fatalrat | f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070

General

Target

f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe
Size

416KB
MD5

cc04461cecb63d207d2e12589dc163b0
SHA1

f5208002a9666497556246a3e054016499d7b597
SHA256

f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070
SHA512

51244b5a53023c7a144c695c65ae14ec61df9483043b14a5d70c773bd1e3c1eea0bcf2a5b3739087071a83de6d195da26d39ceb45abc429ab8db1a50eb5c0778
SSDEEP

3072:ILzqtvZHbDovaAY9+h7FXncveijUGD+3o/QRnQ:PZHQvaAq+hVnEvt/QRnQ

Score

10^/10

fatalrat gh0strat infostealer rat upx

Malware Config

Extracted

Family

gh0strat

C2

175.178.15.177

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/2456-3-0x0000000010000000-0x000000001002B000-memory.dmp	family_gh0strat
behavioral2/memory/2456-14-0x0000000010000000-0x000000001002B000-memory.dmp	family_gh0strat
behavioral2/memory/4332-18-0x0000000010000000-0x000000001002B000-memory.dmp	family_gh0strat
behavioral2/memory/4332-20-0x0000000010000000-0x000000001002B000-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 4 IoCs

rat infostealer

resource	yara_rule
behavioral2/memory/2456-3-0x0000000010000000-0x000000001002B000-memory.dmp	fatalrat
behavioral2/memory/2456-14-0x0000000010000000-0x000000001002B000-memory.dmp	fatalrat
behavioral2/memory/4332-18-0x0000000010000000-0x000000001002B000-memory.dmp	fatalrat
behavioral2/memory/4332-20-0x0000000010000000-0x000000001002B000-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-1-5-21-1141987721-3945596982-3297311814-1000\Control Panel\International\Geo\Nation	f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe

Executes dropped EXE 1 IoCs

pid	Process
4332	f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2456-0-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/2456-3-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/2456-14-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/4332-18-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/4332-20-0x0000000010000000-0x000000001002B000-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	2456	f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe
Token: SeDebugPrivilege	4332	f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 4332	2456	f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe	82
PID 2456 wrote to memory of 4332	2456	f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe	82
PID 2456 wrote to memory of 4332	2456	f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe	82

C:\Users\Admin\AppData\Local\Temp\f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe
"C:\Users\Admin\AppData\Local\Temp\f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Users\Admin\AppData\Local\f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe
  "C:\Users\Admin\AppData\Local\f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4332

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\f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe

Filesize
416KB

MD5
cc04461cecb63d207d2e12589dc163b0

SHA1
f5208002a9666497556246a3e054016499d7b597

SHA256
f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070

SHA512
51244b5a53023c7a144c695c65ae14ec61df9483043b14a5d70c773bd1e3c1eea0bcf2a5b3739087071a83de6d195da26d39ceb45abc429ab8db1a50eb5c0778

Download Submit
C:\Users\Admin\AppData\Local\f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe

Filesize
416KB

MD5
cc04461cecb63d207d2e12589dc163b0

SHA1
f5208002a9666497556246a3e054016499d7b597

SHA256
f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070

SHA512
51244b5a53023c7a144c695c65ae14ec61df9483043b14a5d70c773bd1e3c1eea0bcf2a5b3739087071a83de6d195da26d39ceb45abc429ab8db1a50eb5c0778

Download Submit
C:\Users\Admin\AppData\Local\f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070.exe

Filesize
416KB

MD5
cc04461cecb63d207d2e12589dc163b0

SHA1
f5208002a9666497556246a3e054016499d7b597

SHA256
f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070

SHA512
51244b5a53023c7a144c695c65ae14ec61df9483043b14a5d70c773bd1e3c1eea0bcf2a5b3739087071a83de6d195da26d39ceb45abc429ab8db1a50eb5c0778

Download Submit
memory/2456-0-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/2456-3-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/2456-14-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/4332-18-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/4332-20-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download

Analysis

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