494e6f68f4643f21352be72869770ddb5ca807c369f80fe1cdd9b54167d580d3

Analysis

max time kernel
122s
max time network
128s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
11/03/2024, 00:35

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General

Target

chrome_200_percent.pak
Size

173KB
MD5

4610337e3332b7e65b73a6ea738b47df
SHA1

8d824c9cf0a84ab902e8069a4de9bf6c1a9aaf3b
SHA256

c91abf556e55c29d1ea9f560bb17cc3489cb67a5d0c7a22b58485f5f2fbcf25c
SHA512

039b50284d28dcd447e0a486a099fa99914d29b543093cccda77bbefdd61f7b7f05bb84b2708ae128c5f2d0c0ab19046d08796d1b5a1cff395a0689ab25ccb51
SSDEEP

3072:4DQYaEQN6AJPKNzIwafR54x5GMR+F44ffbdZnYw9p4AbIVGYoDd+HxNK/rIM0:4DQYaNN68QEVgx5GMRejnbdZnVE6YopY

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-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_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
2680	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2680	AcroRd32.exe
2680	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2360	2040	cmd.exe	29
PID 2040 wrote to memory of 2360	2040	cmd.exe	29
PID 2040 wrote to memory of 2360	2040	cmd.exe	29
PID 2360 wrote to memory of 2680	2360	rundll32.exe	30
PID 2360 wrote to memory of 2680	2360	rundll32.exe	30
PID 2360 wrote to memory of 2680	2360	rundll32.exe	30
PID 2360 wrote to memory of 2680	2360	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2360
- - 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\chrome_200_percent.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2680

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
03a6383ba11e63d9a6831bf6c1ea219c

SHA1
c44dd9117c1adea67c9c811f9281bd4550850a07

SHA256
59529b1fb0914419e7e3b9f9958c146bd049047f1754e296c1b01fdd13b65d52

SHA512
d42364faa6e529adf6751603f8d150f63e70e025d47cd1f4d514299601980298fdf056a67d7fcbba7da90015dc498d9337bfd955307f84a3251845dbb224d90b

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