gh0strat | ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741

General

Target

ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741.exe
Size

1.3MB
MD5

bdb73250b60f54e65fae8fecabf6e317
SHA1

129bbe60db2b329a736bc31587f15ccabee46ed8
SHA256

ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741
SHA512

fc9f7d2a682c6e46ab5a7a7bf48a29579d8052f9683ce712741c59891beccaad26825c1b39feec03376fc58738b93917f3d0fbf0fd168b84aa616ba38e01e40a
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNR:QHPkVOBTK

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/1464-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/224-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/880-17-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/1464-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/224-10-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/880-17-0x0000000010000000-0x000000001019F000-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

Executes dropped EXE 2 IoCs

pid	Process
224	sainbox.exe
880	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741.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	ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.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	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
3400	cmd.exe
2044	PING.EXE

Modifies data under HKEY_USERS 3 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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2044	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
880	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1464	ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741.exe
Token: SeLoadDriverPrivilege	880	sainbox.exe
Token: 33	880	sainbox.exe
Token: SeIncBasePriorityPrivilege	880	sainbox.exe
Token: 33	880	sainbox.exe
Token: SeIncBasePriorityPrivilege	880	sainbox.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 3400	1464	ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741.exe	84
PID 1464 wrote to memory of 3400	1464	ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741.exe	84
PID 1464 wrote to memory of 3400	1464	ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741.exe	84
PID 224 wrote to memory of 880	224	sainbox.exe	85
PID 224 wrote to memory of 880	224	sainbox.exe	85
PID 224 wrote to memory of 880	224	sainbox.exe	85
PID 3400 wrote to memory of 2044	3400	cmd.exe	87
PID 3400 wrote to memory of 2044	3400	cmd.exe	87
PID 3400 wrote to memory of 2044	3400	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741.exe
"C:\Users\Admin\AppData\Local\Temp\ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1464
- 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\CA0A8D~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3400
- - 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:2044

C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:224
- C:\Windows\SysWOW64\sainbox.exe
  C:\Windows\SysWOW64\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:880

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\sainbox.exe

Filesize
1.3MB

MD5
bdb73250b60f54e65fae8fecabf6e317

SHA1
129bbe60db2b329a736bc31587f15ccabee46ed8

SHA256
ca0a8d41c27c5898fe0cde5cc3ce0a1502399ad10c2ddfe97161641919075741

SHA512
fc9f7d2a682c6e46ab5a7a7bf48a29579d8052f9683ce712741c59891beccaad26825c1b39feec03376fc58738b93917f3d0fbf0fd168b84aa616ba38e01e40a

Download Submit
memory/224-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/880-17-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/1464-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads