Malware Analysis Report

2025-03-14 23:43

Sample ID 240407-w1yw8aah6v
Target 08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa
SHA256 08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa
Tags
persistence
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa

Threat Level: Likely malicious

The file 08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa was found to be: Likely malicious.

Malicious Activity Summary

persistence

Modifies AppInit DLL entries

Executes dropped EXE

Drops file in Program Files directory

Unsigned PE

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 18:23

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 18:23

Reported

2024-04-07 18:27

Platform

win7-20240221-en

Max time kernel

118s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa.exe"

Signatures

Modifies AppInit DLL entries

persistence

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\PROGRA~3\Mozilla\iajbwsg.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\iajbwsg.exe C:\Users\Admin\AppData\Local\Temp\08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa.exe N/A
File created C:\PROGRA~3\Mozilla\rnnqqck.dll C:\PROGRA~3\Mozilla\iajbwsg.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa.exe N/A
N/A N/A C:\PROGRA~3\Mozilla\iajbwsg.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2668 wrote to memory of 2632 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\iajbwsg.exe
PID 2668 wrote to memory of 2632 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\iajbwsg.exe
PID 2668 wrote to memory of 2632 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\iajbwsg.exe
PID 2668 wrote to memory of 2632 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\iajbwsg.exe

Processes

C:\Users\Admin\AppData\Local\Temp\08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa.exe

"C:\Users\Admin\AppData\Local\Temp\08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {ABFDE341-3586-4B3D-B6A8-BAC9CCD2D683} S-1-5-18:NT AUTHORITY\System:Service:

C:\PROGRA~3\Mozilla\iajbwsg.exe

C:\PROGRA~3\Mozilla\iajbwsg.exe -zqrqjuc

Network

N/A

Files

memory/2500-0-0x00000000002B0000-0x000000000030B000-memory.dmp

memory/2500-1-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2500-3-0x0000000000400000-0x000000000045B000-memory.dmp

C:\PROGRA~3\Mozilla\iajbwsg.exe

MD5 eab7b4478771f3435d2ccb50a75eb383
SHA1 385dd154ddb6ab2e780ad7e01c678e27911fec21
SHA256 e8d8f201a323c55349a4a3917917a3799fb9682141e1955abba1163b784c0f5b
SHA512 5f0da2096061dc9e513c7e97ad7698f8e406a067abff5b9220143ee1499e8bc5790671b358616858be61309c473dfc2568b310eaa999ecf5f3e6615eb1c81fff

memory/2632-6-0x00000000002B0000-0x000000000030B000-memory.dmp

memory/2632-7-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2632-9-0x0000000000400000-0x000000000045B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 18:23

Reported

2024-04-07 18:26

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa.exe"

Signatures

Modifies AppInit DLL entries

persistence

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\PROGRA~3\Mozilla\gfuniul.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\gfuniul.exe C:\Users\Admin\AppData\Local\Temp\08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa.exe N/A
File created C:\PROGRA~3\Mozilla\kzlcazd.dll C:\PROGRA~3\Mozilla\gfuniul.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa.exe

"C:\Users\Admin\AppData\Local\Temp\08e2c4cab6f6714c9684e197ec95e52174bf8d8238bf46ef3656e98ef0e132aa.exe"

C:\PROGRA~3\Mozilla\gfuniul.exe

C:\PROGRA~3\Mozilla\gfuniul.exe -lfdzfzd

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 241.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 17.143.109.104.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/860-0-0x0000000000600000-0x000000000065B000-memory.dmp

memory/860-1-0x0000000000400000-0x000000000045B000-memory.dmp

C:\ProgramData\Mozilla\gfuniul.exe

MD5 7055424a4ce404171dbb6d8e10140e8e
SHA1 e5cc42ad4b6da598f4b926254fa6fe88ce860ac1
SHA256 411bd1dced55148fb14da33d63f6ed72861b45fbc753a27a0a254088eaf178a6
SHA512 5b23dc54543df839ed9b1dd686540fc5e0b3c92555657f2cca6542b1b5251152bbdc954cea368dced4e4a01db59de4956c4f42e6c9c70ec45fffa1ce16ce4624

memory/860-5-0x0000000000400000-0x000000000045B000-memory.dmp

memory/860-8-0x0000000000600000-0x000000000065B000-memory.dmp

memory/2372-7-0x0000000000D50000-0x0000000000DAB000-memory.dmp

memory/2372-9-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2372-11-0x0000000000400000-0x000000000045B000-memory.dmp