f8a2c7bf6611cc965e76f1286fc460ec47f3d7e4353877716417cd8b553b2667

Analysis

max time kernel
1557s
max time network
1568s
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/sl.pak
Size 135KB
Sample240203-a89sssdbd6
SHA256 75830c187e5145c1bccbb00a443cd209db7c3d06f13165568e26a32aad6b98f6
MD5 5eba56efe389fc26bba76f674874d638
SHA1 81ad6b0a0c29bac657b81a89c34e13c780679af7
SHA512 acceefbf953172f42e1321db5d23dff38b5aecde242b85d40d22efe631454b6aa609c05628ef97e8f58412287aceda2b5fb045fd6c8b41bf0525570c324afdac
SSDEEP 3072:FY9W4n4qyRw1uW3NTDPAJ/hIqTCO5i/fzpzZQqu:mo4Gq3FgIsi/fzpNQqu
MD5 SHA1 SHA512 SSDEEP

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\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\.pak	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\Read\command	rundll32.exe
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
Key created	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000_CLASSES\pak_auto_file\shell	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
2764	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2764	AcroRd32.exe
2764	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 2760	1312	cmd.exe	29
PID 1312 wrote to memory of 2760	1312	cmd.exe	29
PID 1312 wrote to memory of 2760	1312	cmd.exe	29
PID 2760 wrote to memory of 2764	2760	rundll32.exe	30
PID 2760 wrote to memory of 2764	2760	rundll32.exe	30
PID 2760 wrote to memory of 2764	2760	rundll32.exe	30
PID 2760 wrote to memory of 2764	2760	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\sl.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1312
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\sl.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2760
- - 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\sl.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2764

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

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 a591f98f7c0ef3d4ce3bda096a8f4b06f071baf89c2aa21750a1208ca9b4d4bb
MD5 740d3d25d9722ca45bf5d483cc812ad1
SHA1 16d304aa60c0a61ebb8cb4a2f3cb15230b32c20d
SHA512 abfafc94ada9f1578b1ff2d55f487ac315ccd5d77c264ad44eb61657659f9883635ff7fff830b65a1c0ad3e54d11f32453be1612745438316cdd6ff82692b561
MD5 SHA1 SHA512

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