d7dafb1954e6216b222a0a74a7b8f3d9ab12a4101699a93df8cdf8e7dfc348cb

Analysis

max time kernel
1561s
max time network
1561s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
02/03/2024, 14:36

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General

Target
SP/installscript.vdf
Size 631B
Sample240302-ryqqlsee76
SHA256 270d2a3eef463b768ca4368e62444a7ccaff4e98c71f2ca05b721bfef2e03e05
MD5 1a792aff29d6f07d1c3381634ba6baff
SHA1 f2c7bb49ccaf63ffcd38d06dd2d51095b08d4344
SHA512 3971dee038f1cd1aacf9151196a53e2bfbf4bc9a665f60ae79309b5544d81a733e3f7b9db422e17c5a95ba2930248be408e6fbf877f8eb12235277f46af5a4f1
MD5 SHA1 SHA512

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\vdf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\vdf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\vdf_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\vdf_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.vdf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.vdf\ = "vdf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\vdf_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\vdf_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
2588	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2588	AcroRd32.exe
2588	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2604	2364	cmd.exe	29
PID 2364 wrote to memory of 2604	2364	cmd.exe	29
PID 2364 wrote to memory of 2604	2364	cmd.exe	29
PID 2604 wrote to memory of 2588	2604	rundll32.exe	30
PID 2604 wrote to memory of 2588	2604	rundll32.exe	30
PID 2604 wrote to memory of 2588	2604	rundll32.exe	30
PID 2604 wrote to memory of 2588	2604	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\SP\installscript.vdf
1⤵
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\SP\installscript.vdf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2604
- - 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\SP\installscript.vdf"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2588

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

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 7e43af38b7c6df7009c907f3816eb81aa8e30f2a569518c62344fbfe2d6a9de1
MD5 496eabe93fbfd065a7de3737639c23e5
SHA1 79fe768b8d0b130ea80b5cfdbd43535d5cdc2a79
SHA512 2ade5e12f08de917bfb340cacea47ee612d8f756aa14602a6897a9953b48fe1f98685c943b303c0a3a15cc4f2da85e621577fc108a04ecc579ae6c0d3fc2f568
MD5 SHA1 SHA512

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