fatalrat | 24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-12-2024 07:04

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General

Target

24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe
Size

4.5MB
MD5

0b002ffd1ba0c617cfd6f25f75d8432e
SHA1

9a102e169744d9a28e575efecadc53b9d77fb751
SHA256

24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3
SHA512

52236ec4b8d3df89a7c60937c8d886ca05285cd77e639b731075368ef6bf80f973ae978d24123127d3785c8254f718c0556dc6b55be9355c4ac77bfb88f7172b
SSDEEP

49152:9YJMpJc32PMgJjQhGp7fOU3h1hyiTrMIx7Rtpb68N54+97boAXuE+OPnmr7DvjZd:9Og51Mgr/txTbV7+6W

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
Fatalrat family
fatalrat

Fatal Rat payload 1 IoCs

rat infostealer

Processes:

resource	yara_rule
behavioral1/memory/3020-77-0x0000000000850000-0x000000000087A000-memory.dmp	fatalrat

Drops startup file 2 IoCs

Processes:

XGtMJ9.exe

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Macromedia-Packages.lnk	XGtMJ9.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Macromedia-Packages.lnk	XGtMJ9.exe

Executes dropped EXE 2 IoCs

Processes:

XGtMJ9.exeXGtMJ9.exe

pid	Process
576	XGtMJ9.exe
3020	XGtMJ9.exe

Loads dropped DLL 1 IoCs

Processes:

XGtMJ9.exe

pid	Process
3020	XGtMJ9.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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:

XGtMJ9.exeXGtMJ9.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	XGtMJ9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	XGtMJ9.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:

XGtMJ9.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	XGtMJ9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	XGtMJ9.exe

Modifies data under HKEY_USERS 6 IoCs

Processes:

cmd.exe

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached	cmd.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{6C467336-8281-4E60-8204-430CED96822D} {000214E4-0000-0000-C000-000000000046} 0xFFFF = 0100000000000000202a96708844db01	cmd.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{DFFACDC5-679F-4156-8947-C5C76BC0B67F} {ADD8BA80-002B-11D0-8F0F-00C04FD7D062} 0xFFFF = 0100000000000000808b98708844db01	cmd.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	cmd.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	cmd.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	cmd.exe

Suspicious behavior: CmdExeWriteProcessMemorySpam 2 IoCs

Processes:

XGtMJ9.exeXGtMJ9.exe

pid	Process
576	XGtMJ9.exe
3020	XGtMJ9.exe

Suspicious behavior: EnumeratesProcesses 54 IoCs

Processes:

24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exeXGtMJ9.exe

pid	Process
1672	24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe
1672	24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe
1672	24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe
3020	XGtMJ9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

XGtMJ9.exe

description	pid	Process
Token: SeDebugPrivilege	3020	XGtMJ9.exe
Token: SeDebugPrivilege	3020	XGtMJ9.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

wordpad.exeXGtMJ9.exe

pid	Process
2872	wordpad.exe
2872	wordpad.exe
2872	wordpad.exe
2872	wordpad.exe
2872	wordpad.exe
3020	XGtMJ9.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exewrite.execmd.execmd.exe

description	pid	Process	procid_target
PID 1672 wrote to memory of 2824	1672	24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe	31
PID 1672 wrote to memory of 2824	1672	24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe	31
PID 1672 wrote to memory of 2824	1672	24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe	31
PID 2824 wrote to memory of 2872	2824	write.exe	32
PID 2824 wrote to memory of 2872	2824	write.exe	32
PID 2824 wrote to memory of 2872	2824	write.exe	32
PID 2896 wrote to memory of 576	2896	cmd.exe	34
PID 2896 wrote to memory of 576	2896	cmd.exe	34
PID 2896 wrote to memory of 576	2896	cmd.exe	34
PID 2896 wrote to memory of 576	2896	cmd.exe	34
PID 1672 wrote to memory of 2972	1672	24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe	36
PID 1672 wrote to memory of 2972	1672	24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe	36
PID 1672 wrote to memory of 2972	1672	24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe	36
PID 2972 wrote to memory of 3020	2972	cmd.exe	37
PID 2972 wrote to memory of 3020	2972	cmd.exe	37
PID 2972 wrote to memory of 3020	2972	cmd.exe	37
PID 2972 wrote to memory of 3020	2972	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe
"C:\Users\Admin\AppData\Local\Temp\24b31819e09dd8eaa1c26a08c1a4e7ae55063c7ebb3dbd0273968d13a4f0d0e3.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\System32\write.exe
  "C:\Windows\System32\write.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2824
- - C:\Program Files\Windows NT\Accessories\wordpad.exe
    "C:\Program Files\Windows NT\Accessories\wordpad.exe"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2872
- C:\Windows\System32\cmd.exe
  cmd /c start "" "C:\ProgramData\XGtMJ9\XGtMJ9.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2972
- - C:\ProgramData\XGtMJ9\XGtMJ9.exe
    "C:\ProgramData\XGtMJ9\XGtMJ9.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Suspicious behavior: CmdExeWriteProcessMemorySpam
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3020

