gh0strat | 5aba57ab41497c3bfad45747150d57e6882d400d8236a76745910767bf700f51

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-09-2024 04:27

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General

Target

SoftUpdate.exe
Size

27.4MB
MD5

8f90f5f1bc669ff80955cd3572329e8e
SHA1

330bb9551a5954a9bc5eda51e32bc662aa01fa2a
SHA256

5aba57ab41497c3bfad45747150d57e6882d400d8236a76745910767bf700f51
SHA512

d9747c2d9d564ddb37a2836f1a9850b379469c5846ba50eefc1d9438e5becf5d2c9bd05a044bea5747a7cc67c4cd75896953a3acd304df59bc57f66f4a351419
SSDEEP

786432:JPJwWwvIRclT1jeU+NK7q7nyI3S4YqUZi:9wlTdeBU7I3SDqT

Score

10^/10

gh0strat purplefox discovery rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 1 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/584-17405-0x0000000000400000-0x0000000001F5F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/584-17405-0x0000000000400000-0x0000000001F5F000-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

Deletes itself 1 IoCs

pid	Process
10180	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
4636	Phxph.exe
10196	Phxph.exe

Loads dropped DLL 1 IoCs

pid	Process
4636	Phxph.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\S:	Phxph.exe
File opened (read-only)	\??\U:	Phxph.exe
File opened (read-only)	\??\W:	Phxph.exe
File opened (read-only)	\??\G:	Phxph.exe
File opened (read-only)	\??\J:	Phxph.exe
File opened (read-only)	\??\K:	Phxph.exe
File opened (read-only)	\??\Q:	Phxph.exe
File opened (read-only)	\??\E:	Phxph.exe
File opened (read-only)	\??\T:	Phxph.exe
File opened (read-only)	\??\P:	Phxph.exe
File opened (read-only)	\??\B:	Phxph.exe
File opened (read-only)	\??\I:	Phxph.exe
File opened (read-only)	\??\N:	Phxph.exe
File opened (read-only)	\??\O:	Phxph.exe
File opened (read-only)	\??\V:	Phxph.exe
File opened (read-only)	\??\X:	Phxph.exe
File opened (read-only)	\??\Y:	Phxph.exe
File opened (read-only)	\??\Z:	Phxph.exe
File opened (read-only)	\??\H:	Phxph.exe
File opened (read-only)	\??\L:	Phxph.exe
File opened (read-only)	\??\M:	Phxph.exe
File opened (read-only)	\??\R:	Phxph.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Phxph.exe	SoftUpdate.exe
File created	C:\Windows\SysWOW64\Phxph.exe	SoftUpdate.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 29 IoCs

pid	Process
584	SoftUpdate.exe
584	SoftUpdate.exe
584	SoftUpdate.exe
584	SoftUpdate.exe
584	SoftUpdate.exe
4636	Phxph.exe
584	SoftUpdate.exe
4636	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SoftUpdate.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
10180	cmd.exe
10880	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Phxph.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Phxph.exe

Modifies data under HKEY_USERS 11 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Phxph.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Phxph.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Phxph.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	Phxph.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	Phxph.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Phxph.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie	Phxph.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Phxph.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Phxph.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Phxph.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Phxph.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
10880	PING.EXE

Suspicious behavior: EnumeratesProcesses 35 IoCs

pid	Process
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe
10196	Phxph.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	584	SoftUpdate.exe
Token: 33	10196	Phxph.exe
Token: SeIncBasePriorityPrivilege	10196	Phxph.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 584 wrote to memory of 10180	584	SoftUpdate.exe	31
PID 584 wrote to memory of 10180	584	SoftUpdate.exe	31
PID 584 wrote to memory of 10180	584	SoftUpdate.exe	31
PID 584 wrote to memory of 10180	584	SoftUpdate.exe	31
PID 584 wrote to memory of 10180	584	SoftUpdate.exe	31
PID 584 wrote to memory of 10180	584	SoftUpdate.exe	31
PID 584 wrote to memory of 10180	584	SoftUpdate.exe	31
PID 4636 wrote to memory of 10196	4636	Phxph.exe	32
PID 4636 wrote to memory of 10196	4636	Phxph.exe	32
PID 4636 wrote to memory of 10196	4636	Phxph.exe	32
PID 4636 wrote to memory of 10196	4636	Phxph.exe	32
PID 10180 wrote to memory of 10880	10180	cmd.exe	34
PID 10180 wrote to memory of 10880	10180	cmd.exe	34
PID 10180 wrote to memory of 10880	10180	cmd.exe	34
PID 10180 wrote to memory of 10880	10180	cmd.exe	34
PID 10180 wrote to memory of 10880	10180	cmd.exe	34
PID 10180 wrote to memory of 10880	10180	cmd.exe	34
PID 10180 wrote to memory of 10880	10180	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\SoftUpdate.exe
"C:\Users\Admin\AppData\Local\Temp\SoftUpdate.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:584
- 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\SOFTUP~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:10180
- - 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:10880

C:\Windows\SysWOW64\Phxph.exe
C:\Windows\SysWOW64\Phxph.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Windows\SysWOW64\Phxph.exe
  C:\Windows\SysWOW64\Phxph.exe -acsi
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:10196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\Phxph.exe

Filesize
27.4MB

MD5
8f90f5f1bc669ff80955cd3572329e8e

SHA1
330bb9551a5954a9bc5eda51e32bc662aa01fa2a

SHA256
5aba57ab41497c3bfad45747150d57e6882d400d8236a76745910767bf700f51

SHA512
d9747c2d9d564ddb37a2836f1a9850b379469c5846ba50eefc1d9438e5becf5d2c9bd05a044bea5747a7cc67c4cd75896953a3acd304df59bc57f66f4a351419

Download Submit
memory/584-868-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-1-0x0000000002600000-0x000000000415F000-memory.dmp

Filesize
27.4MB

Download
memory/584-634-0x0000000002600000-0x000000000415F000-memory.dmp

Filesize
27.4MB

Download
memory/584-864-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-823-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-820-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-816-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-832-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-814-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-813-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-842-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-850-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-858-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-866-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-874-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-872-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-870-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-0-0x0000000000400000-0x0000000001F5F000-memory.dmp

Filesize
27.4MB

Download
memory/584-818-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-2-0x0000000075010000-0x0000000075057000-memory.dmp

Filesize
284KB

Download
memory/584-856-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-860-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-854-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-852-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-848-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-847-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-844-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-840-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-838-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-836-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-834-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-830-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-828-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-826-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-824-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-862-0x0000000003FD0000-0x00000000040E1000-memory.dmp

Filesize
1.1MB

Download
memory/584-17405-0x0000000000400000-0x0000000001F5F000-memory.dmp

Filesize
27.4MB

Download