c5fd5691f4eec136f0bdbfbc3f84c0f70cb0b39d03ea4402eace25b90a699c82

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 14:31

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General

Target

chrome_200_percent.pak
Size

183KB
MD5

1985b8fc603db4d83df72cfaeeac7c50
SHA1

5b02363de1c193827062bfa628261b1ec16bd8cf
SHA256

7f9ded50d81c50f9c6ed89591fa621fabbd45cef150c8aabcceb3b7a9de5603b
SHA512

27e90dd18cbce0e27c70b395895ef60a8d2f2f3c3f2ca38f48b7ecf6b0d5e6fefbe88df7e7c98224222b34ff0fbd60268fdec17440f1055535a79002044c955b
SSDEEP

3072:yDfDQYaEM+9bslr+bEfEfRIGMR+F8fQnYw9pGbXGYoDd+qHqRxmeK/rIM0:6DQYaF+9bMhCWGMRe8InVXYopym74

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_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-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2684	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2684	AcroRd32.exe
2684	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2964	2212	cmd.exe	31
PID 2212 wrote to memory of 2964	2212	cmd.exe	31
PID 2212 wrote to memory of 2964	2212	cmd.exe	31
PID 2964 wrote to memory of 2684	2964	rundll32.exe	32
PID 2964 wrote to memory of 2684	2964	rundll32.exe	32
PID 2964 wrote to memory of 2684	2964	rundll32.exe	32
PID 2964 wrote to memory of 2684	2964	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2212
- 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:2964
- - 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⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
147de68cbcf89414e77d391d92e0e587

SHA1
60a777e5f999bea8109d03f98b1415fb1de2c30c

SHA256
de41d6c2ba1987bac48ae3c45590625bf8a4090d7e9c5c925620da0806fbb963

SHA512
7858e848dc7a142b380107e1a10033ed2f8e7772d87c5e464e2d39b84162fec0b12cb6b4f9edf2431b649b22b7c20d21fde8acae8fc48773cf77f4952fb34252

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