fatalrat | 5665e5ed2ec2ea1aadc59fcced6c61e968b9973c4bd4fe4d4313d6a1eba89d86

General

Target

3dead9a7fad52cd00d189e1849111f80N.exe
Size

192KB
MD5

3dead9a7fad52cd00d189e1849111f80
SHA1

4f5fb10035a572e57f60f4932395ade339ac905f
SHA256

5665e5ed2ec2ea1aadc59fcced6c61e968b9973c4bd4fe4d4313d6a1eba89d86
SHA512

17ad9e3a0a715d30757a37aeb98abde3bf6a5718f1b70e070b4395ddc11cbc3f2785b1428e9605bc00fdac19d08b6a3de9a692630ce9b2a715e84ef978f99aab
SSDEEP

3072:ii3tgN0ys6kzHSVhJqmj+yLKoUsSlRdz/0N+lSm:+zKDmhrTG8+p

Score

10^/10

fatalrat discovery 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 3 IoCs

rat infostealer

Processes:

resource	yara_rule
behavioral2/memory/1296-1-0x0000000010000000-0x000000001002B000-memory.dmp	fatalrat
behavioral2/memory/4972-9-0x0000000010000000-0x000000001002B000-memory.dmp	fatalrat
behavioral2/memory/1296-22-0x0000000000400000-0x0000000000431000-memory.dmp	fatalrat

Executes dropped EXE 2 IoCs

Processes:

Svwxya.exeSvwxya.exe

pid process

4972 Svwxya.exe
4284 Svwxya.exe

pid	process
4972	Svwxya.exe
4284	Svwxya.exe

Drops file in Windows directory 4 IoCs

Processes:

3dead9a7fad52cd00d189e1849111f80N.exeSvwxya.exe

description	ioc	process
File created	C:\Windows\Svwxya.exe	3dead9a7fad52cd00d189e1849111f80N.exe
File opened for modification	C:\Windows\Svwxya.exe	3dead9a7fad52cd00d189e1849111f80N.exe
File opened for modification	C:\Windows\Svwxya.exe	Svwxya.exe
File created	C:\Windows\Svwxya.exe	Svwxya.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

Svwxya.exeSvwxya.exe3dead9a7fad52cd00d189e1849111f80N.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Svwxya.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Svwxya.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3dead9a7fad52cd00d189e1849111f80N.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:

Svwxya.exe

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

Modifies data under HKEY_USERS 21 IoCs

Processes:

Svwxya.exeSvwxya.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	Svwxya.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableLockWorkstation = "1"	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\Stuvwx Abcdefgh	Svwxya.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\Stuvwx Abcdefgh\Group = "Fatal"	Svwxya.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\Stuvwx Abcdefgh\InstallTime = "2024-07-25 00:31"	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	Svwxya.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableLockWorkstation = "1"	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Stuvwx Abcdefgh	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	Svwxya.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	Svwxya.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

Svwxya.exe

pid	process
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe
4284	Svwxya.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

3dead9a7fad52cd00d189e1849111f80N.exe

pid process

1296 3dead9a7fad52cd00d189e1849111f80N.exe

pid	process
1296	3dead9a7fad52cd00d189e1849111f80N.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

3dead9a7fad52cd00d189e1849111f80N.exeSvwxya.exeSvwxya.exe

description	pid	process
Token: SeDebugPrivilege	1296	3dead9a7fad52cd00d189e1849111f80N.exe
Token: SeDebugPrivilege	4972	Svwxya.exe
Token: SeDebugPrivilege	4284	Svwxya.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Svwxya.exe

description	pid	process	target process
PID 4972 wrote to memory of 4284	4972	Svwxya.exe	Svwxya.exe
PID 4972 wrote to memory of 4284	4972	Svwxya.exe	Svwxya.exe
PID 4972 wrote to memory of 4284	4972	Svwxya.exe	Svwxya.exe

C:\Users\Admin\AppData\Local\Temp\3dead9a7fad52cd00d189e1849111f80N.exe
"C:\Users\Admin\AppData\Local\Temp\3dead9a7fad52cd00d189e1849111f80N.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:1296

C:\Windows\Svwxya.exe
C:\Windows\Svwxya.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\Svwxya.exe
  C:\Windows\Svwxya.exe Win7
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Svwxya.exe

Filesize
192KB

MD5
3dead9a7fad52cd00d189e1849111f80

SHA1
4f5fb10035a572e57f60f4932395ade339ac905f

SHA256
5665e5ed2ec2ea1aadc59fcced6c61e968b9973c4bd4fe4d4313d6a1eba89d86

SHA512
17ad9e3a0a715d30757a37aeb98abde3bf6a5718f1b70e070b4395ddc11cbc3f2785b1428e9605bc00fdac19d08b6a3de9a692630ce9b2a715e84ef978f99aab

Download Submit
memory/1296-1-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/1296-5-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/1296-22-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4972-9-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads