fatalrat | 62733648b49d1047d165241cd413a7c15ad3231890b7d5034b85bd42b7daf7cb

General

Target

62733648b49d1047d165241cd413a7c15ad3231890b7d5034b85bd42b7daf7cb.dll
Size

1.3MB
MD5

22bead2bf159f53d2b21e46659b1b80c
SHA1

69b150703d948c56d179b18b5d0c0ebe37ec40f4
SHA256

62733648b49d1047d165241cd413a7c15ad3231890b7d5034b85bd42b7daf7cb
SHA512

e8c065138f2527bfd3d6055dc70449d041026957a71baf5a0a4f4111f570bc637d5040012118ae658d85616ac5a0e52206d3795187ac91316814503c9f3c8b79
SSDEEP

24576:ft8lUXMfdZFwH4ucgkrJiu+72qLs9qOet1Wz6f99tHP7F6X8VZH:fqXSY3uu+72Es9VeDW+R+o

Score

10^/10

fatalrat gh0strat infostealer rat

Malware Config

Signatures

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

Gh0st RAT payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2036-2-0x0000000000400000-0x0000000000442000-memory.dmp	family_gh0strat
behavioral1/memory/2036-4-0x0000000010000000-0x00000000103DD000-memory.dmp	family_gh0strat
behavioral1/memory/2036-12-0x0000000010000000-0x00000000103DD000-memory.dmp	family_gh0strat
behavioral1/memory/2036-6-0x0000000010000000-0x00000000103DD000-memory.dmp	family_gh0strat
behavioral1/memory/2036-1-0x0000000010000000-0x00000000103DD000-memory.dmp	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Fatal Rat payload 5 IoCs

rat infostealer

Processes:

resource	yara_rule
behavioral1/memory/2036-2-0x0000000000400000-0x0000000000442000-memory.dmp	fatalrat
behavioral1/memory/2036-4-0x0000000010000000-0x00000000103DD000-memory.dmp	fatalrat
behavioral1/memory/2036-12-0x0000000010000000-0x00000000103DD000-memory.dmp	fatalrat
behavioral1/memory/2036-6-0x0000000010000000-0x00000000103DD000-memory.dmp	fatalrat
behavioral1/memory/2036-1-0x0000000010000000-0x00000000103DD000-memory.dmp	fatalrat

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow	pid	Process
2	2036	rundll32.exe

Executes dropped EXE 1 IoCs

Processes:

Svwxya.exe

pid	Process
2580	Svwxya.exe

Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\rundll32.exe	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

rundll32.exe

pid	Process
2036	rundll32.exe
2036	rundll32.exe

Drops file in Windows directory 2 IoCs

Processes:

rundll32.exe

description	ioc	Process
File created	C:\Windows\Svwxya.exe	rundll32.exe
File opened for modification	C:\Windows\Svwxya.exe	rundll32.exe

Kills process with taskkill 1 IoCs

evasion

Processes:

taskkill.exe

pid	Process
2556	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid	Process
2036	rundll32.exe
2036	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rundll32.exetaskkill.exe

description	pid	Process
Token: SeDebugPrivilege	2036	rundll32.exe
Token: SeDebugPrivilege	2556	taskkill.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

rundll32.exe

pid	Process
2036	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 2848 wrote to memory of 2036	2848	rundll32.exe	16
PID 2848 wrote to memory of 2036	2848	rundll32.exe	16
PID 2848 wrote to memory of 2036	2848	rundll32.exe	16
PID 2848 wrote to memory of 2036	2848	rundll32.exe	16
PID 2848 wrote to memory of 2036	2848	rundll32.exe	16
PID 2848 wrote to memory of 2036	2848	rundll32.exe	16
PID 2848 wrote to memory of 2036	2848	rundll32.exe	16
PID 2036 wrote to memory of 2556	2036	rundll32.exe	22
PID 2036 wrote to memory of 2556	2036	rundll32.exe	22
PID 2036 wrote to memory of 2556	2036	rundll32.exe	22
PID 2036 wrote to memory of 2556	2036	rundll32.exe	22

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\62733648b49d1047d165241cd413a7c15ad3231890b7d5034b85bd42b7daf7cb.dll,#1
1⤵
- Blocklisted process makes network request
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im rundll32.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2556

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\62733648b49d1047d165241cd413a7c15ad3231890b7d5034b85bd42b7daf7cb.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2848

C:\Windows\Svwxya.exe
C:\Windows\Svwxya.exe
1⤵
- Executes dropped EXE
PID:2580

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\Svwxya.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2036-0-0x0000000010000000-0x00000000103DD000-memory.dmp

Filesize
3.9MB

Download
memory/2036-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2036-4-0x0000000010000000-0x00000000103DD000-memory.dmp

Filesize
3.9MB

Download
memory/2036-12-0x0000000010000000-0x00000000103DD000-memory.dmp

Filesize
3.9MB

Download
memory/2036-6-0x0000000010000000-0x00000000103DD000-memory.dmp

Filesize
3.9MB

Download
memory/2036-1-0x0000000010000000-0x00000000103DD000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads