80a2f9e557e81028d751037e5d27bb90cd7b822bc0e6a6e4201287074d8fec08

Analysis

max time kernel
119s
max time network
126s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 20:04

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General

Target
chrome_200_percent.pak
Size 175KB
Sample240219-ythyjacg43
SHA256 07bee34e189fe9a8789aed78ea59ad41414b6e611e7d74da62f8e6ca36af01ce
MD5 48515d600258d60019c6b9c6421f79f6
SHA1 0ef0b44641d38327a360aa6954b3b6e5aab2af16
SHA512 b7266bc8abc55bd389f594dac0c0641ecf07703f35d769b87e731b5fdf4353316d44f3782a4329b3f0e260dead6b114426ddb1b0fb8cd4a51e0b90635f1191d9
SSDEEP 3072:rDQYaEQN6AJPrSxQCS/qGTafR54x5GMR+F44ffbdZnYw9p4AbIVGYoDd+HxNK/r4:rDQYaNN68rC4/Ygx5GMRejnbdZnVE6YR
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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_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-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2644	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2644	AcroRd32.exe
2644	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2568	2160	cmd.exe	29
PID 2160 wrote to memory of 2568	2160	cmd.exe	29
PID 2160 wrote to memory of 2568	2160	cmd.exe	29
PID 2568 wrote to memory of 2644	2568	rundll32.exe	30
PID 2568 wrote to memory of 2644	2568	rundll32.exe	30
PID 2568 wrote to memory of 2644	2568	rundll32.exe	30
PID 2568 wrote to memory of 2644	2568	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:2160
- 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:2568
- - 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:2644

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 8152fe0728c27aaa752c756bafe6f9a89a527e9b515a248962e6926d42259e92
MD5 47920dee5b153a88cabba7d69a303f06
SHA1 58d7dea845628aea7a9f21178251f7b231d6ecac
SHA512 0c3a7adb49d6b8e3c5218b35b16c9a619d8ce1f70ceba2a14e7b403c936d750aeeafa5677c029ee5c71389ee41d4267c29cfdaa1772d2b273df37ebf021d31d8
MD5 SHA1 SHA512

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