gh0strat | 1a03e49c1d3e121d435402e3925e2bc334ca6b49d09dfefc6df6b9f8e876858b

Analysis

max time kernel
151s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-09-2024 09:37

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General

Target

SoftUpdate.exe
Size

27.5MB
MD5

533d850489f356c37abd269c47e57d1d
SHA1

59697ad75f1ee2758b62f9707f7e2bd2586a1356
SHA256

1a03e49c1d3e121d435402e3925e2bc334ca6b49d09dfefc6df6b9f8e876858b
SHA512

4196096d126b87343c606dba6fcb0a3b9535e9e1e3b1209aa821fec66e81be2d99cc91603b71bcbc387c14eca5074e576f22a563067e716d084f5f0d3a199563
SSDEEP

786432:6uPP/Ud4Iw384Z16Amyd/OTDOPuBlm458zrd:6uPXUzwtLSQmBwzh

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/1424-17407-0x0000000000400000-0x0000000001F8A000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/1424-17407-0x0000000000400000-0x0000000001F8A000-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
9760	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
7520	Dtldt.exe
9792	Dtldt.exe

Loads dropped DLL 1 IoCs

pid	Process
7520	Dtldt.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)	\??\N:	Dtldt.exe
File opened (read-only)	\??\W:	Dtldt.exe
File opened (read-only)	\??\X:	Dtldt.exe
File opened (read-only)	\??\Z:	Dtldt.exe
File opened (read-only)	\??\H:	Dtldt.exe
File opened (read-only)	\??\J:	Dtldt.exe
File opened (read-only)	\??\Q:	Dtldt.exe
File opened (read-only)	\??\S:	Dtldt.exe
File opened (read-only)	\??\Y:	Dtldt.exe
File opened (read-only)	\??\I:	Dtldt.exe
File opened (read-only)	\??\M:	Dtldt.exe
File opened (read-only)	\??\K:	Dtldt.exe
File opened (read-only)	\??\L:	Dtldt.exe
File opened (read-only)	\??\U:	Dtldt.exe
File opened (read-only)	\??\B:	Dtldt.exe
File opened (read-only)	\??\E:	Dtldt.exe
File opened (read-only)	\??\P:	Dtldt.exe
File opened (read-only)	\??\R:	Dtldt.exe
File opened (read-only)	\??\T:	Dtldt.exe
File opened (read-only)	\??\V:	Dtldt.exe
File opened (read-only)	\??\G:	Dtldt.exe
File opened (read-only)	\??\O:	Dtldt.exe

Drops file in System32 directory 2 IoCs

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

Suspicious use of NtSetInformationThreadHideFromDebugger 33 IoCs

pid	Process
1424	SoftUpdate.exe
1424	SoftUpdate.exe
1424	SoftUpdate.exe
1424	SoftUpdate.exe
1424	SoftUpdate.exe
7520	Dtldt.exe
1424	SoftUpdate.exe
1424	SoftUpdate.exe
7520	Dtldt.exe
1424	SoftUpdate.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.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	Dtldt.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dtldt.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
9760	cmd.exe
9844	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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Dtldt.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Dtldt.exe

Modifies data under HKEY_USERS 12 IoCs

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
9844	PING.EXE

Suspicious behavior: EnumeratesProcesses 35 IoCs

pid	Process
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe
9792	Dtldt.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1424	SoftUpdate.exe
Token: 33	9792	Dtldt.exe
Token: SeIncBasePriorityPrivilege	9792	Dtldt.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1424 wrote to memory of 9760	1424	SoftUpdate.exe	30
PID 1424 wrote to memory of 9760	1424	SoftUpdate.exe	30
PID 1424 wrote to memory of 9760	1424	SoftUpdate.exe	30
PID 1424 wrote to memory of 9760	1424	SoftUpdate.exe	30
PID 1424 wrote to memory of 9760	1424	SoftUpdate.exe	30
PID 1424 wrote to memory of 9760	1424	SoftUpdate.exe	30
PID 1424 wrote to memory of 9760	1424	SoftUpdate.exe	30
PID 7520 wrote to memory of 9792	7520	Dtldt.exe	32
PID 7520 wrote to memory of 9792	7520	Dtldt.exe	32
PID 7520 wrote to memory of 9792	7520	Dtldt.exe	32
PID 7520 wrote to memory of 9792	7520	Dtldt.exe	32
PID 9760 wrote to memory of 9844	9760	cmd.exe	33
PID 9760 wrote to memory of 9844	9760	cmd.exe	33
PID 9760 wrote to memory of 9844	9760	cmd.exe	33
PID 9760 wrote to memory of 9844	9760	cmd.exe	33
PID 9760 wrote to memory of 9844	9760	cmd.exe	33
PID 9760 wrote to memory of 9844	9760	cmd.exe	33
PID 9760 wrote to memory of 9844	9760	cmd.exe	33

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:1424
- 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:9760
- - 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:9844

C:\Windows\SysWOW64\Dtldt.exe
C:\Windows\SysWOW64\Dtldt.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:7520
- C:\Windows\SysWOW64\Dtldt.exe
  C:\Windows\SysWOW64\Dtldt.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:9792

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

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Downloads

C:\Windows\SysWOW64\Dtldt.exe

Filesize
27.5MB

MD5
533d850489f356c37abd269c47e57d1d

SHA1
59697ad75f1ee2758b62f9707f7e2bd2586a1356

SHA256
1a03e49c1d3e121d435402e3925e2bc334ca6b49d09dfefc6df6b9f8e876858b

SHA512
4196096d126b87343c606dba6fcb0a3b9535e9e1e3b1209aa821fec66e81be2d99cc91603b71bcbc387c14eca5074e576f22a563067e716d084f5f0d3a199563

Download Submit
memory/1424-874-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-1-0x0000000002610000-0x000000000419A000-memory.dmp

Filesize
27.5MB

Download
memory/1424-279-0x0000000002610000-0x000000000419A000-memory.dmp

Filesize
27.5MB

Download
memory/1424-870-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-830-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-832-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-844-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-828-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-826-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-824-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-822-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-820-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-818-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-816-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-858-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-814-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-872-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-0-0x0000000000400000-0x0000000001F8A000-memory.dmp

Filesize
27.5MB

Download
memory/1424-813-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-2-0x00000000762D0000-0x0000000076317000-memory.dmp

Filesize
284KB

Download
memory/1424-864-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-866-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-862-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-860-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-856-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-854-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-852-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-850-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-848-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-846-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-842-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-840-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-838-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-836-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-834-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-868-0x0000000003E10000-0x0000000003F21000-memory.dmp

Filesize
1.1MB

Download
memory/1424-17407-0x0000000000400000-0x0000000001F8A000-memory.dmp

Filesize
27.5MB

Download