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nsadb70.tmp

The file nsadb70.tmp has been detected as a potentially unwanted program by 4 anti-malware 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 s3.amazonaws.com. While running, it connects to the Internet address server-54-192-55-67.jfk6.r.cloudfront.net on port 80 using the HTTP protocol.
MD5:
4657b9a3bf1bb7830e91aef6522eeb26

SHA-1:
eae59adfb387b31e5f8eb3f1b67b6c499fdca8a9

SHA-256:
e2ae615b7c3158187dc8a450b185cf386a28dc0478073c2e0f2a9b018de6c030

Scanner detections:
4 / 68

Status:
Potentially unwanted

Analysis date:
5/4/2024 9:18:47 AM UTC  (today)

Scan engine
Detection
Engine version

Arcabit
PUP.Adware.ConvertAd
1.0.0.628

Kaspersky
UDS:DangerousObject.Multi.Generic
14.0.0.1022

Qihoo 360 Security
HEUR/QVM42.1.Malware.Gen
1.0.0.1077

Reason Heuristics
Adware.Generic.ABT (M)
16.2.29.18

File size:
219.5 KB (224,746 bytes)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\nsadb70.tmp

File PE Metadata
Compilation timestamp:
12/6/2009 5:50:35 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:zoPyys5jXJQCgcvs0ucqqiRCc5XMTbPedkad1lFko7yRXACLxnQAJTB00fwwO:zzfHbVu3qqCc5cTbPCk2KtLxfTKL

Entry address:
0x323F

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 98, 27, 7A, 00, E8, 09, 2C, 00, 00, A3, E4, 26, 7A, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, DC, 79, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, E0, 1E, 7A, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 80, 7A, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.9078

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file nsadb70.tmp has been seen being distributed by the following URL.

https://s3.amazonaws.com/cf_vopackage/.../SearchUpdater.exe

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

TCP (HTTP):
Connects to server-54-230-38-28.jfk1.r.cloudfront.net  (54.230.38.28:80)

TCP (HTTP):
Connects to server-54-192-55-67.jfk6.r.cloudfront.net  (54.192.55.67:80)

TCP (HTTP):
Connects to server-54-192-55-32.jfk6.r.cloudfront.net  (54.192.55.32:80)

TCP (HTTP):
Connects to server-54-192-55-175.jfk6.r.cloudfront.net  (54.192.55.175:80)

TCP (HTTP):
Connects to ec2-54-225-164-100.compute-1.amazonaws.com  (54.225.164.100:80)

TCP (HTTP):
Connects to ec2-52-1-45-42.compute-1.amazonaws.com  (52.1.45.42:80)

TCP (HTTP):
Connects to ec2-107-22-235-143.compute-1.amazonaws.com  (107.22.235.143:80)

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