fatalrat | f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
16-09-2023 15:46

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General

Target

cc04461cecb63d207d2e12589dc163b0_JC.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

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/100-2-0x0000000010000000-0x000000001002B000-memory.dmp	family_gh0strat
behavioral2/memory/100-14-0x0000000010000000-0x000000001002B000-memory.dmp	family_gh0strat
behavioral2/memory/1332-18-0x0000000010000000-0x000000001002B000-memory.dmp	family_gh0strat
behavioral2/memory/1332-20-0x0000000010000000-0x000000001002B000-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/100-14-0x0000000010000000-0x000000001002B000-memory.dmp	fatalrat
behavioral2/memory/1332-18-0x0000000010000000-0x000000001002B000-memory.dmp	fatalrat
behavioral2/memory/1332-20-0x0000000010000000-0x000000001002B000-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	cc04461cecb63d207d2e12589dc163b0_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
1332	cc04461cecb63d207d2e12589dc163b0_JC.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/100-0-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/100-2-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/100-14-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/1332-18-0x0000000010000000-0x000000001002B000-memory.dmp	upx
behavioral2/memory/1332-20-0x0000000010000000-0x000000001002B000-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	100	cc04461cecb63d207d2e12589dc163b0_JC.exe
Token: SeDebugPrivilege	1332	cc04461cecb63d207d2e12589dc163b0_JC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 100 wrote to memory of 1332	100	cc04461cecb63d207d2e12589dc163b0_JC.exe	85
PID 100 wrote to memory of 1332	100	cc04461cecb63d207d2e12589dc163b0_JC.exe	85
PID 100 wrote to memory of 1332	100	cc04461cecb63d207d2e12589dc163b0_JC.exe	85

C:\Users\Admin\AppData\Local\Temp\cc04461cecb63d207d2e12589dc163b0_JC.exe
"C:\Users\Admin\AppData\Local\Temp\cc04461cecb63d207d2e12589dc163b0_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:100
- C:\Users\Admin\AppData\Local\cc04461cecb63d207d2e12589dc163b0_JC.exe
  "C:\Users\Admin\AppData\Local\cc04461cecb63d207d2e12589dc163b0_JC.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1332

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

C:\Users\Admin\AppData\Local\cc04461cecb63d207d2e12589dc163b0_JC.exe

Filesize
416KB

MD5
cc04461cecb63d207d2e12589dc163b0

SHA1
f5208002a9666497556246a3e054016499d7b597

SHA256
f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070

SHA512
51244b5a53023c7a144c695c65ae14ec61df9483043b14a5d70c773bd1e3c1eea0bcf2a5b3739087071a83de6d195da26d39ceb45abc429ab8db1a50eb5c0778

Download Submit
C:\Users\Admin\AppData\Local\cc04461cecb63d207d2e12589dc163b0_JC.exe

Filesize
416KB

MD5
cc04461cecb63d207d2e12589dc163b0

SHA1
f5208002a9666497556246a3e054016499d7b597

SHA256
f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070

SHA512
51244b5a53023c7a144c695c65ae14ec61df9483043b14a5d70c773bd1e3c1eea0bcf2a5b3739087071a83de6d195da26d39ceb45abc429ab8db1a50eb5c0778

Download Submit
C:\Users\Admin\AppData\Local\cc04461cecb63d207d2e12589dc163b0_JC.exe

Filesize
416KB

MD5
cc04461cecb63d207d2e12589dc163b0

SHA1
f5208002a9666497556246a3e054016499d7b597

SHA256
f3a917b571c5d076484b754440fe1de843f5c7a35fc21c244b6951e79bb0c070

SHA512
51244b5a53023c7a144c695c65ae14ec61df9483043b14a5d70c773bd1e3c1eea0bcf2a5b3739087071a83de6d195da26d39ceb45abc429ab8db1a50eb5c0778

Download Submit
memory/100-0-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/100-2-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/100-14-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/1332-18-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download
memory/1332-20-0x0000000010000000-0x000000001002B000-memory.dmp

Filesize
172KB

Download