gh0strat | 82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569

Analysis

max time kernel
151s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 02:29

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
Size 2.1MB
Sample240529-cyzaesfa2x
SHA256 82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569
MD5 2833881f3d35207b09fcb6b572907efa
SHA1 c0d0eeb4793759babfb980b5c8ec9990e94da22d
SHA512 7d4923568f132fb38788665428d411dfb8886debd7611a4584c8ce827ffe6f8c59af6ffb109fb66a37e507a34f8c82a98a0e63fe9793ff2e274f0088352958cd
SSDEEP 49152:609XJt4HIN2H2tFvduySKDmn29GzzIiw+N686Kj:7ZJt4HINy2LkKDmn29iZw+QT8
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/1684-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1684-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1684-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/944-27-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1976-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1976-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1976-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1976-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/1684-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1684-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1684-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/944-27-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1976-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1976-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1976-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1976-39-0x0000000010000000-0x00000000101B6000-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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	TXPlatforn.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatforn.exe

Executes dropped EXE 4 IoCs

pid	Process
1684	RVN.exe
944	TXPlatforn.exe
1976	TXPlatforn.exe
948	HD_82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe

Loads dropped DLL 3 IoCs

pid	Process
1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
944	TXPlatforn.exe
1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1684-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1684-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1684-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1684-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/944-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1976-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1976-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1976-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1976-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
File created	C:\Program Files\Mozilla Firefox\firefox.exe	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2004	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1976	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1684	RVN.exe
Token: SeLoadDriverPrivilege	1976	TXPlatforn.exe
Token: 33	1976	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1976	TXPlatforn.exe
Token: 33	1976	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1976	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 1684	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	30
PID 1776 wrote to memory of 1684	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	30
PID 1776 wrote to memory of 1684	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	30
PID 1776 wrote to memory of 1684	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	30
PID 1776 wrote to memory of 1684	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	30
PID 1776 wrote to memory of 1684	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	30
PID 1776 wrote to memory of 1684	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	30
PID 1684 wrote to memory of 1620	1684	RVN.exe	32
PID 1684 wrote to memory of 1620	1684	RVN.exe	32
PID 1684 wrote to memory of 1620	1684	RVN.exe	32
PID 1684 wrote to memory of 1620	1684	RVN.exe	32
PID 944 wrote to memory of 1976	944	TXPlatforn.exe	34
PID 944 wrote to memory of 1976	944	TXPlatforn.exe	34
PID 944 wrote to memory of 1976	944	TXPlatforn.exe	34
PID 944 wrote to memory of 1976	944	TXPlatforn.exe	34
PID 944 wrote to memory of 1976	944	TXPlatforn.exe	34
PID 944 wrote to memory of 1976	944	TXPlatforn.exe	34
PID 944 wrote to memory of 1976	944	TXPlatforn.exe	34
PID 1776 wrote to memory of 948	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	35
PID 1776 wrote to memory of 948	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	35
PID 1776 wrote to memory of 948	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	35
PID 1776 wrote to memory of 948	1776	82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe	35
PID 1620 wrote to memory of 2004	1620	cmd.exe	36
PID 1620 wrote to memory of 2004	1620	cmd.exe	36
PID 1620 wrote to memory of 2004	1620	cmd.exe	36
PID 1620 wrote to memory of 2004	1620	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
"C:\Users\Admin\AppData\Local\Temp\82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Local\Temp\RVN.exe
  C:\Users\Admin\AppData\Local\Temp\\RVN.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1684
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\RVN.exe > nul
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1620
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2004
- C:\Users\Admin\AppData\Local\Temp\HD_82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
  C:\Users\Admin\AppData\Local\Temp\HD_82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
  2⤵
  - Executes dropped EXE
  PID:948

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:944
- C:\Windows\SysWOW64\TXPlatforn.exe
  C:\Windows\SysWOW64\TXPlatforn.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:1976

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

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.4MB
SHA256 d0a466bee938d4caf038c1b88736ec48a1ff5e5a1e31af04cc55eaf171d6cd02
MD5 3319a301580875d1f94036e46dc3b716
SHA1 0194a2e64fb65d151260dad9301a0b0f6c4f1ff0
SHA512 5ee77156dab5ae77505a9bf91fb8b35c6f3cb2ec54748a346b047193fd077e21e2cc4805b07a762494f0de9e98a043d738664165c6c76d584aab2bb9dd98ee48
SSDEEP 24576:609tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy++bV1Dfun28:609XJt4HIN2H2tFvduySKDmn28
MD5 SHA1 SHA512 SSDEEP

Submit Download

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.4MB
SHA256 fa6e2192a225a5568d2b320d29e08708e22907d4c7e9378ba11a6bbe39ec421a
MD5 165fc27ef3403737fa61af0e7ccd2da0
SHA1 8ecef4412710659056248c262738d23587a52165
SHA512 198fcc6981b5bc77bea1da6939004edaaa5931d041604873a09ea085a781e1af91f187d2eed341bf61ccdda69499d830b629c634fda9ea32699f0acf5eddbd33
SSDEEP 24576:P09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+vwpetV1Dfun2L:P09XJt4HIN2H2tFvduySGpeZDmn2L
MD5 SHA1 SHA512 SSDEEP

Submit Download

HD_82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe

Path \Users\Admin\AppData\Local\Temp\HD_82aa85948f63071aa09cb0d6c6f5416786bd0ae430cc74c65b1d51c8c3349569.exe
Size 755KB
SHA256 8e8af477ce9274307c5f97bf4b11f70bb97a16ec2bd33894ef7c5cbbd169b707
MD5 a3f99913f631c1f49038fc9c18b7cee3
SHA1 74ba04f0e4f967472163f9eaf6b5d5340e4efed5
SHA512 c8fba585dfac5f83885af9076b45bc743df9a3c068851ab54a0a8252fe812a552ef8d11541b423e3142fa3085beeb692c6e91dae840a0e19379f0e89c2022a6c
SSDEEP 12288:fT90w0zxHxSvkJkMS0PZt8tXrk26FepdFe+HeGVVyCQxGjVn0fY0TlmAMaWQucuI:ffGRSvkrzrENQwTqN6RW6ouAj
MD5 SHA1 SHA512 SSDEEP

Submit Download

RVN.exe

Path \Users\Admin\AppData\Local\Temp\RVN.exe
Size 377KB
SHA256 57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd
MD5 80ade1893dec9cab7f2e63538a464fcc
SHA1 c06614da33a65eddb506db00a124a3fc3f5be02e
SHA512 fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4
SSDEEP 6144:BEo7J1ixs4uVKE9rFEAHKThrBSq2hAzSM5mDo9lSJULHZqExlD2E1LxhJVwIe0Dy:Wo2HQVWAHkFSq2hAWJYlMUtrxlyuJVRq
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/944-27-0x0000000010000000-0x00000000101B6000-memory.dmp

Download

memory/1684-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Download

memory/1684-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Download

memory/1684-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Download

memory/1684-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Download

memory/1976-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Download

memory/1976-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Download

memory/1976-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Download

memory/1976-35-0x0000000010000000-0x00000000101B6000-memory.dmp

Download