77b4650847cb0c0389bcbe8feda2807d42d3f59cdd3f2b0b07f8dcc04e904fa4

Analysis

max time kernel
38s
max time network
44s
platform
windows7_x64
resource
win7-20220414-en
submitted
27-05-2022 20:21

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General

Target

APT-Hunter-master/Tools/HCTOOLS/source/evtrpt.pl
Size

6KB
MD5

0149acb962818da6d82bbd877384d314
SHA1

57e717c265b58ca3bf18c4053a3bb2553346533f
SHA256

1c35e498b9ea169a3ac4fbb7b6fb63a84b21d8d85a9ca17a4b44bcc1c2ad18ec
SHA512

e538b1e733780bb559169340118811a6a37d4afab4a96495d5afec583e91b8ebb7beb225d6e64f1164989f787aa2fa8a0ac843992a9b50c2eb47d57f7c70bba1

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 13 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\pl_auto_file\shell\open\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\pl_auto_file\shell\edit\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\pl_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\.pl	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\.pl\ = "pl_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\pl_auto_file\shell\edit	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\pl_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\pl_auto_file\shell\open	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\pl_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\pl_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000_CLASSES\pl_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1980 wrote to memory of 1176	1980	cmd.exe	rundll32.exe
PID 1980 wrote to memory of 1176	1980	cmd.exe	rundll32.exe
PID 1980 wrote to memory of 1176	1980	cmd.exe	rundll32.exe
PID 1176 wrote to memory of 560	1176	rundll32.exe	NOTEPAD.EXE
PID 1176 wrote to memory of 560	1176	rundll32.exe	NOTEPAD.EXE
PID 1176 wrote to memory of 560	1176	rundll32.exe	NOTEPAD.EXE

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\APT-Hunter-master\Tools\HCTOOLS\source\evtrpt.pl
1⤵
- Suspicious use of WriteProcessMemory
PID:1980

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\APT-Hunter-master\Tools\HCTOOLS\source\evtrpt.pl
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1176

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\APT-Hunter-master\Tools\HCTOOLS\source\evtrpt.pl
3⤵
PID:560

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/560-86-0x0000000000000000-mapping.dmp

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memory/1176-81-0x0000000000000000-mapping.dmp

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memory/1980-54-0x000007FEFC2F1000-0x000007FEFC2F3000-memory.dmp

Filesize
8KB

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