fatalrat | b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e

Analysis

max time kernel
119s
max time network
138s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06-03-2024 10:36

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General

Target

b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
Size

1.2MB
MD5

a0cd682572bead77d039b40912ae1b70
SHA1

74e4615558ffb8d6c22ced83b8912c79140fae50
SHA256

b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e
SHA512

dc838cd33dcfff3b471213ba4e9fbf9e22a30aa0c980b19d7e7f345d2a2e069453c6ece02bf274a8912f9dd34cb468bc747b6c61657d6320bd9ccfb3b317e1d8
SSDEEP

24576:aCPiA4TZzM/LGZfnMkDdNOWvqszPUFc9OuQlzE9fzwJVjDKkdog4w+C0YdMpN5VM:6tMk/vqszMi9OuQlzE9MJhKkSgv+CLmk

Score

10^/10

fatalrat infostealer persistence rat upx

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

resource	yara_rule
behavioral1/memory/320-37-0x00000000000C0000-0x00000000000F0000-memory.dmp	fatalrat
behavioral1/memory/320-38-0x0000000010000000-0x0000000010029000-memory.dmp	fatalrat

Deletes itself 1 IoCs

pid	Process
2304	WScript.exe

Executes dropped EXE 2 IoCs

pid	Process
2576	kl.exe
320	Agghosts.exe

Loads dropped DLL 3 IoCs

pid	Process
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
320	Agghosts.exe
320	Agghosts.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2124-0-0x0000000000400000-0x00000000005A4000-memory.dmp	upx
behavioral1/memory/2124-1-0x0000000000400000-0x00000000005A4000-memory.dmp	upx
behavioral1/files/0x0033000000013a7c-8.dat	upx
behavioral1/memory/2124-10-0x0000000003330000-0x0000000003475000-memory.dmp	upx
behavioral1/memory/2124-19-0x0000000000400000-0x00000000005A4000-memory.dmp	upx
behavioral1/memory/2576-20-0x0000000000400000-0x0000000000545000-memory.dmp	upx
behavioral1/memory/2576-47-0x0000000000400000-0x0000000000545000-memory.dmp	upx
behavioral1/memory/2124-55-0x0000000000400000-0x00000000005A4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\Çý¶¯Éú = "C:\\ukqdmi\\Agghosts.exe"	Agghosts.exe

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

System Information Discovery
T1082

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	Agghosts.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Agghosts.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe
320	Agghosts.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	2000	helppane.exe
Token: SeDebugPrivilege	320	Agghosts.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2000	helppane.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
2576	kl.exe
2576	kl.exe
2000	helppane.exe
2000	helppane.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2576	2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe	28
PID 2124 wrote to memory of 2576	2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe	28
PID 2124 wrote to memory of 2576	2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe	28
PID 2124 wrote to memory of 2576	2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe	28
PID 2000 wrote to memory of 320	2000	helppane.exe	32
PID 2000 wrote to memory of 320	2000	helppane.exe	32
PID 2000 wrote to memory of 320	2000	helppane.exe	32
PID 2000 wrote to memory of 320	2000	helppane.exe	32
PID 2576 wrote to memory of 1656	2576	kl.exe	33
PID 2576 wrote to memory of 1656	2576	kl.exe	33
PID 2576 wrote to memory of 1656	2576	kl.exe	33
PID 2576 wrote to memory of 1656	2576	kl.exe	33
PID 2124 wrote to memory of 2304	2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe	34
PID 2124 wrote to memory of 2304	2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe	34
PID 2124 wrote to memory of 2304	2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe	34
PID 2124 wrote to memory of 2304	2124	b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe	34

C:\Users\Admin\AppData\Local\Temp\b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe
"C:\Users\Admin\AppData\Local\Temp\b7794e9d2be35d928d7ca6bcf5e60903d3da29bec3d3940339a81be3708e4d4e.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Users\Public\Pictures\kl\kl.exe
  C:\Users\Public\Pictures\kl\kl.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Public\Pictures\kl\tem.vbs"
    3⤵
    PID:1656
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\tem.vbs"
  2⤵
  - Deletes itself
  PID:2304

C:\Windows\helppane.exe
C:\Windows\helppane.exe -Embedding
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2000
- C:\ukqdmi\Agghosts.exe
  "C:\ukqdmi\Agghosts.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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:\Users\Admin\AppData\Local\Temp\tem.vbs

Filesize
275B

MD5
a43f5c2b0a5e5198ab5801402cf1a9a5

SHA1
e0be78f806b58f5bb53674bc065d14a3ad8eef84

SHA256
6324000401c93c23825aef6bc652b0e57e7a8d74b314c3ceb3486cd0b91eb2d5

SHA512
3ea5b9e258ed53a2da11a8555ae18bca5c768d35ff334cdeb850ea12663977f2057f46de375ee48fbf6fd654aab874527036ba0d43bc099840c0d56816234747

