gh0strat | 2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b

General

Target

2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe
Size

1.2MB
MD5

25888cae52e3938e24167c381a6062a2
SHA1

3efcd9fcab2ea3b461b4d29c14331d8f2a8c85d4
SHA256

2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b
SHA512

94ae7071995c050f06a4bb3ad51b6b7ee06e1e98c0743f6d5f186255bce0c2519087b95c5213639cfe266cc332437f86239f5d1299d07e49de83040f243b6644
SSDEEP

24576:HovxCwgMBqHO5ZdYXOp0nQrXctTfK+d+MrTXowFlw57XYBwJtiJ:WIwgMEuy+inDfp3/XoCw57XYBwKJ

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/2928-24-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2928-23-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2520-49-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit
behavioral1/memory/2520-53-0x0000000010000000-0x00000000101BA000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0008000000015d41-14.dat	family_gh0strat
behavioral1/memory/2928-24-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2928-23-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2520-49-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2520-53-0x0000000010000000-0x00000000101BA000-memory.dmp	family_gh0strat
behavioral1/memory/2520-56-0x0000000010000000-0x00000000101BA000-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\\259420396.txt"	AK47.exe

Executes dropped EXE 5 IoCs

pid	Process
2392	AK47.exe
2632	AK47.exe
2928	AK74.exe
2712	Ghiya.exe
2520	Ghiya.exe

Loads dropped DLL 6 IoCs

pid	Process
2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe
2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe
2392	AK47.exe
2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe
2064	svchost.exe
2712	Ghiya.exe

VMProtect packed file 2 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral1/memory/2940-0-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect
behavioral1/memory/2940-1-0x0000000000400000-0x0000000000760000-memory.dmp	vmprotect

Drops file in System32 directory 7 IoCs

description	ioc	Process
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
File opened for modification	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File created	C:\Windows\SysWOW64\259420396.txt	AK47.exe
File created	C:\Windows\SysWOW64\259420396.txt	AK47.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2928-21-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2928-24-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2928-23-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2520-49-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2520-53-0x0000000010000000-0x00000000101BA000-memory.dmp	upx
behavioral1/memory/2520-56-0x0000000010000000-0x00000000101BA000-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 6 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	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ghiya.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
2492	cmd.exe
2872	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2872	PING.EXE

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2928	AK74.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe
2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2392	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	30
PID 2940 wrote to memory of 2392	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	30
PID 2940 wrote to memory of 2392	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	30
PID 2940 wrote to memory of 2392	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	30
PID 2940 wrote to memory of 2632	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	31
PID 2940 wrote to memory of 2632	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	31
PID 2940 wrote to memory of 2632	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	31
PID 2940 wrote to memory of 2632	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	31
PID 2940 wrote to memory of 2928	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	32
PID 2940 wrote to memory of 2928	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	32
PID 2940 wrote to memory of 2928	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	32
PID 2940 wrote to memory of 2928	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	32
PID 2940 wrote to memory of 2928	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	32
PID 2940 wrote to memory of 2928	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	32
PID 2940 wrote to memory of 2928	2940	2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe	32
PID 2928 wrote to memory of 2492	2928	AK74.exe	36
PID 2928 wrote to memory of 2492	2928	AK74.exe	36
PID 2928 wrote to memory of 2492	2928	AK74.exe	36
PID 2928 wrote to memory of 2492	2928	AK74.exe	36
PID 2712 wrote to memory of 2520	2712	Ghiya.exe	38
PID 2712 wrote to memory of 2520	2712	Ghiya.exe	38
PID 2712 wrote to memory of 2520	2712	Ghiya.exe	38
PID 2712 wrote to memory of 2520	2712	Ghiya.exe	38
PID 2712 wrote to memory of 2520	2712	Ghiya.exe	38
PID 2712 wrote to memory of 2520	2712	Ghiya.exe	38
PID 2712 wrote to memory of 2520	2712	Ghiya.exe	38

C:\Users\Admin\AppData\Local\Temp\2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe
"C:\Users\Admin\AppData\Local\Temp\2fca36d498dbecc1253ec00b5923df8ed808fa0a796cebe9c45c718c4777325b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2940
- 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:2392
- 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:2632
- 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:2928
- - 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:2492
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2872
- 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:2684

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:2064

C:\Windows\SysWOW64\Ghiya.exe
C:\Windows\SysWOW64\Ghiya.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\SysWOW64\Ghiya.exe
  C:\Windows\SysWOW64\Ghiya.exe -acsi
  2⤵
  - Executes dropped EXE
  PID:2520

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\259420396.txt

Filesize
49KB

MD5
44215fb1afd01851e8d50825af757822

SHA1
34086fe4ee1bddfd4847b0bfce168454dfcaf182

SHA256
3895a5c579581aa4a8ead68abe5640ab8f3e86efd9118ffc127646b9cbbe5fc2

SHA512
13332f118af2775ce85379f0f3d23bca9c17813039956e3dba3a496444d9aea6dbf1ec3713fb5a335988f474369dbbb443f15fe23818f3f4a75930975f16b23c

Download Submit
memory/2520-49-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2520-53-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2520-56-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2928-21-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2928-24-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2928-23-0x0000000010000000-0x00000000101BA000-memory.dmp

Filesize
1.7MB

Download
memory/2940-0-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2940-1-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download

Analysis

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