7635079472f751071c32a41949affd5f1e70a9f01c173f8e1ba0ae41302ea97e

Analysis

max time kernel
102s
max time network
50s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 08:09

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General

Target

RJ01082861-PC/www/audio/bgm/BGM_Futari.rpgmvo
Size

6.0MB
MD5

8c7c82141d17cea62ee05b8d35afb586
SHA1

8b7fb814b865aea5388443bde15368856e7f54af
SHA256

5448f7defe917a4fd272a4046dcbb91c98a3be65321ba08235edd30423f73c25
SHA512

528bfef0a7b7859046b047e46e2c2f3299a21a8e099c19399ff554fcc94627d37a345b67535574f82fdaf603f1c7da072694cebaccf675095e2b2e2830727157
SSDEEP

98304:PNQlsSWUs/JRcVA5cvhBsiwFoICpGQd8hhX1gqz:OyUcyvhBdwxiGDHbz

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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\rpgmvo_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\rpgmvo_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.rpgmvo	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\rpgmvo_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\rpgmvo_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.rpgmvo\ = "rpgmvo_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\rpgmvo_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\rpgmvo_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2604	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2604	AcroRd32.exe
2604	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 908 wrote to memory of 2636	908	cmd.exe	29
PID 908 wrote to memory of 2636	908	cmd.exe	29
PID 908 wrote to memory of 2636	908	cmd.exe	29
PID 2636 wrote to memory of 2604	2636	rundll32.exe	32
PID 2636 wrote to memory of 2604	2636	rundll32.exe	32
PID 2636 wrote to memory of 2604	2636	rundll32.exe	32
PID 2636 wrote to memory of 2604	2636	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\RJ01082861-PC\www\audio\bgm\BGM_Futari.rpgmvo
1⤵
- Suspicious use of WriteProcessMemory
PID:908
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\RJ01082861-PC\www\audio\bgm\BGM_Futari.rpgmvo
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2636
- - 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\RJ01082861-PC\www\audio\bgm\BGM_Futari.rpgmvo"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2604

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
9f266570c52c681be07b01a59ca9ba6d

SHA1
e85bf0e5bcf658179eed89a55a392f04b5d46f55

SHA256
a32b6b6a881748dd0fb3f007441aa66ae479eed099ad5921fa779d8d7fba5913

SHA512
a16ef1cc9ee616c3904979f6099a7bd283667141c6648614d0c7f27ccc6fe673edcbd0990067212776376f6ace2d7e538615d789da02041a4c4900fc1472fece

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