ef179f483aaa529e930f32ff5adb5b156cd56488c398797251bb992a5ca19e93

Analysis

max time kernel
117s
max time network
135s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-02-2024 04:37

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General

Target

chrome_200_percent.pak
Size

222KB
MD5

47668ac5038e68a565e0a9243df3c9e5
SHA1

38408f73501162d96757a72c63e41e78541c8e8e
SHA256

fac820a98b746a04ce14ec40c7268d6a58819133972b538f9720a5363c862e32
SHA512

5412041c923057ff320aba09674b309b7fd71ede7e467f47df54f92b7c124e3040914d6b8083272ef9f985eef1626eaf4606b17a3cae97cfe507fb74bc6f0f89
SSDEEP

6144:QsDQYaSN6svydHLhQegx5GMRejnbdZnVE6YoppO4:QBfSN6svydrx6edhVELoXO4

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-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2564	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2564	AcroRd32.exe
2564	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 2640	1624	cmd.exe	29
PID 1624 wrote to memory of 2640	1624	cmd.exe	29
PID 1624 wrote to memory of 2640	1624	cmd.exe	29
PID 2640 wrote to memory of 2564	2640	rundll32.exe	30
PID 2640 wrote to memory of 2564	2640	rundll32.exe	30
PID 2640 wrote to memory of 2564	2640	rundll32.exe	30
PID 2640 wrote to memory of 2564	2640	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:1624
- 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:2640
- - 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:2564

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
a822e11a5288ee2738057f417970554c

SHA1
132178494a06cfbb108d3c26a9b10bdc2d96ac91

SHA256
a40438b84a6a421eaec9ea1f8b9ce5f646a8a33e5360b58e8e553c9dff7e3b4e

SHA512
6cc6a7ab495738a3804f6d81c835263ed2ca5d0b89b87895000dc695ac5155a8c3dfe1f255ccc444bdafa299628e5555679f7d1893485ecca0d0e1bd2e7de6b3

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