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b2wr.exe

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from d2htwdv930b0cg.cloudfront.net.
MD5:
72f4a7184e46d99d5be4bfdddae0d514

SHA-1:
f3afc796df1701fcbb827ab8a57d14e3c3507a7f

SHA-256:
cfdf05c6404a6c7a1eed31e301ac9c93546ec16fb00c8dcba80f287d134f36b4

Scanner detections:
4 / 68

Status:
Inconclusive  (not enough data for an accurate detection)

Analysis date:
11/27/2024 8:51:27 AM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Adware.Win32.Genome
4.0.3.151112

Kaspersky
Trojan-Downloader.Win32.Genome
15.0.0.562

Panda Antivirus
Generic Suspicious
15.11.12.07

Qihoo 360 Security
HEUR/QVM42.1.Malware.Gen
1.0.0.1015

File size:
81.2 KB (83,141 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\b2wr.exe

File PE Metadata
Compilation timestamp:
12/5/2009 11:50:35 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
1536:VoLDYsacy7mHMowHjXJvbrnmmVu9OlJeqJ87dYnqm5lO1GMaNGC3kY1O:VoPyys5jXJ/sUkqJ87mqmH+gGgk7

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...
 
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Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file b2wr.exe has been seen being distributed by the following URL.

http://d2htwdv930b0cg.cloudfront.net/b2wr.exe

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