460bfc0c7f4f54283bc0a80db04c664a9c382dcf53d6a5876b0add1b0163d403

Resubmissions

07-06-2024 16:57

240607-vf8p9abc8s 10

07-06-2024 16:47

240607-vag1cacc65 10

07-06-2024 06:24

240607-g52rcaag9t 10

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07-06-2024 06:24

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General

Target

TR4SH.pyc
Size

48KB
MD5

7668979f3a8e3bfb1f6606af4ab81628
SHA1

eb5637b1be97af8da3f323008be971eeb2bab6e7
SHA256

4eb471cb563f610e15443009a2cf93f0dde6e151ab0e05acfab67563e40cadbc
SHA512

78be9b5759530ca7d6e6dd484b6fdda4751126e6eefbc6d5f879a7b9a5d745200fc21799bc7021e170f53db91fd8c0ad4b2f9a5c47b4ee0f330f77d3ef4b03bc
SSDEEP

768:pxu+/nZtgH7+96XVYVxc8X+9xkIsmzw2QqCBpJS68CZxmtreQM3lU0XnW6z:fW+yVicjjTw2QqCjJJatK93BXnWW

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

description	ioc	Process
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_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	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	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file\shell\Read	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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2792	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2792	AcroRd32.exe
2792	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2624	2888	cmd.exe	29
PID 2888 wrote to memory of 2624	2888	cmd.exe	29
PID 2888 wrote to memory of 2624	2888	cmd.exe	29
PID 2624 wrote to memory of 2792	2624	rundll32.exe	30
PID 2624 wrote to memory of 2792	2624	rundll32.exe	30
PID 2624 wrote to memory of 2792	2624	rundll32.exe	30
PID 2624 wrote to memory of 2792	2624	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\TR4SH.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\TR4SH.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2624
- - 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\TR4SH.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2792

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
75f700b3e1ba35c53617fcfa83321720

SHA1
33df8e23f3a34ae1afaa9bcae7c638f87a5fb341

SHA256
9887b980bc98ab7e736181669c421c78ae83af944c82563ea4e196f3d55f6897

SHA512
19768e36fce797a32f8ae81f3965b07ebd9f3fdbffa8f1e7c9f4623e1789acb3352f9d5c2c4472be29760f3483572fbbcb9b42cf814b18b3f1fd7e7952ed1aca

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