gh0strat | 4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d

General

Target

4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe
Size

1.4MB
MD5

ffc6d0240c4f4f5e2041fafbaa6d19c3
SHA1

9e87d78c540dee6a9a79e6d8c46767fe72e723ed
SHA256

4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d
SHA512

b28446f466725118635677c6fb668c5778dbe3dd8c9be028f0d7793d8b29da457631a2728b8a6abf517708947bdb001bc71223c536afa84ab37b1527339415d7
SSDEEP

24576:F39WkOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:59qHPkVOBTK

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 1 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/2668-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2668-0-0x0000000010000000-0x000000001019F000-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
Drops file in Drivers directory 1 IoCs

Processes:

Phxph.exe

description ioc process

File created C:\Windows\system32\drivers\QAssist.sys Phxph.exe
Sets service image path in registry 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Processes:

Phxph.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" Phxph.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2924 cmd.exe
Executes dropped EXE 2 IoCs

Processes:

Phxph.exePhxph.exe

pid process

2820 Phxph.exe
2788 Phxph.exe
Loads dropped DLL 1 IoCs

Processes:

Phxph.exe

pid process

2820 Phxph.exe

description	ioc	process
File created	C:\Windows\system32\drivers\QAssist.sys	Phxph.exe

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

pid	process
2924	cmd.exe

pid	process
2820	Phxph.exe
2788	Phxph.exe

pid	process
2820	Phxph.exe

Drops file in System32 directory 2 IoCs

Processes:

4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe

description	ioc	process
File created	C:\Windows\SysWOW64\Phxph.exe	4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe
File opened for modification	C:\Windows\SysWOW64\Phxph.exe	4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe

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

Processes:

4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exePhxph.exePhxph.execmd.exePING.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Phxph.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Phxph.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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

Processes:

cmd.exePING.EXE

pid process

2924 cmd.exe
2552 PING.EXE
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2552 PING.EXE
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

Phxph.exe

pid process

2788 Phxph.exe

pid	process
2924	cmd.exe
2552	PING.EXE

pid	process
2552	PING.EXE

pid	process
2788	Phxph.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exePhxph.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2668	4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe
Token: SeLoadDriverPrivilege	2788	Phxph.exe
Token: 33	2788	Phxph.exe
Token: SeIncBasePriorityPrivilege	2788	Phxph.exe
Token: 33	2788	Phxph.exe
Token: SeIncBasePriorityPrivilege	2788	Phxph.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exePhxph.execmd.exe

description	pid	process	target process
PID 2668 wrote to memory of 2924	2668	4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe	cmd.exe
PID 2668 wrote to memory of 2924	2668	4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe	cmd.exe
PID 2668 wrote to memory of 2924	2668	4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe	cmd.exe
PID 2668 wrote to memory of 2924	2668	4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe	cmd.exe
PID 2820 wrote to memory of 2788	2820	Phxph.exe	Phxph.exe
PID 2820 wrote to memory of 2788	2820	Phxph.exe	Phxph.exe
PID 2820 wrote to memory of 2788	2820	Phxph.exe	Phxph.exe
PID 2820 wrote to memory of 2788	2820	Phxph.exe	Phxph.exe
PID 2924 wrote to memory of 2552	2924	cmd.exe	PING.EXE
PID 2924 wrote to memory of 2552	2924	cmd.exe	PING.EXE
PID 2924 wrote to memory of 2552	2924	cmd.exe	PING.EXE
PID 2924 wrote to memory of 2552	2924	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe
"C:\Users\Admin\AppData\Local\Temp\4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2668
- 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\4CD3F6~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2924
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2552

C:\Windows\SysWOW64\Phxph.exe
C:\Windows\SysWOW64\Phxph.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\Phxph.exe
  C:\Windows\SysWOW64\Phxph.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

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

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Downloads

C:\Windows\SysWOW64\Phxph.exe

Filesize
1.4MB

MD5
ffc6d0240c4f4f5e2041fafbaa6d19c3

SHA1
9e87d78c540dee6a9a79e6d8c46767fe72e723ed

SHA256
4cd3f691d32573b601acfe6824baee7e6a7a2b4741d5ab6ff053fcc1abd9c79d

SHA512
b28446f466725118635677c6fb668c5778dbe3dd8c9be028f0d7793d8b29da457631a2728b8a6abf517708947bdb001bc71223c536afa84ab37b1527339415d7

Download Submit
memory/2668-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads