eac0f3d162b8aa13eb8095fb3c871f6a787bc287f7afb9eb49993a3396c2a31f

Analysis

max time kernel
124s
max time network
136s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 11:15

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General

Target

chrome_200_percent.pak
Size

175KB
MD5

48515d600258d60019c6b9c6421f79f6
SHA1

0ef0b44641d38327a360aa6954b3b6e5aab2af16
SHA256

07bee34e189fe9a8789aed78ea59ad41414b6e611e7d74da62f8e6ca36af01ce
SHA512

b7266bc8abc55bd389f594dac0c0641ecf07703f35d769b87e731b5fdf4353316d44f3782a4329b3f0e260dead6b114426ddb1b0fb8cd4a51e0b90635f1191d9
SSDEEP

3072:rDQYaEQN6AJPrSxQCS/qGTafR54x5GMR+F44ffbdZnYw9p4AbIVGYoDd+HxNK/r4:rDQYaNN68rC4/Ygx5GMRejnbdZnVE6YR

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-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_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
2368	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2368	AcroRd32.exe
2368	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2588	2232	cmd.exe	29
PID 2232 wrote to memory of 2588	2232	cmd.exe	29
PID 2232 wrote to memory of 2588	2232	cmd.exe	29
PID 2588 wrote to memory of 2368	2588	rundll32.exe	30
PID 2588 wrote to memory of 2368	2588	rundll32.exe	30
PID 2588 wrote to memory of 2368	2588	rundll32.exe	30
PID 2588 wrote to memory of 2368	2588	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:2232
- 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:2588
- - 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:2368

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
6420a2c592ce5042f30d0ec7b259fbcd

SHA1
c102a967f2b5f159a1ea68d4a9889e37ff689ba0

SHA256
7e6951a248be427d5acc5a06ee358d05855b6ffd1fb351141d20562a39d78c45

SHA512
906fd8c0d3f1d3e02fc748a17aecdfc17f5456438255f5a11b642fc54037f6737f72f9974c9e4d74b67e753661c5419feff286d86e8287c938203c33807a5e66

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