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cmmdwriter.exe

The application cmmdwriter.exe has been detected as a potentially unwanted program by 8 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 d2fpsq9kg43yka.cloudfront.net.
MD5:
c11172f6f3dad20483596226e4d4c7c7

SHA-1:
f3e7773cedfb22e184c2ad039761afe794e86c75

SHA-256:
9fc6d1e4ef673c5a9f7d4935f305d8d00b9e44af6cfed154c5ccd7b6c6007593

Scanner detections:
8 / 68

Status:
Potentially unwanted

Analysis date:
4/26/2024 2:48:19 PM UTC  (today)

Scan engine
Detection
Engine version

Arcabit
Trojan.BF3E777
1.0.0.425

Baidu Antivirus
Adware.Win32.Downloader
4.0.3.15823

Dr.Web
Adware.ClickMeIn.1989
9.0.1.0235

Kaspersky
UDS:DangerousObject.Multi.Generic
14.0.0.1682

McAfee
Generic PUP.y
5600.6664

Panda Antivirus
Generic Suspicious
15.08.23.05

Trend Micro House Call
ADW_ADBUNDLE
7.2.235

Trend Micro
ADW_ADBUNDLE
10.465.23

File size:
40.5 KB (41,440 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\cmmdwriter.exe

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:41 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
768:s4wO7XBz+5Qm3W0tYdrQZHV4EWuWEUOg4jjfS3XJ2qsNGPZOnKUF:fLXB65939tY6HBg4sXJ2jN26

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 3F, 42, 00, E8, F1, 2B, 00, 00, A3, 84, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 36, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
6.8331

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The file cmmdwriter.exe has been seen being distributed by the following URL.

http://d2fpsq9kg43yka.cloudfront.net/cmmdWriter.exe

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

TCP (HTTP):
Connects to ec2-54-85-75-165.compute-1.amazonaws.com  (54.85.75.165:80)

TCP (HTTP):
Connects to 208.43.241.178-static.reverse.softlayer.com  (208.43.241.178:80)

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