C:\Windows\system32\cmd.exe
cmd /c start C:\Users\Admin\Desktop\XGtM.lnk
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Roaming\XGtMJ9.exe
  "C:\Users\Admin\AppData\Roaming\XGtMJ9.exe" -n C:\Users\Admin\AppData\Roaming\XGtMJ.zip -d C:\Users\Admin\AppData\Roaming
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: CmdExeWriteProcessMemorySpam
  PID:576

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\XGtMJ9\VEDecoder.dll

Filesize
1.6MB

MD5
d6a3fed112ab4e6bfe32cbe220dc225d

SHA1
bb9190ee490c46959e2bc192009f7773222dfa12

SHA256
8d89d4282f514acf2d7ef3ff7a618bbd513a84538ad309f2a48bff77c202bd58

SHA512
043b866e32db62bf8deb4ad9aa896b8274813cf1e6e4e575a3afc595893b5e5265a0430f6a1010c80db955114a0f9d9c3f4e0b3ee47b3323fb2bbcda5b6b7f61

Download Submit
C:\ProgramData\XGtMJ9\XGtMJ9.exe

Filesize
508KB

MD5
a79a2e0b7f299ab2f80ee8315679baee

SHA1
43d76adbcc19e4c8b60ffba419797a22b756e927

SHA256
0a804e7efe38d6eba358781597205519b936239e9daebcdf2f71c62c6a416f5c

SHA512
f246044eb82e2d4562081b0041ba2109cbda385b335b3bf10d3408acda6ae0c605ab1a522a7f5f363dfd6417e6825ff7d2831d42b8e4440d012fdf33ec605649

Download Submit
C:\ProgramData\XGtMJ9\longlq.cl

Filesize
1.2MB

MD5
6652b3a6e7290de3f12a5f94b9b72b8c

SHA1
4702a4305f14c8437787343de339fa4f0a4b4d75

SHA256
946d9c70c3ae9d8b22530a844547494c60668a6a3b0cf4e25f84f03a0781743e

SHA512
38950c74297de0820ba606680ad74252dc0f8a4c9d46bdb73b903da55ab7b243a4ae7fa6812f026d2b4ec47b8000454e944be587cb788d592ab30d3848b77d34

Download Submit
C:\Users\Admin\AppData\Roaming\XGtMJ.zip

Filesize
684B

MD5
9d16bfd305598e022c27076d9abcee66

SHA1
f18e21ba1fc21ed1e276f992480b070b194ae097

SHA256
3933dc7701d6a1aed6f016cd5f8e1264a4ccad6378ebb7c5447a3fe6453dfb60

SHA512
bbde275e8d57c7cd8052cf8372adbf763e36177814957ea51f61c37d333c84ecea913aabb358f40aa1ca6291b0a9c9333dc44b422af9866683942c5557a8f1e5

Download Submit
C:\Users\Admin\AppData\Roaming\XGtMJ9.exe

Filesize
105KB

MD5
6b8ebc942fe392c669b0b21bc8f83a03

SHA1
18fb9645a7365ae17b8386e47bec0b5ba6f5122f

SHA256
e5a35deff01c93f658ab8c4192570ad9ae5ffaa4f5f6d1b4db99f176bf5bdbe7

SHA512
0953d528c5d07b22fa0a969c98d569cf68e58450e1fc0179ddb2068cb4c429d23044a71005fd0daebe7e0c896c5a7598c5329e4c040be9099dfb1e62a2686589

Download Submit
C:\Users\Admin\Desktop\XGtM.lnk

Filesize
869B

MD5
2ab3303eb45955093691ee3778e10466

SHA1
019fcb64ad71189425420071ef66ae8f9db28446

SHA256
0cb49ae5606cd8165d4300bcbe6e75c484e6a1e667bc78c5ac27b743f59092e0

SHA512
4017038dd41875c1fef6f97c661e85c2d154384e5cdb352bf88d4ba17d634ac3de761e5fd09d17354ec132ce19bd3a306bc17260570fb3f069bfa9ea2d5f78d4

Download Submit
C:\Users\Admin\Desktop\XGtM.lnk

Filesize
1KB

MD5
c7964568dbfbbfed12650822a81f5cb3

SHA1
3b1fc16746c603e7219629c8363c69bf9e4886d2

SHA256
2dfa18d59d252928cccd3192bc492e59aaca4106f50e8b012fa6c8dbeebea634

SHA512
50a91c98cee36dc7441172863b10632af66a574cc41a2cd149186b2abba177377a7b999957351ad330546d2ce1fa0a118bed2de89edda54050e878282fe012c9

Download Submit
memory/576-62-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1672-0-0x00000000023C0000-0x00000000027A6000-memory.dmp

Filesize
3.9MB

Download
memory/1672-73-0x00000000023C0000-0x00000000027A6000-memory.dmp

Filesize
3.9MB

Download
memory/1672-72-0x0000000000400000-0x0000000000890000-memory.dmp

Filesize
4.6MB

Download
memory/3020-77-0x0000000000850000-0x000000000087A000-memory.dmp

Filesize
168KB

Download