decbeada040f605e83f0b4df16aba94ced8762200a35d3e78ef7aedee49b37ad

Analysis

max time kernel
122s
max time network
146s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 22:01

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General

Target

locales/am.pak
Size

551KB
MD5

952933d2d388683c91ee7eaa7539e625
SHA1

7a0f5a10d7d61c32577c0d027db8c66c27e56c7d
SHA256

55357baf28716a73f79ac9a6af1ae63972eb79f93c415715518027fc5c528504
SHA512

5aa5ef0ed1da98b36840389e694dc5dcef496524314b61603d0c5ee03a663bb4c753623fb400792754b51331df20ac6d9cf97c183922f19fc0072822688f988d
SSDEEP

12288:WcWln6HuPPL8xJTgWHsEaYM5g9yaAVmHukPQyx30jH8+I:WR6YL8xOWHbaYM5g9yaAVmvPQ+

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-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2700	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2700	AcroRd32.exe
2700	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2976 wrote to memory of 2772	2976	cmd.exe	29
PID 2976 wrote to memory of 2772	2976	cmd.exe	29
PID 2976 wrote to memory of 2772	2976	cmd.exe	29
PID 2772 wrote to memory of 2700	2772	rundll32.exe	30
PID 2772 wrote to memory of 2700	2772	rundll32.exe	30
PID 2772 wrote to memory of 2700	2772	rundll32.exe	30
PID 2772 wrote to memory of 2700	2772	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\am.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\am.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2772
- - 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\am.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2700

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

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Downloads

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

Filesize
3KB

MD5
fde126b2d13e9f5f69feca37b2500279

SHA1
563cf00cd9863ed52ba897c60c1276cc3b93fc6c

SHA256
8e26dcf71da05a304f16d95b93bfeb043a023c9232718bf6b872911333975d56

SHA512
ffa2e55ea340003d3f6456a441ba46e01884d1b31f76644b5e01ab55714e4e495a130b36dfa0eab5baa520b0fe7c123cab8c028d0e723033301d3cb475c73875

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