c0ad73aea5ef4092736db44c301ddd6b2f4caa7ef051d67c9a4087eebca2db59

Analysis

max time kernel
118s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03/05/2024, 00:42

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General

Target
Release/Compilers/tinycc/include/_mingw.h
Size 3KB
Sample240503-a2rnmscg34
SHA256 f574410ada4c9ae430b17af722102f6b9dc749d7ec8dfe45427e51e269abe034
MD5 3b4e52eaf66a0434ef4bd79587b95243
SHA1 c0c21c145420487f4925e8b8f05e4eb5cae63fc0
SHA512 333b50e44756a6763ebab63719aa2f22332301fb4ddb8b992d10b0685878765eb22e5e56c540ca4ff1d3cd79e7cb7bd119845ca97ca13a270ac3c24d401220e7
MD5 SHA1 SHA512

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 12 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.h\ = "h_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.h	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\edit	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\edit\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\open	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2644	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2636	2312	cmd.exe	29
PID 2312 wrote to memory of 2636	2312	cmd.exe	29
PID 2312 wrote to memory of 2636	2312	cmd.exe	29
PID 2636 wrote to memory of 2644	2636	rundll32.exe	30
PID 2636 wrote to memory of 2644	2636	rundll32.exe	30
PID 2636 wrote to memory of 2644	2636	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Release\Compilers\tinycc\include\_mingw.h
1⤵
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Release\Compilers\tinycc\include\_mingw.h
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Release\Compilers\tinycc\include\_mingw.h
    3⤵
    - Opens file in notepad (likely ransom note)
    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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads