f909ebd511da9da6f365d64c03a65ccd7ab6c25bbeec8734d6a860314e6d34eb

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 23:12

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General

Target

BepInEx/cache/harmony_interop_cache.dat
Size

1KB
MD5

af1df7997eb86264a2f1b193c8b75407
SHA1

5ed3ce1ea30994fa3a513ce5ee67b090dbf25bf1
SHA256

970f7b6b3be4528579864274d0f2998b4e55786b56a7b92573bf92cd6d5c157e
SHA512

b0d48bcb707ad42d2533a23231f1cb3691f23272ed2249e022102166503f8fe64792958c4e0314b9fca9c525334ff0a5a3d30359e698249a49a56c21da0f61fd

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-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\dat_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.dat	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.dat\ = "dat_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\dat_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\dat_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\dat_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\dat_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2716	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2716	AcroRd32.exe
2716	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2296	2384	cmd.exe	18
PID 2384 wrote to memory of 2296	2384	cmd.exe	18
PID 2384 wrote to memory of 2296	2384	cmd.exe	18
PID 2296 wrote to memory of 2716	2296	rundll32.exe	30
PID 2296 wrote to memory of 2716	2296	rundll32.exe	30
PID 2296 wrote to memory of 2716	2296	rundll32.exe	30
PID 2296 wrote to memory of 2716	2296	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\BepInEx\cache\harmony_interop_cache.dat
1⤵
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\BepInEx\cache\harmony_interop_cache.dat
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2296
- - 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\BepInEx\cache\harmony_interop_cache.dat"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2716

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

Windows 7 deprecation

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