2e24c7889e6bc13fefd05187bd3f17edd2beb8aa26564cae5b7f002fa311aa06

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02-02-2024 00:30

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General

Target

overrides/config/bhmenu-client.toml
Size

2KB
MD5

023b12c3290ac0f55bb9ae5f67b2cab7
SHA1

421a6b53b53dc70287ef8b635013b7f475688429
SHA256

326d12c4ed83dbf385013c7925f3abe4bfcc127f80137d41ec5be27dda0f073b
SHA512

7676ed178102872401d06738f4b01f0ab5940aaf700ea2a077ce15bf1be0f695294728a1b52f6cac773e6d8f410b5a5bc06582a6c3096d7c067932da65ce4e42

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\toml_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.toml\ = "toml_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\toml_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\toml_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\toml_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\toml_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.toml	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\toml_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

576 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

576 AcroRd32.exe
576 AcroRd32.exe

pid	process
576	AcroRd32.exe

pid	process
576	AcroRd32.exe
576	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1384 wrote to memory of 324	1384	cmd.exe	rundll32.exe
PID 1384 wrote to memory of 324	1384	cmd.exe	rundll32.exe
PID 1384 wrote to memory of 324	1384	cmd.exe	rundll32.exe
PID 324 wrote to memory of 576	324	rundll32.exe	AcroRd32.exe
PID 324 wrote to memory of 576	324	rundll32.exe	AcroRd32.exe
PID 324 wrote to memory of 576	324	rundll32.exe	AcroRd32.exe
PID 324 wrote to memory of 576	324	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\overrides\config\bhmenu-client.toml
1⤵
- Suspicious use of WriteProcessMemory
PID:1384

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\overrides\config\bhmenu-client.toml
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:324

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\overrides\config\bhmenu-client.toml"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:576

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
58829e8702bb47d6b6221736cd3749ad

SHA1
2b84a1b1ed0974a921779509ec0d3d28d546f1d1

SHA256
d6ac8247309a7209050e165ffe14b9515b5a30cf6f6dea75b466c603cd58fa4c

SHA512
0a6b52eba610f41c653e18e9e917d35661e624237ab94555e4d2ce96f4701bc4e6a67f29ec9625ec4ea225ebb4508eb2e31e79fd3335541a2926a9f1480cedc8

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