gh0strat | 6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d

General

Target

6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe
Size

1.2MB
MD5

30c6bfde5eedec780ff0b66ae005205c
SHA1

b2ce54ff89a5760773b15c78df9feb17d65950a0
SHA256

6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d
SHA512

835b21c0b975980f546ef4280ca988bd04b9b71903ca727cedcb5b9355dbe4b2d9a4b01fa16829e225370e5f7fe1756f9069903e5a9c35d86ba97ba15a946a5e
SSDEEP

24576:HovxCwgMBqHO5ZdYXOp0nQrXctTfK+d+MrTXowFlw57XYBwJti4:WIwgMEuy+inDfp3/XoCw57XYBwK4

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx vmprotect

Malware Config

Signatures

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2280-24-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2280-23-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/800-48-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/800-47-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/800-49-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/800-51-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 7 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015e37-15.dat	family_gh0strat
behavioral1/memory/2280-24-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2280-23-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/800-48-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/800-47-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/800-49-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/800-51-0x0000000010000000-0x00000000101BA000-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
Gh0strat family
gh0strat
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
Purplefox family
purplefox

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\259428227.txt"	AK47.exe

Executes dropped EXE 4 IoCs

pid	Process
2040	AK47.exe
1800	AK47.exe
2280	AK74.exe
2076	Ghiya.exe

Loads dropped DLL 6 IoCs

pid	Process
1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe
1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe
2040	AK47.exe
1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe
1708	svchost.exe
2076	Ghiya.exe

VMProtect packed file 3 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral1/memory/1900-0-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/memory/1900-1-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/files/0x00070000000161e4-61.dat	vmprotect

Drops file in System32 directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File created	C:\Windows\SysWOW64\259428227.txt	AK47.exe
File created	C:\Windows\SysWOW64\259428227.txt	AK47.exe
File created	C:\Windows\SysWOW64\Ghiya.exe	AK74.exe
File opened for modification	C:\Windows\SysWOW64\Ghiya.exe	AK74.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	AK47.exe
File created	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2280-24-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2280-23-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2280-21-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/800-45-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/800-48-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/800-47-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/800-49-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/800-51-0x0000000010000000-0x00000000101BA000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AK47.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AK47.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AK74.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2436	cmd.exe
2920	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2920	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2280	AK74.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe
1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2040	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	28
PID 1900 wrote to memory of 2040	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	28
PID 1900 wrote to memory of 2040	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	28
PID 1900 wrote to memory of 2040	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	28
PID 1900 wrote to memory of 1800	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	29
PID 1900 wrote to memory of 1800	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	29
PID 1900 wrote to memory of 1800	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	29
PID 1900 wrote to memory of 1800	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	29
PID 1900 wrote to memory of 2280	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	30
PID 1900 wrote to memory of 2280	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	30
PID 1900 wrote to memory of 2280	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	30
PID 1900 wrote to memory of 2280	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	30
PID 1900 wrote to memory of 2280	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	30
PID 1900 wrote to memory of 2280	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	30
PID 1900 wrote to memory of 2280	1900	6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe	30
PID 2280 wrote to memory of 2436	2280	AK74.exe	34
PID 2280 wrote to memory of 2436	2280	AK74.exe	34
PID 2280 wrote to memory of 2436	2280	AK74.exe	34
PID 2280 wrote to memory of 2436	2280	AK74.exe	34

C:\Users\Admin\AppData\Local\Temp\6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe
"C:\Users\Admin\AppData\Local\Temp\6539b1497d2c092d0782173619ddc6625e3478a4376296a9e7e3b1553522de3d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Users\Admin\AppData\Local\Temp\AK47.exe
  "C:\Users\Admin\AppData\Local\Temp\AK47.exe"
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2040
- C:\Users\Admin\AppData\Local\Temp\AK47.exe
  C:\Users\Admin\AppData\Local\Temp\\AK47.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:1800
- C:\Users\Admin\AppData\Local\Temp\AK74.exe
  C:\Users\Admin\AppData\Local\Temp\\AK74.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2280
- - 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\AK74.exe > nul
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    PID:2436
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2920
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
  2⤵
  PID:1228

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:1312

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:1708

C:\Windows\SysWOW64\Ghiya.exe
C:\Windows\SysWOW64\Ghiya.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2076
- C:\Windows\SysWOW64\Ghiya.exe
  C:\Windows\SysWOW64\Ghiya.exe -acsi
  2⤵
  PID:800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs

Filesize
753B

MD5
462504d9f82c7f70b4c0c329eb6780d0

SHA1
e460f25d172dedaf2b2e214e081483858004e716

SHA256
33e0ab85e6f7fc0638f3c4bd030685621819c6a5b5dbe52e2f14cfefc052931b

SHA512
1d67550ef29973438becff534f10346910990fcfb18dd318ddb8f617ec80afa2d839f74bf69f4ba192a77ba5733dcb0f88704d2042aac65972b2c40efdb2928b

Download Submit
\Users\Admin\AppData\Local\Temp\AK47.exe

Filesize
91KB

MD5
423eb994ed553294f8a6813619b8da87

SHA1
eca6a16ccd13adcfc27bc1041ddef97ec8081255

SHA256
050b4f2d5ae8eaecd414318dc8e222a56f169626da6ca8feb7edd78e8b1f0218

SHA512
fab0a9af8031c242c486de373df7277c8b0e39f7a0c9c2ac2e385dbd3ea67be16e91b128287634f76131e5264149ab1b452cd21df4c4895e8c4efc8d8cf99095

Download Submit
\Users\Admin\AppData\Local\Temp\AK74.exe

Filesize
400KB

MD5
b0998aa7d5071d33daa5b60b9c3c9735

SHA1
9365a1ff0c6de244d6f36c8d84072cc916665d3c

SHA256
3080b6bb456564899b0d99d4131bd6a0b284d31f7d80ef773e4872d94048d49a

SHA512
308c13cda9fea39b980ae686f44afd9090e9cb8970fffc4436320e0d09a31aee5e656914e0121fe888098a14c52749716fa04980396fd6ac70a88c11cbb6b850

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe

Filesize
1.2MB

MD5
88a6f916135b0f3e56d30502b1ae2829

SHA1
af1b299a3efee0462fda5cc9eeabe905aec946cd

SHA256
43add24e6987661dd974d7cd437eb0bd97cac67fd04d178596ab275a39649c1e

SHA512
c215f272f01c54253914f1024da9d1111af045bbe2e88b5c4e6216ae6c7fc3b89481b09ea0508e8194ae27d4580fc2e06867cac71c5d282e1a5f63e7f451ab44

Download Submit
\Windows\SysWOW64\259428227.txt

Filesize
49KB

MD5
167e5490610282025f4035016fcf0ee4

SHA1
cd0e01eff7e6f8052863f893e0bcb88971ea712f

SHA256
559061649e75c0c37d3cc6d8690ea0d67c060d57a4c76fb1cf3a484493a00a8f

SHA512
c065a5725d98f197448b760b5597c0f9b59507be156e5ae1ab7b2292feffe6c9a9c153dad8305c1f41eeeed4bb41071d4eeb823d78169e4ece76571c0eebc29d

Download Submit
memory/800-45-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/800-48-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/800-47-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/800-49-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/800-51-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/1900-0-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/1900-64-0x00000000007F0000-0x0000000000800000-memory.dmp

Filesize
64KB

Download
memory/1900-63-0x00000000007F0000-0x0000000000800000-memory.dmp

Filesize
64KB

Download
memory/1900-1-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2280-23-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2280-21-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2280-24-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download

Analysis

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