gh0strat | 635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10

General

Target

635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10.exe
Size

1.3MB
MD5

75c351b054babaf553ca7c546efae7f7
SHA1

25b0619f3b133309aac7062354f4df81d4b95e3b
SHA256

635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10
SHA512

af29891879c75074a813cf980ea65d1be74c9f43dfd087a87f419e559b16e943f34a783c81e4ea2156f1e8e019f6bf2664a8751a6654bc1f7f7787938472ba3c
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNe:QHPkVOBTK

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 2 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2220-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/2760-19-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/2220-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/2760-19-0x0000000010000000-0x000000001019F000-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

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	sainbox.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

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

Deletes itself 1 IoCs

pid	Process
2468	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2568	sainbox.exe
2760	sainbox.exe

Loads dropped DLL 1 IoCs

pid	Process
2568	sainbox.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.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
2468	cmd.exe
2888	PING.EXE

Modifies data under HKEY_USERS 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	sainbox.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	sainbox.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	sainbox.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2888	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2760	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2220	635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10.exe
Token: SeLoadDriverPrivilege	2760	sainbox.exe
Token: 33	2760	sainbox.exe
Token: SeIncBasePriorityPrivilege	2760	sainbox.exe
Token: 33	2760	sainbox.exe
Token: SeIncBasePriorityPrivilege	2760	sainbox.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2468	2220	635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10.exe	30
PID 2220 wrote to memory of 2468	2220	635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10.exe	30
PID 2220 wrote to memory of 2468	2220	635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10.exe	30
PID 2220 wrote to memory of 2468	2220	635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10.exe	30
PID 2568 wrote to memory of 2760	2568	sainbox.exe	32
PID 2568 wrote to memory of 2760	2568	sainbox.exe	32
PID 2568 wrote to memory of 2760	2568	sainbox.exe	32
PID 2568 wrote to memory of 2760	2568	sainbox.exe	32
PID 2468 wrote to memory of 2888	2468	cmd.exe	33
PID 2468 wrote to memory of 2888	2468	cmd.exe	33
PID 2468 wrote to memory of 2888	2468	cmd.exe	33
PID 2468 wrote to memory of 2888	2468	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10.exe
"C:\Users\Admin\AppData\Local\Temp\635ee63fe0a10f9dc2ee0b8fb21e5af88f791c0cba857ebe907be4de538efd10.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2220
- 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\635EE6~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2468
- - 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:2888

C:\ProgramData\Application Data\Microsoft.NET\sainbox.exe
"C:\ProgramData\Application Data\Microsoft.NET\sainbox.exe" -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- C:\ProgramData\Application Data\Microsoft.NET\sainbox.exe
  "C:\ProgramData\Application Data\Microsoft.NET\sainbox.exe" -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2760

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\Microsoft.NET\sainbox.exe

Filesize
3.3MB

MD5
359b1099c5b49a19b757936e989470c7

SHA1
dd1872853705ff85c5b6d40cb921f221c8ba4387

SHA256
fe08b4c0ac528994aa904505396789f473ad3f578ff28f4ffeb750c697cf3946

SHA512
c45501510e9a2c10cb3ab4ac249d3dfcedacfb693bf68f5e784c1d8056ebbba541c09cb0f0570d13d27080bcacf63b021971628498e3675d280167daaf0baef2

Download Submit
memory/2220-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2760-19-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads