40dca8cc9156a448082670599d1779339738028a616b3c1047178cf0a0baa6e5

Analysis

max time kernel
839s
max time network
845s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 12:36

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General

Target

doc/pclxps/ghostpdl.tex
Size

17KB
MD5

211a894e2d21512593597eecbf3b3c58
SHA1

5dd96394bddfdada2b391248542ae37541a8f414
SHA256

ce91de7d4ce957e272683aec46b7ebc62ca41f888bf461b221c54b224d02fdf7
SHA512

f8bd6aac1fe100e51091fcdf98106cb200bd7b4290f73648ce22130203ffd5832187423b8476b654fd3b3a02c2301014f46884e39d4610672d987960aa9a1677
SSDEEP

384:/mO/V/vw1CbCEwB1ktPWGHzz4MlFo6kRsvoW3jwzkivuODFm/aW631tyKmY:TVtI/GHzz4koTRsvoArmynY

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\tex_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\tex_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\tex_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.tex\ = "tex_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\tex_auto_file\shell\Read	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\.tex	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\tex_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\tex_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
2548	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2548	AcroRd32.exe
2548	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2552	1716	cmd.exe	29
PID 1716 wrote to memory of 2552	1716	cmd.exe	29
PID 1716 wrote to memory of 2552	1716	cmd.exe	29
PID 2552 wrote to memory of 2548	2552	rundll32.exe	30
PID 2552 wrote to memory of 2548	2552	rundll32.exe	30
PID 2552 wrote to memory of 2548	2552	rundll32.exe	30
PID 2552 wrote to memory of 2548	2552	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\doc\pclxps\ghostpdl.tex
1⤵
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\doc\pclxps\ghostpdl.tex
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2552
- - 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\doc\pclxps\ghostpdl.tex"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2548

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

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Downloads

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

Filesize
3KB

MD5
db8e25d74afc10927e5427271d2b6d5c

SHA1
b37db90201b3b0ba4143dca9a5dee0f0d84468b3

SHA256
b743a6c23c3a344c985102623c80de8aa968640326bff168c5ba175cbfdd68e6

SHA512
6bd4a6a15578f475000a27f80f02cc87a912e4c7df5489119a5d7a23662edd79f780177830270c175b25c36b724a8ad6a3a72bd9386ab73e9e06b2f40149d14b

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