cf4ace71e2fb09825dca8f3a1e0180708cd62050561d733027cc1d6b46d184a4

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
07-03-2024 18:25

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General

Target

vbug-master/README.md
Size

1KB
MD5

b9e8b90e59a0dc3dee26da848a3923ff
SHA1

bd4b86b5969a8dfc5e029b144879763d40025226
SHA256

335b434c4ad7e1ddeda7545c92264d48e9dc4196e652097cab9775fa75867ad6
SHA512

d5be56639d55a3e019c128003d64480e4594426da1cba7ac6f4f81c28c471eed340de5427cf28765a9f60be60454e91f18aed99fb641206e0c9ab0cc6a811531

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-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.md\ = "md_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\md_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\md_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\md_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\md_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.md	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\md_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\md_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2228	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2228	AcroRd32.exe
2228	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 2648	2916	cmd.exe	29
PID 2916 wrote to memory of 2648	2916	cmd.exe	29
PID 2916 wrote to memory of 2648	2916	cmd.exe	29
PID 2648 wrote to memory of 2228	2648	rundll32.exe	30
PID 2648 wrote to memory of 2228	2648	rundll32.exe	30
PID 2648 wrote to memory of 2228	2648	rundll32.exe	30
PID 2648 wrote to memory of 2228	2648	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\vbug-master\README.md
1⤵
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\vbug-master\README.md
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2648
- - 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\vbug-master\README.md"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2228

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
8ba96ffd698bd212b8b0467774f0d3aa

SHA1
67f829deec6371a24076abbf68d3d5b7e6f822b1

SHA256
97e2abdfab52745097c2f097e4f792e492770591b63307c961fdc332552a614a

SHA512
fd622dfd3d5de9305997023f96e8f555cda90ec71723d1f5b490a19b7218837df32e8ca324f1dccc368d215c1230be8ce76cc58e6e0bcaab31ecb70cf0e602ba

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