fatalrat | 703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da

General

Target

703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe
Size

128KB
MD5

305a788cb39bbf8eae2165109db03e4f
SHA1

9d42fc915ec900b82d7ca19cc569ebfd6038b12b
SHA256

703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da
SHA512

6a2debe93cbf89bb92b8c133462cd0199204dbf12a9b9ded411542958340501330740cf3f85c35ab862ffae759b855e679de626989208e093b655505cd0cacd2
SSDEEP

3072:FLzqtHZHbDovaAY9+h7FXncveijUGD+3o/JJ:8ZHQvaAq+hVnEvt/JJ

Score

10^/10

fatalrat gh0strat infostealer rat upx

Malware Config

Extracted

Family

gh0strat

C2

182.43.76.21

Signatures

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

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/4800-2-0x0000000010000000-0x000000001002B000-memory.dmp	family_gh0strat
behavioral2/memory/4800-13-0x0000000010000000-0x000000001002B000-memory.dmp	family_gh0strat
behavioral2/memory/1232-17-0x0000000010000000-0x000000001002B000-memory.dmp	family_gh0strat
behavioral2/memory/1232-20-0x0000000010000000-0x000000001002B000-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 3 IoCs

rat infostealer

resource	yara_rule
behavioral2/memory/4800-2-0x0000000010000000-0x000000001002B000-memory.dmp	fatalrat
behavioral2/memory/4800-13-0x0000000010000000-0x000000001002B000-memory.dmp	fatalrat
behavioral2/memory/1232-20-0x0000000010000000-0x000000001002B000-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-1-5-21-1045988481-1457812719-2617974652-1000\Control Panel\International\Geo\Nation	703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe

Executes dropped EXE 1 IoCs

pid	Process
1232	703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4800-0-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/4800-2-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/4800-13-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/1232-17-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/1232-20-0x0000000010000000-0x000000001002B000-memory.dmp	upx

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	4800	703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe
Token: SeDebugPrivilege	1232	703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 1232	4800	703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe	84
PID 4800 wrote to memory of 1232	4800	703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe	84
PID 4800 wrote to memory of 1232	4800	703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe	84

C:\Users\Admin\AppData\Local\Temp\703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe
"C:\Users\Admin\AppData\Local\Temp\703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Users\Admin\AppData\Local\703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe
  "C:\Users\Admin\AppData\Local\703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe

Filesize
128KB

MD5
305a788cb39bbf8eae2165109db03e4f

SHA1
9d42fc915ec900b82d7ca19cc569ebfd6038b12b

SHA256
703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da

SHA512
6a2debe93cbf89bb92b8c133462cd0199204dbf12a9b9ded411542958340501330740cf3f85c35ab862ffae759b855e679de626989208e093b655505cd0cacd2

Download Submit
C:\Users\Admin\AppData\Local\703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe

Filesize
128KB

MD5
305a788cb39bbf8eae2165109db03e4f

SHA1
9d42fc915ec900b82d7ca19cc569ebfd6038b12b

SHA256
703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da

SHA512
6a2debe93cbf89bb92b8c133462cd0199204dbf12a9b9ded411542958340501330740cf3f85c35ab862ffae759b855e679de626989208e093b655505cd0cacd2

Download Submit
C:\Users\Admin\AppData\Local\703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da.exe

Filesize
128KB

MD5
305a788cb39bbf8eae2165109db03e4f

SHA1
9d42fc915ec900b82d7ca19cc569ebfd6038b12b

SHA256
703f53e195248012916b04e99ad3ed1f42bb6a474e75fbb8b883897c6e2849da

SHA512
6a2debe93cbf89bb92b8c133462cd0199204dbf12a9b9ded411542958340501330740cf3f85c35ab862ffae759b855e679de626989208e093b655505cd0cacd2

Download Submit
memory/1232-17-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/1232-20-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/4800-0-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/4800-2-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/4800-13-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download

Analysis

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