fatalrat | 032fa2a25fe3191577ef3e046b524d1af6d7a94619603309a36d8746f02a8238

Analysis

max time kernel
122s
max time network
146s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12-03-2024 20:43

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General

Target

tmp.exe
Size

192KB
MD5

35c9b6da794925ee797ce0f6aff3b65b
SHA1

8b2b5d61fc207ffc1483af64da93b61ea6f822f3
SHA256

032fa2a25fe3191577ef3e046b524d1af6d7a94619603309a36d8746f02a8238
SHA512

bcc4576d8f61a02711823e0cc66d9e008006335a28ead8b39cbe5459cf37c88b14c5aa086467c7a3cbb0c8f9f34197fcc30996dda3fc4a030949bc72599c1ecf
SSDEEP

3072:T1ltd5LZseWDzoPZ6WS6BLfvgaSlpcD+05f:NSzkPDNGEf

Score

10^/10

fatalrat infostealer rat

Malware Config

Signatures

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

Fatal Rat payload 2 IoCs

rat infostealer

Processes:

resource	yara_rule
behavioral1/memory/1812-0-0x0000000010000000-0x000000001002A000-memory.dmp	fatalrat
behavioral1/memory/2540-15-0x0000000010000000-0x000000001002A000-memory.dmp	fatalrat

Executes dropped EXE 1 IoCs

Processes:

tmp.exe

pid process

2540 tmp.exe
Loads dropped DLL 2 IoCs

Processes:

tmp.exe

pid process

1812 tmp.exe
1812 tmp.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1812	tmp.exe
1812	tmp.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

tmp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	tmp.exe

Suspicious behavior: EnumeratesProcesses 51 IoCs

Processes:

tmp.exe

pid	process
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe
2540	tmp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.exetmp.exe

description pid process

Token: SeDebugPrivilege 1812 tmp.exe
Token: SeDebugPrivilege 2540 tmp.exe

description	pid	process
Token: SeDebugPrivilege	1812	tmp.exe
Token: SeDebugPrivilege	2540	tmp.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 1812 wrote to memory of 2540	1812	tmp.exe	tmp.exe
PID 1812 wrote to memory of 2540	1812	tmp.exe	tmp.exe
PID 1812 wrote to memory of 2540	1812	tmp.exe	tmp.exe
PID 1812 wrote to memory of 2540	1812	tmp.exe	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Users\Admin\AppData\Local\tmp.exe
  "C:\Users\Admin\AppData\Local\tmp.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\tmp.exe

Filesize
192KB

MD5
35c9b6da794925ee797ce0f6aff3b65b

SHA1
8b2b5d61fc207ffc1483af64da93b61ea6f822f3

SHA256
032fa2a25fe3191577ef3e046b524d1af6d7a94619603309a36d8746f02a8238

SHA512
bcc4576d8f61a02711823e0cc66d9e008006335a28ead8b39cbe5459cf37c88b14c5aa086467c7a3cbb0c8f9f34197fcc30996dda3fc4a030949bc72599c1ecf

Download Submit
memory/1812-0-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download
memory/2540-15-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download