gh0strat | d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c

General

Target

d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe
Size

1.2MB
MD5

146c528115712f694c7199c0e8a41f6f
SHA1

7cfbc8890711833dc8ef59f80bceb78a693854df
SHA256

d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c
SHA512

ba186c90e1d8242f21142f77273fc0a28e1970ee0691a51d03b30fc6a68206a792b773531583668f539da9cc3bed9de893a49139a9226c9bf90c6d6b8e5b1b06
SSDEEP

24576:HovxCwgMBqHO5ZdYXOp0nQrXctTfK+d+MrTXowFlw57XYBwJtiI:WIwgMEuy+inDfp3/XoCw57XYBwKI

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx vmprotect

Malware Config

Signatures

Detect PurpleFox Rootkit 4 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2716-29-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2716-28-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2828-47-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2828-53-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/files/0x0016000000018657-14.dat	family_gh0strat
behavioral1/memory/2716-29-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2716-28-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2828-47-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2828-48-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2828-49-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2828-53-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2828-54-0x0000000010000000-0x00000000101BA000-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\\259444420.txt"	AK47.exe

Executes dropped EXE 4 IoCs

pid	Process
1636	AK47.exe
2164	AK47.exe
2716	AK74.exe
2724	Ghiya.exe

Loads dropped DLL 5 IoCs

pid	Process
2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe
2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe
2164	AK47.exe
2248	svchost.exe
2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe

VMProtect packed file 2 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral1/memory/2204-0-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/memory/2204-1-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259444420.txt	AK47.exe
File created	C:\Windows\SysWOW64\259444420.txt	AK47.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	AK47.exe
File created	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File created	C:\Windows\SysWOW64\Ghiya.exe	AK74.exe
File opened for modification	C:\Windows\SysWOW64\Ghiya.exe	AK74.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2716-26-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2716-29-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2716-28-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2828-45-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2828-47-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2828-48-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2828-49-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2828-53-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2828-54-0x0000000010000000-0x00000000101BA000-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 4 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	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.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

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
2568	PING.EXE
744	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2568	PING.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe
2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 1636	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	31
PID 2204 wrote to memory of 1636	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	31
PID 2204 wrote to memory of 1636	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	31
PID 2204 wrote to memory of 1636	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	31
PID 2204 wrote to memory of 2164	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	32
PID 2204 wrote to memory of 2164	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	32
PID 2204 wrote to memory of 2164	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	32
PID 2204 wrote to memory of 2164	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	32
PID 2204 wrote to memory of 2716	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	35
PID 2204 wrote to memory of 2716	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	35
PID 2204 wrote to memory of 2716	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	35
PID 2204 wrote to memory of 2716	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	35
PID 2204 wrote to memory of 2716	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	35
PID 2204 wrote to memory of 2716	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	35
PID 2204 wrote to memory of 2716	2204	d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe	35

C:\Users\Admin\AppData\Local\Temp\d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe
"C:\Users\Admin\AppData\Local\Temp\d92b5333adf1e82eced72aabc994cdc12cb0308b1cfe5047c71dab072acef37c.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2204
- 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:1636
- 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:2164
- 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
  PID:2716
- - 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:744
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2568
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
  2⤵
  PID:624

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:1472

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:2248

C:\Windows\SysWOW64\Ghiya.exe
C:\Windows\SysWOW64\Ghiya.exe -auto
1⤵
- Executes dropped EXE
PID:2724
- C:\Windows\SysWOW64\Ghiya.exe
  C:\Windows\SysWOW64\Ghiya.exe -acsi
  2⤵
  PID:2828

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

\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
\Windows\SysWOW64\259444420.txt

Filesize
49KB

MD5
93840fba8fdfb45f0216b345d15b93e7

SHA1
9ac0cd0f25e7e8348a1b466f8d13abcb2e9c4524

SHA256
88f014650806f2636e9df292cc15752b9dab341dc21b0e779ed21f33b7dae1e9

SHA512
c49129d0995f4688e9edd053ba8bcb074f38e2a117ef41444ebe45544db501bccf3c1f8cdc215b4abc14ca4ac60c415f5d05ed519bb77dbdec6736313a39a139

Download Submit
memory/2204-0-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2204-1-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2716-29-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2716-26-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2716-28-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2828-45-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2828-47-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2828-48-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2828-49-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2828-53-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2828-54-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download

Analysis

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