fatalrat | 5cc0ab81dcf30e350d280d54db988102e27d16272c46cec89668aac7ecc6341d

Analysis

max time kernel
104s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2025, 16:42

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General

Target

5cc0ab81dcf30e350d280d54db988102e27d16272c46cec89668aac7ecc6341d.dll
Size

208KB
MD5

baa9038906373abb1d479471912d9c1a
SHA1

c62b6a79c6cd80517ade142241ace16241466320
SHA256

5cc0ab81dcf30e350d280d54db988102e27d16272c46cec89668aac7ecc6341d
SHA512

fc4392a3658898ea50c63eb692ef3edba9ba21423e47d7fea9524e1478122c0e169cb435398f90658b5c4e4a00822711fb3aae485d9ab86a2fe4bbb63e349588
SSDEEP

3072:rtcCRvZxPKOt5qxtGqGAB+/muK6bWbL2hOhSl5o/F4oYBh:BcCRhIJxQ5AB0mmUG8YB

Score

10^/10

fatalrat discovery infostealer persistence rat stealer trojan

Malware Config

Signatures

FatalRat
FatalRat is a modular infostealer family written in C++ first appearing in June 2021.
stealer trojan fatalrat
Fatalrat family
fatalrat

Fatal Rat payload 1 IoCs

rat infostealer

resource	yara_rule
behavioral2/memory/5076-0-0x00000000007C0000-0x00000000007EB000-memory.dmp	fatalrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MyProgram = "C:\\Windows\\SysWOW64\\rundll32.exe"	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5076	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3364 wrote to memory of 5076	3364	rundll32.exe	83
PID 3364 wrote to memory of 5076	3364	rundll32.exe	83
PID 3364 wrote to memory of 5076	3364	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5cc0ab81dcf30e350d280d54db988102e27d16272c46cec89668aac7ecc6341d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5cc0ab81dcf30e350d280d54db988102e27d16272c46cec89668aac7ecc6341d.dll,#1
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/5076-0-0x00000000007C0000-0x00000000007EB000-memory.dmp

Filesize
172KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads