d17658c7bf8c23219b52fa871a7899c9e32039977a2aa69f82d5ad393a45d2f2

Analysis

max time kernel
77s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2022 21:52

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General

Target

Fortnite.exe
Size

88KB
MD5

03c214ed5ed9cf06d1268c7ea3d5c5e0
SHA1

3d9a14b6868dc6310d404f359125cf9da58014ba
SHA256

d17658c7bf8c23219b52fa871a7899c9e32039977a2aa69f82d5ad393a45d2f2
SHA512

6bcad960064f69096527dc3fb575fe09e594defeedfa11cdd981ffbab7e5c6801eb84d6bfd334f411388eda4f7b0f575b633f2c8f50d290e8a78bfa9953b9f69
SSDEEP

1536:zj7ftfkS5g9YOms+gZcQipICdXkNDqLLZX9lItVGL++eIOlnToIfwwzOh:z/FfHgTWmCRkGbKGLeNTBfwn

Score

5^/10

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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\wallpaper.jpg"	reg.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4644 wrote to memory of 2840	4644	Fortnite.exe	82
PID 4644 wrote to memory of 2840	4644	Fortnite.exe	82
PID 2840 wrote to memory of 2040	2840	cmd.exe	83
PID 2840 wrote to memory of 2040	2840	cmd.exe	83
PID 2840 wrote to memory of 3476	2840	cmd.exe	84
PID 2840 wrote to memory of 3476	2840	cmd.exe	84
PID 2840 wrote to memory of 1392	2840	cmd.exe	85
PID 2840 wrote to memory of 1392	2840	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\Fortnite.exe
"C:\Users\Admin\AppData\Local\Temp\Fortnite.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4644
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\81C7.tmp\81C8.tmp\81C9.bat C:\Users\Admin\AppData\Local\Temp\Fortnite.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2840
- - C:\Windows\system32\curl.exe
    curl -o "C:\Users\Admin\Pictures\wallpaper.jpg" "https://www.ytflash.com/wp-content/uploads/2016/05/3.jpg"
    3⤵
    PID:2040
- - C:\Windows\system32\reg.exe
    reg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Admin\Pictures\wallpaper.jpg" /f
    3⤵
    - Sets desktop wallpaper using registry
    PID:3476
- - C:\Windows\system32\rundll32.exe
    RUNDLL32.EXE USER32.DLL,UpdatePerUserSystemParameters
    3⤵
    PID:1392

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact