chrome_update.exe

The executable chrome_update.exe has been detected as malware by 13 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 doc-0c-bk-docs.googleusercontent.com and multiple other hosts.
MD5:
133d55e591e58f74ff51454b097ad4ff

SHA-1:
2f1060429c31002e6e8b1b2d1e37c21e69c5f061

SHA-256:
a20ed54ae3df24166e9b10bb7978ff514fea01eb59344859b50056f8a6c4b295

Scanner detections:
13 / 68

Status:
Malware

Analysis date:
2/25/2025 10:26:26 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Kazy.720708
517

Arcabit
Trojan.Kazy.DAFF44
1.0.0.425

AVG
MSIL8
2016.0.2995

Baidu Antivirus
Trojan.MSIL.StartPage
4.0.3.1596

Bitdefender
Gen:Variant.Kazy.720708
1.0.20.1245

Emsisoft Anti-Malware
Gen:Variant.Kazy.720708
8.15.09.06.06

ESET NOD32
MSIL/StartPage.BH (variant)
9.12184

Fortinet FortiGate
MSIL/StartPage.BH!tr
9/6/2015

F-Secure
Gen:Variant.Kazy.720708
11.2015-06-09_1

G Data
Gen:Variant.Kazy.720708
15.9.25

IKARUS anti.virus
Trojan.MSIL.StartPage
t3scan.1.9.5.0

Malwarebytes
Trojan.Banker
v2015.08.07.09

MicroWorld eScan
Gen:Variant.Kazy.720708
16.0.0.747

File size:
51.4 KB (52,608 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

File PE Metadata
Compilation timestamp:
10/7/2014 1:40:23 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
1536:c8DE/p+FNX2AdvND8fKb0DlXJEJhExZFJCUWJ/LhUyTPw+/o:c8Dsp+FNX1dFOvDlXJuhEb8/LFTPVA

Entry address:
0x30E2

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, 09, A3, 78, E4, 42, 00, E8, A8, 2D, 00, 00, A3, C4, E3, 42, 00, 53, 8D, 44, 24, 38, 68, 60, 01, 00, 00, 50, 53, 68, 00, 88, 42, 00, FF, 15, 64, 71, 40, 00, 68, 80, 91, 40, 00, 68, C0, DB, 42, 00, E8, 52, 2A, 00, 00, FF, 15, 20, 71, 40, 00, BD, 00, 40, 43, 00, 50, 55, E8, 40, 2A...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file chrome_update.exe has been seen being distributed by the following 2 URLs.

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