0ecfa9e9370f383a669aad9db9a28109c24226496b519e7383713c7c1deaf861

Analysis

max time kernel
119s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-03-2024 17:01

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General

Target

Chronos/src/utils/__pycache__/accountNuker.cpython-310.pyc
Size

702B
MD5

6e6f8657026fa0e48a64af0b978d9544
SHA1

d0c81990ee5c8045646d05e1fdfebf02c112dcb3
SHA256

3423ceec0289e99a3ef6e473b5b391a73b6790b8f0707834060cbf1acb480c6d
SHA512

e55edd5cbd5f5082a62d026aa2dfa43eaba4523f725fd92911564f59f912825d7112b3311ef93743c84cebfd71eca698c94b101b18aed08f385fdf3a417423cc

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
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_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-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2640 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2640 AcroRd32.exe
2640 AcroRd32.exe

pid	process
2640	AcroRd32.exe

pid	process
2640	AcroRd32.exe
2640	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1736 wrote to memory of 2148	1736	cmd.exe	rundll32.exe
PID 1736 wrote to memory of 2148	1736	cmd.exe	rundll32.exe
PID 1736 wrote to memory of 2148	1736	cmd.exe	rundll32.exe
PID 2148 wrote to memory of 2640	2148	rundll32.exe	AcroRd32.exe
PID 2148 wrote to memory of 2640	2148	rundll32.exe	AcroRd32.exe
PID 2148 wrote to memory of 2640	2148	rundll32.exe	AcroRd32.exe
PID 2148 wrote to memory of 2640	2148	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Chronos\src\utils\__pycache__\accountNuker.cpython-310.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1736

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Chronos\src\utils\__pycache__\accountNuker.cpython-310.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2148

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\Chronos\src\utils\__pycache__\accountNuker.cpython-310.pyc"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2640

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

Replay Monitor

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Downloads

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

MD5
1fb124b9aea75174ff3926749eebbc4d

SHA1
2ba1bbee5a65cf931d51df04a50740dcba31907e

SHA256
82c2065384e741f1e28818ffe6f1faa3d075955db90192ac466217cd197fc6ff

SHA512
c4781f28c01848e75a01677985b2ac4787e63a7350942650c340ab1b6339ddf19c25a3cbe9eb5fd5db578d223ab80c0e5f6f05680f88f52f7dd1d5d3daa10f2a

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