fatalrat | b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29-12-2023 08:10

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General

Target

b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe
Size

371KB
MD5

1bfd40f5323dc3059b6d149eef3b7da1
SHA1

251eea4432cbae0a913d5c87b40da661ace19ea7
SHA256

b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8
SHA512

12fbdeac3259640ecfcb08b0b5ccac725494c4289864db8bcf747c17cac9f01a25509ef881f90a3cb5b8fd4beea568f77715bc673bdf1ca758c5c05131f39bb3
SSDEEP

3072:Ad5LZseWDzoPZ6WS6BLfvgaSlpcD+05fLM/HjCRofsn+49KHVstgXDBaQdd7Gu/0:ASzkPDNGEfY/HVfsnneV6coQDnqDas

Score

10^/10

fatalrat infostealer rat vmprotect

Malware Config

Signatures

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

Fatal Rat payload 3 IoCs

rat infostealer

resource	yara_rule
behavioral2/memory/996-2-0x0000000010000000-0x000000001002A000-memory.dmp	fatalrat
behavioral2/memory/996-20-0x0000000000400000-0x000000000045B000-memory.dmp	fatalrat
behavioral2/memory/4936-26-0x0000000000400000-0x000000000045B000-memory.dmp	fatalrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe

Executes dropped EXE 1 IoCs

pid	Process
4936	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe

VMProtect packed file 5 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/996-0-0x0000000000400000-0x000000000045B000-memory.dmp	vmprotect
behavioral2/memory/996-1-0x0000000000400000-0x000000000045B000-memory.dmp	vmprotect
behavioral2/memory/996-20-0x0000000000400000-0x000000000045B000-memory.dmp	vmprotect
behavioral2/memory/4936-19-0x0000000000400000-0x000000000045B000-memory.dmp	vmprotect
behavioral2/memory/4936-26-0x0000000000400000-0x000000000045B000-memory.dmp	vmprotect

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
996	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe
4936	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	996	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe
Token: SeDebugPrivilege	4936	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
996	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe
4936	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 996 wrote to memory of 4936	996	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe	21
PID 996 wrote to memory of 4936	996	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe	21
PID 996 wrote to memory of 4936	996	b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe	21

C:\Users\Admin\AppData\Local\Temp\b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe
"C:\Users\Admin\AppData\Local\Temp\b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe"
1⤵
- Checks computer location settings
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:996
- C:\Users\Admin\AppData\Local\b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe
  "C:\Users\Admin\AppData\Local\b0674d01d33b06ebd927e23527952977c1d401599f770897b4e0e5d351c8eed8.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4936

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

memory/996-0-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/996-1-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/996-2-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download
memory/996-20-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4936-19-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4936-26-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download