3403b146296a920550269a1516fe60577cdaaf1824dcc75e822822e288ba5de3

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
20/07/2024, 16:05

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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-1-5-21-1385883288-3042840365-2734249351-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_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
2760	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2760	AcroRd32.exe
2760	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 2604	1904	cmd.exe	32
PID 1904 wrote to memory of 2604	1904	cmd.exe	32
PID 1904 wrote to memory of 2604	1904	cmd.exe	32
PID 2604 wrote to memory of 2760	2604	rundll32.exe	33
PID 2604 wrote to memory of 2760	2604	rundll32.exe	33
PID 2604 wrote to memory of 2760	2604	rundll32.exe	33
PID 2604 wrote to memory of 2760	2604	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1904
- 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:2604
- - 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:2760

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
b8903ed55bb64cb33ed5b484a0f9648d

SHA1
55339f7acca37982905b93b8e92f42c0fb222d6f

SHA256
78e7157cf299cbae8265d0fa87e8af39aaa88bb8cca046aef99417038df2a312

SHA512
cecd83926f82cfb15e7921cfbabf761204e23403a0b80191283dfe04847e2c7f0ff48d7b2503826cf536159bd5cd1c26087581acd2c74a90e76ade5392658122

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