fatalrat | 5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81

Analysis

max time kernel
136s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20231127-en
resource tags

arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
submitted
10/12/2023, 11:02

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General

Target

5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81.exe
Size

1.9MB
MD5

7a6b6fbd4fa4514b972896477062ab23
SHA1

d3f091e240ec96cf7f02e59003229cfce99b9801
SHA256

5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81
SHA512

77a55089c9e8809ec7e58e490b65364e1bce05897bf3d8b425f0ab3de7e4e530fc31310cc2a82b36ddaa7caa73d9ab9a3abf3806657da3ee2c9bf9715e442b59
SSDEEP

49152:S7QMGIEr2hyyU/sQaIbd/HA/XXO5YbQBIEbrGygStXBqxoXbrSIQ5kBG8qYOpUX:S5GIE6XU/sQDd4/e5YkBIEbrGygSZr9l

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 1 IoCs

rat infostealer

resource	yara_rule
behavioral2/memory/4536-2-0x0000000010000000-0x000000001002A000-memory.dmp	fatalrat

Executes dropped EXE 2 IoCs

pid	Process
1672	msdtc.exe
4148	msdtc.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\SysWOW64\1.bin	5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81.exe
File opened for modification	C:\WINDOWS\SysWOW64\1.bin	msdtc.exe
File opened for modification	C:\WINDOWS\SysWOW64\1.bin	msdtc.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

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

Modifies data under HKEY_USERS 21 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie	msdtc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableLockWorkstation = "1"	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet	msdtc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableLockWorkstation = "1"	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\UmRdqServce	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies	msdtc.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	msdtc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\UmRdqServce\InstallTime = "2023-12-10 11:03"	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	msdtc.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\UmRdqServce\Group = "Fatal"	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	msdtc.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\UmRdqServce	msdtc.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe
4148	msdtc.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4536	5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4536	5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81.exe
Token: SeDebugPrivilege	1672	msdtc.exe
Token: SeDebugPrivilege	4148	msdtc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4536	5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81.exe
1672	msdtc.exe
4148	msdtc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 4148	1672	msdtc.exe	93
PID 1672 wrote to memory of 4148	1672	msdtc.exe	93
PID 1672 wrote to memory of 4148	1672	msdtc.exe	93

C:\Users\Admin\AppData\Local\Temp\5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81.exe
"C:\Users\Admin\AppData\Local\Temp\5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81.exe"
1⤵
- Drops file in System32 directory
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4536

C:\ProgramData\msdtc.exe
C:\ProgramData\msdtc.exe
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1672
- C:\ProgramData\msdtc.exe
  C:\ProgramData\msdtc.exe Win7
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4148

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

Replay Monitor

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Downloads

C:\ProgramData\msdtc.exe

Filesize
1.9MB

MD5
7a6b6fbd4fa4514b972896477062ab23

SHA1
d3f091e240ec96cf7f02e59003229cfce99b9801

SHA256
5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81

SHA512
77a55089c9e8809ec7e58e490b65364e1bce05897bf3d8b425f0ab3de7e4e530fc31310cc2a82b36ddaa7caa73d9ab9a3abf3806657da3ee2c9bf9715e442b59

Download Submit
C:\ProgramData\msdtc.exe

Filesize
1.9MB

MD5
7a6b6fbd4fa4514b972896477062ab23

SHA1
d3f091e240ec96cf7f02e59003229cfce99b9801

SHA256
5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81

SHA512
77a55089c9e8809ec7e58e490b65364e1bce05897bf3d8b425f0ab3de7e4e530fc31310cc2a82b36ddaa7caa73d9ab9a3abf3806657da3ee2c9bf9715e442b59

Download Submit
C:\ProgramData\msdtc.exe

Filesize
1.9MB

MD5
7a6b6fbd4fa4514b972896477062ab23

SHA1
d3f091e240ec96cf7f02e59003229cfce99b9801

SHA256
5dd93e48b8f255126c1dfa996c2ef2c8ddc8eb29323945009ba7a7f8c32c3f81

SHA512
77a55089c9e8809ec7e58e490b65364e1bce05897bf3d8b425f0ab3de7e4e530fc31310cc2a82b36ddaa7caa73d9ab9a3abf3806657da3ee2c9bf9715e442b59

Download Submit
C:\WINDOWS\SysWOW64\1.bin

Filesize
209KB

MD5
37f2e3e7a313b58925f1a0fdd69cb563

SHA1
5042b795955a5e04fe0b7d2430f28e196f5de95e

SHA256
40773f94ff0dcbd2047570ddbf1d189a071c237a189ac4ed61c3ab956dbccf44

SHA512
533294585e0a1608e8251ee626d27188d1813710a975b51d4b47fe37820a4676afbaf81b21953cda57180712a1d845098d0de2193fcd71f96fcadd31ebfaeca0

Download Submit
C:\WINDOWS\SysWOW64\1.bin

Filesize
209KB

MD5
37f2e3e7a313b58925f1a0fdd69cb563

SHA1
5042b795955a5e04fe0b7d2430f28e196f5de95e

SHA256
40773f94ff0dcbd2047570ddbf1d189a071c237a189ac4ed61c3ab956dbccf44

SHA512
533294585e0a1608e8251ee626d27188d1813710a975b51d4b47fe37820a4676afbaf81b21953cda57180712a1d845098d0de2193fcd71f96fcadd31ebfaeca0

Download Submit
memory/4536-1-0x0000000003210000-0x0000000003245000-memory.dmp

Filesize
212KB

Download
memory/4536-2-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download