acaf609bb1ab070117d4fc399f86e23f3a4ab727513bab3f9a4ea6ef267c0f58

Analysis

max time kernel
148s
max time network
132s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260618-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
25/06/2026, 18:06

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General

Target
robux.exe
Size 1.7MB
Sample260625-wp64fses8m
SHA256 acaf609bb1ab070117d4fc399f86e23f3a4ab727513bab3f9a4ea6ef267c0f58
MD5 cf556edad43f3d0296cdad2a643bd186
SHA1 b33d43d7bd1ea5eeea0c02548664d842f3fefbcb
SHA512 f62cd2214e412ac69d7d637d7549165bd3cffa221ccd0a458e1c5c45580413d354d162f2d6c56edb96c22e27561fd452934c4c0c266a9c9650988967e478fc13
SSDEEP 24576:rePEC/abY66GAvye3Dja3gmOVmn/26La2IiOg8vPoPidc+UJQrrpMrhP39zPJS63:TPY+AKOH4gdQ/nLa2IU8vPtyCqh/S
TLSH
T193851242D3564054D339123CB0F08F63D766ED5A43AE6BD75E91B0327EE93C829E2B85
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

defense_evasion ransomware

Malware Config

Signatures

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2882181966-868590553-1461876573-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WP_846D.tmp.bmp"	robux.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Control Panel 2 IoCs

defense_evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2882181966-868590553-1461876573-1000\Control Panel\Desktop\WallpaperStyle = "2"	robux.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2882181966-868590553-1461876573-1000\Control Panel\Desktop\TileWallpaper = "0"	robux.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\	notepad.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4320	notepad.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5868 wrote to memory of 4320	5868	robux.exe	91

C:\Users\Admin\AppData\Local\Temp\robux.exe
"C:\Users\Admin\AppData\Local\Temp\robux.exe"
1⤵
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:5868
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe" C:\Users\Admin\Desktop\README.txt
  2⤵
  - Modifies registry class
  - Opens file in notepad (likely ransom note)
  PID:4320

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

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Downloads

README.txt

Path C:\Users\Admin\Desktop\README.txt
Size 49B
SHA256 153f8dc0c2d3ebb6a067988c66019bd708e2d3c9e1accdb79beeee0541d7bdf5
MD5 ccee5628aa733c6191c0429ff0d225ce
SHA1 6006f6ced73e93b398f68cadd9a6c232719354f2
SHA512 e9f09528e562a30c7f29c2ea17f596584bd433b0d4a3b1c85f4d56c617b67b4e3563373d812d169f072c0a734fdb1194b519a60e3e0a2e3bbba6c263c001b937
MD5 SHA1 SHA512

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