203b1ecdbcd0747b3c8e3fdd19a92e49a7e35054ae85b615b12eb8cb7248bed0

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 08:29

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General

Target

SOSA.pyc
Size

14KB
MD5

29087598f55b19f875ba04c9ccf94ccf
SHA1

725ce1fd2149d36186a88289b49ded17be8d13e6
SHA256

685d53117ad5127cebb8f6423795f078caedacb6c2d4f2e26fe0bb2d4aa95f57
SHA512

8d1f207d45a5563d2b5a7132f8b157b4037c24afa3d875445d39415a0cc6fb636f92627317a794c104e4514c3c231bf53b7cc02fb04274cd16dcf69eedb18987
SSDEEP

192:uJ8x7+tkOU36SfmdMzjzZzHP+MBjGy/OKW70RYgl2zKwuHPu4uRWrFFFO:uJ8x7+tkOU36SfmdMzjzZ5jG0BKNQ8

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2468 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2468 AcroRd32.exe
2468 AcroRd32.exe

pid	process
2468	AcroRd32.exe

pid	process
2468	AcroRd32.exe
2468	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1796 wrote to memory of 2652	1796	cmd.exe	rundll32.exe
PID 1796 wrote to memory of 2652	1796	cmd.exe	rundll32.exe
PID 1796 wrote to memory of 2652	1796	cmd.exe	rundll32.exe
PID 2652 wrote to memory of 2468	2652	rundll32.exe	AcroRd32.exe
PID 2652 wrote to memory of 2468	2652	rundll32.exe	AcroRd32.exe
PID 2652 wrote to memory of 2468	2652	rundll32.exe	AcroRd32.exe
PID 2652 wrote to memory of 2468	2652	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\SOSA.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1796

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SOSA.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2652

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\SOSA.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2468

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
154c3fa786323b4ed79b518c5f329f48

SHA1
4d93a4a2e8a539fed3bd655f23b763ebd1703a70

SHA256
b1f2acc300c3344d81d0f8e1338a5c030c5133d567c548f459d333767e03ad35

SHA512
278b5bf12592241f9695ad210f7a580623a95bfdc402b1b73e4907955d8b4ec967aa811ec86648d7735e68e5e8d5c545dec3650af0ecb69cf25b5d3772580bfa

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