f8a2c7bf6611cc965e76f1286fc460ec47f3d7e4353877716417cd8b553b2667

Analysis

max time kernel
1564s
max time network
1577s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 00:54

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General

Target

locales/th.pak
Size

248KB
MD5

349fadf44982eac1e125653267f0b4c1
SHA1

661ee5255bcffa375d07c20cfa76fe91dd88a636
SHA256

d2608a61e3012fc164550c2b8ded70d91a00ed8103beaae8a90ab73d49ebb161
SHA512

00de83a3a695d055c5170b16b2e1934c6af703db3918281d7c31a06d55811a75e0d5f9429709ddfef316a31dfc555cf4be62796f42541cbed790af6c9d10f344
SSDEEP

6144:VTnCJFkcSCkIO+CSGHIqXqWmh+OqeZK8QyYo2w1p7GZuRM5aQxFvM4Obhi8ltOcG:FnsFkcSCkIO+CSGHIqXqWmh+OqeZK8QB

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2836	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2836	AcroRd32.exe
2836	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 2736	848	cmd.exe	29
PID 848 wrote to memory of 2736	848	cmd.exe	29
PID 848 wrote to memory of 2736	848	cmd.exe	29
PID 2736 wrote to memory of 2836	2736	rundll32.exe	30
PID 2736 wrote to memory of 2836	2736	rundll32.exe	30
PID 2736 wrote to memory of 2836	2736	rundll32.exe	30
PID 2736 wrote to memory of 2836	2736	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\th.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:848
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\th.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2736
- - 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\locales\th.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
ca8d70038334c0c0a08d99fd48017f1d

SHA1
3eaa4e3c54f62d3d34ac31737bfdc238cdb8126b

SHA256
013808217d6213a522c6641fb2f819fcbf3b55f7a2d219295296090d55bd5472

SHA512
d5101a733fc6142db895e975d5da791cba21f270012ef86c197696604dc7bb82e6a3f19e19958086a656cc24e1f3c653aa980bb783eede18ca04f5a5a29a052d

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