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psemu3.exe

The executable psemu3.exe has been detected as malware by 16 anti-virus scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from 1drv.ms and multiple other hosts. While running, it connects to the Internet address server-54-230-11-150.lhr3.r.cloudfront.net on port 80 using the HTTP protocol.
MD5:
566308d6ea424e35f7ad74eb16b6c559

SHA-1:
e7ef56124a4a1e5236ce71d2076dc98c3973e78c

SHA-256:
84f48ccce0b53e39c666dc1043db4c3a2e9c1a000b3d02547a244d09d9b5416b

Scanner detections:
16 / 68

Status:
Malware

Analysis date:
4/24/2024 10:11:48 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Generic.749632
864

Baidu Antivirus
Trojan.MSIL.Agent
4.0.3.14923

Bitdefender
Application.Generic.749632
1.0.20.1330

Comodo Security
UnclassifiedMalware
19599

ESET NOD32
Win32/Somoto
8.10454

F-Secure
Application.Generic.749632
11.2014-23-09_3

G Data
Application.Generic.749632
14.9.24

Kaspersky
HEUR:Trojan.Win32.Generic
14.0.0.3206

McAfee
Artemis!566308D6EA42
5600.6998

MicroWorld eScan
Application.Generic.749632
15.0.0.798

Norman
Suspicious_Gen4.GZASJ
11.20140923

Qihoo 360 Security
Win32/Trojan.e6d
1.0.0.1015

Quick Heal
Trojan.Generic.g5
9.14.14.00

Rising Antivirus
PE:Trojan.Win32.Generic.17433B4A!390282058
23.00.65.14921

Sophos
Generic PUA HF
4.98

Trend Micro House Call
Suspicious_GEN.F47V0905
7.2.266

File size:
4.7 MB (4,887,930 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\psemu3.exe

File PE Metadata
Compilation timestamp:
12/25/2013 6:01:41 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
98304:FUbtoZoYG6CYn3cd23d1vPD2YfcmnAwQZq+6b/Ho0G0+yhtVxA55En0S9Ww:PKT6JnJvrrcmnAAzL+K25JS9Ww

Entry address:
0x30E4

Entry point:
81, EC, 84, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 90, 91, 40, 00, 89, 5C, 24, 20, C6, 44, 24, 14, 20, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, 1C, 71, 40, 00, 53, FF, 15, 8C, 72, 40, 00, 6A, 08, A3, 58, E4, 42, 00, E8, 95, 2D, 00, 00, A3, A4, E3, 42, 00, 53, 8D, 44, 24, 38, 68, 60, 01, 00, 00, 50, 53, 68, E0, 87, 42, 00, FF, 15, 64, 71, 40, 00, 68, 80, 91, 40, 00, 68, A0, DB, 42, 00, E8, 3F, 2A, 00, 00, FF, 15, 20, 71, 40, 00, BD, 00, 40, 43, 00, 50, 55, E8, 2D, 2A...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file psemu3.exe has been seen being distributed by the following 14 URLs.

http://1drv.ms/1upzH4W

https://qs7fuq-ch3302.files.1drv.com/.../psemu3.exe

https://qs7fuq.by3301.livefilestore.com/.../psemu3.exe

https://qs7fuq-ch3302.files.1drv.com/.../psemu3.exe

https://qs7fuq.by3301.livefilestore.com/.../psemu3.exe

https://qs7fuq-ch3302.files.1drv.com/.../psemu3.exe

https://login.live.com/login.srf?wa=wsignin1.0&rpsnv=12&ct=1417672651&rver=6.4.6456.0&wp=MBI_SSL_SHARED&wreply=https://.../download?resid=DA517CDAE0902926!107&lc=1033&id=250206&cbcxt=sky

https://login.live.com/login.srf?wa=wsignin1.0&rpsnv=12&ct=1418073236&rver=6.4.6456.0&wp=MBI_SSL_SHARED&wreply=https://.../download?resid=DA517CDAE0902926!107&lc=1033&id=250206&cbcxt=sky

https://qs7fuq.by3301.livefilestore.com/.../psemu3.exe

https://qs7fuq.by3301.livefilestore.com/.../psemu3.exe

https://qs7fuq.by3301.livefilestore.com/.../psemu3.exe

https://qs7fuq.by3301.livefilestore.com/.../psemu3.exe

https://qs7fuq.by3301.livefilestore.com/.../psemu3.exe

https://onedrive.live.com/download?resid=DA517CDAE0902926!107

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to server-54-230-11-150.lhr3.r.cloudfront.net  (54.230.11.150:80)

TCP (HTTP):
Connects to server-54-230-11-115.lhr3.r.cloudfront.net  (54.230.11.115:80)

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