ea3c62424756f7a053d8b3167415b10fa6bba9600110cfbd73c4c557491263fa

Analysis

max time kernel
1563s
max time network
1567s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 19:40

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General

Target

Stockfish-15.1_Windows_32bit/source/.git/hooks/pre-receive.sample
Size

544B
MD5

2ad18ec82c20af7b5926ed9cea6aeedd
SHA1

705a17d259e7896f0082fe2e9f2c0c3b127be5ac
SHA256

a4c3d2b9c7bb3fd8d1441c31bd4ee71a595d66b44fcf49ddb310252320169989
SHA512

ee08c11fab7e896b2e09c241954ba7640338b12c75cd8040daf053c31b2f22236d7a0deac736f89d305236312fdb4f560a38d4d8debdcc9dcdd23b2d975907d5

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

Processes:

AcroRd32.exe

description ioc process

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

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

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\sample_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.sample	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\sample_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\sample_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\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\sample_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.sample\ = "sample_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\sample_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\sample_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

1244 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

1244 AcroRd32.exe
1244 AcroRd32.exe

pid	process
1244	AcroRd32.exe

pid	process
1244	AcroRd32.exe
1244	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1716 wrote to memory of 1072	1716	cmd.exe	rundll32.exe
PID 1716 wrote to memory of 1072	1716	cmd.exe	rundll32.exe
PID 1716 wrote to memory of 1072	1716	cmd.exe	rundll32.exe
PID 1072 wrote to memory of 1244	1072	rundll32.exe	AcroRd32.exe
PID 1072 wrote to memory of 1244	1072	rundll32.exe	AcroRd32.exe
PID 1072 wrote to memory of 1244	1072	rundll32.exe	AcroRd32.exe
PID 1072 wrote to memory of 1244	1072	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stockfish-15.1_Windows_32bit\source\.git\hooks\pre-receive.sample
1⤵
- Suspicious use of WriteProcessMemory
PID:1716

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Stockfish-15.1_Windows_32bit\source\.git\hooks\pre-receive.sample
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1072

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\Stockfish-15.1_Windows_32bit\source\.git\hooks\pre-receive.sample"
3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1244

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
4d1bfde3fb5092f2206d9139d59c42b4

SHA1
74ee67af7df6614ebaff04ed65588a71ab0d73ed

SHA256
dc78332f0ce07edcd0164257670b40ea4ef3a481b3f822c57379ea2dca98fe09

SHA512
eef1aecb87a0b65e01e97f1404443ca0f84071acb5867f204eab635a4ac8bafbe51254d59672640b0563d53fb19025b6ba8e0dd47365e1d79cacd9e99598a7a7

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