Download Submit
C:\Users\Public\Pictures\kl\tem.vbs

Filesize
201B

MD5
81ae3ab652861602461c943ec6f473b4

SHA1
acf74565b4b426b770de8d858fd22cde3200119d

SHA256
4a86cc0d67b6dff304f0218634ab9bee640815d3bdc650012efd1d199b79c4f8

SHA512
2dc88df06e16470bd0317ed9666741eb580729e472b4b48352f0a83912065e292f5d6dfa165738478590c71c33713baa57a8b808175b35972d5c77b89713a3bf

Download Submit
C:\ukqdmi\Agghosts.exe

Filesize
23KB

MD5
5aab297fa8f143bfa67310ad78b76d3f

SHA1
5db963c2cca1bc8c8c060c52f7df76ccb477f01a

SHA256
8ec64bc55e5641d7683288e5e8e27c9391f06eb4da096c3d677d8f25ca4d04df

SHA512
c1ee67bd4c6bcfdc4179f905c7abc4ac632c9265b61dd5fdb90eeeec39802abe2cc487a5c8ded8a0748728104170c1b4d3a88904f102e1c3f891fac7702a2256

Download Submit
C:\ukqdmi\Enpud.png

Filesize
157KB

MD5
6d4775f18b2ee05bb4763d3080d36bbe

SHA1
cdf9525b39409515b350d02b91bff61aac3cd55f

SHA256
23bb3a8e6cd6be562f57e98441888782f8f0d8d8ce456a9a40bf711a68a34c97

SHA512
45368d3468e45324362eded3905d16850136318acf88c9d8d9590f77fb912d423fe52f24ab3b0b4d001605692e2d0627ba1463de533b96724cd25a8548cf9e82

Download Submit
\Users\Public\Pictures\kl\kl.exe

Filesize
618KB

MD5
a42deae0974ab7c9122370bfba837fe6

SHA1
237ff0b63a56126542a9cb103c7cbfc397ada84b

SHA256
36ad631425f128b45e48d26d11e8750f44aa4d4802d60cff4dc7ab9577639b74

SHA512
9ea8820f7da135a9188b1cca234cdc7080e7dade8b69b9e8c79569fa9c5c49406d8e3b84bdae0b29aa5f836804f9c855f7c662ceb9d152cff1dd01478996fcad

Download Submit
\ukqdmi\QiDianBrowserMgr.dll

Filesize
123KB

MD5
daa799b7defab6d9867c5d519b36611f

SHA1
4020d8587c28df934bd460b4dc953561be61e4ff

SHA256
6cec316645c5abc4f31eb25f3f09f462f843fc73b9c1db79c5f580c6773e8d00

SHA512
52979cb556129d2efd2615001cfd5dab74066c9ed45d46746c02d71f6418b92a61fc5dc4c182089d2bc66d7d1a5e461b8fa60702f872d63194412bc4fa699777

Download Submit
\ukqdmi\vcruntime140.dll

Filesize
77KB

MD5
f107a3c7371c4543bd3908ba729dd2db

SHA1
af8e7e8f446de74db2f31d532e46eab8bbf41e0a

SHA256
00df0901c101254525a219d93ff1830da3a20d3f14bc323354d8d5fee5854ec0

SHA512
fd776f8ceaac498f4f44819794c0fa89224712a8c476819ffc76ba4c7ff4caa9b360b9d299d9df7965387e5bbcb330f316f53759b5146a73b27a5f2e964c3530

Download Submit
memory/320-37-0x00000000000C0000-0x00000000000F0000-memory.dmp

Filesize
192KB

Download
memory/320-38-0x0000000010000000-0x0000000010029000-memory.dmp

Filesize
164KB

Download
memory/2000-29-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2124-22-0x0000000003330000-0x0000000003475000-memory.dmp

Filesize
1.3MB

Download
memory/2124-0-0x0000000000400000-0x00000000005A4000-memory.dmp

Filesize
1.6MB

Download
memory/2124-19-0x0000000000400000-0x00000000005A4000-memory.dmp

Filesize
1.6MB

Download
memory/2124-10-0x0000000003330000-0x0000000003475000-memory.dmp

Filesize
1.3MB

Download
memory/2124-55-0x0000000000400000-0x00000000005A4000-memory.dmp

Filesize
1.6MB

Download
memory/2124-1-0x0000000000400000-0x00000000005A4000-memory.dmp

Filesize
1.6MB

Download
memory/2576-20-0x0000000000400000-0x0000000000545000-memory.dmp

Filesize
1.3MB

Download
memory/2576-47-0x0000000000400000-0x0000000000545000-memory.dmp

Filesize
1.3MB

Download