fatalrat | 50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979

General

Target

50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979.exe
Size

868KB
MD5

4f1b748ea4b5b97209b85126eb89d1eb
SHA1

17fc1483d5aadfad83f16e5b2ec32af777db9121
SHA256

50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979
SHA512

6aaa898098f7c88dc04d179cb1df3f16b109372ab6f627aef6b4f167ca0b62a924beb25ace44516d175b6b3346ada9e384f85d87e3513bc3d12d6ec75b8e2d18
SSDEEP

24576:/VtCLSEynMWnnlxZjXGUijM/OFa8j8jUduL0XHoIfdoPjKElxREqFvTTNH:NtaROMWnnlxZjWAOFa8j8jUduLkoIfdM

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 2 IoCs

rat infostealer

Processes:

resource	yara_rule
behavioral2/memory/1800-0-0x0000000010000000-0x000000001002A000-memory.dmp	fatalrat
behavioral2/memory/1656-9-0x0000000010000000-0x000000001002A000-memory.dmp	fatalrat

Executes dropped EXE 2 IoCs

Processes:

Nopqrs.exeNopqrs.exe

pid process

1656 Nopqrs.exe
1120 Nopqrs.exe

pid	process
1656	Nopqrs.exe
1120	Nopqrs.exe

Drops file in System32 directory 13 IoCs

Processes:

Nopqrs.exeNopqrs.exe

description	ioc	process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE\getip[1].htm	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\0DA515F703BB9B49479E8697ADB0B955_786387CC77858B88BA3234B304062475	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CF14D1855652602540DFCFECD21854DB_47530B00274A9A7AF822523F21AAA8A1	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\0DA515F703BB9B49479E8697ADB0B955_786387CC77858B88BA3234B304062475	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CF14D1855652602540DFCFECD21854DB_47530B00274A9A7AF822523F21AAA8A1	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	Nopqrs.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	Nopqrs.exe

Drops file in Program Files directory 4 IoCs

Processes:

50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979.exeNopqrs.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\AppPatch\Nopqrs.exe	50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979.exe
File opened for modification	C:\Program Files (x86)\AppPatch\Nopqrs.exe	Nopqrs.exe
File created	C:\Program Files (x86)\AppPatch\Nopqrs.exe	Nopqrs.exe
File created	C:\Program Files (x86)\AppPatch\Nopqrs.exe	50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979.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:

50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979.exeNopqrs.exeNopqrs.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Nopqrs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Nopqrs.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:

Nopqrs.exe

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

Modifies data under HKEY_USERS 38 IoCs

Processes:

Nopqrs.exeNopqrs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	Nopqrs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Nopqrs Uvwxyabc	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\Nopqrs Uvwxyabc	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	Nopqrs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Nopqrs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\Nopqrs Uvwxyabc\Group = "Fatal"	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Nopqrs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableLockWorkstation = "1"	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	Nopqrs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	Nopqrs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	Nopqrs.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\Nopqrs Uvwxyabc\InstallTime = "2024-08-12 14:32"	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies	Nopqrs.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableLockWorkstation = "1"	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	Nopqrs.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie	Nopqrs.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

Nopqrs.exe

pid	process
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe
1120	Nopqrs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979.exeNopqrs.exeNopqrs.exe

description	pid	process
Token: SeDebugPrivilege	1800	50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979.exe
Token: SeDebugPrivilege	1656	Nopqrs.exe
Token: SeDebugPrivilege	1120	Nopqrs.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Nopqrs.exe

description	pid	process	target process
PID 1656 wrote to memory of 1120	1656	Nopqrs.exe	Nopqrs.exe
PID 1656 wrote to memory of 1120	1656	Nopqrs.exe	Nopqrs.exe
PID 1656 wrote to memory of 1120	1656	Nopqrs.exe	Nopqrs.exe

C:\Users\Admin\AppData\Local\Temp\50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979.exe
"C:\Users\Admin\AppData\Local\Temp\50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1800

C:\Program Files (x86)\AppPatch\Nopqrs.exe
"C:\Program Files (x86)\AppPatch\Nopqrs.exe"
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Program Files (x86)\AppPatch\Nopqrs.exe
  "C:\Program Files (x86)\AppPatch\Nopqrs.exe" Win7
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Program Files 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:1120

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:\Program Files (x86)\AppPatch\Nopqrs.exe

Filesize
868KB

MD5
4f1b748ea4b5b97209b85126eb89d1eb

SHA1
17fc1483d5aadfad83f16e5b2ec32af777db9121

SHA256
50b4945478aef7db5e7cfd2681d855d0e984e3e219181edae95839353b778979

SHA512
6aaa898098f7c88dc04d179cb1df3f16b109372ab6f627aef6b4f167ca0b62a924beb25ace44516d175b6b3346ada9e384f85d87e3513bc3d12d6ec75b8e2d18

Download Submit
memory/1656-9-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download
memory/1800-0-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads