gh0strat | c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806

General

Target

c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806.exe
Size

3.3MB
MD5

49ea3f9820ff76c8ed8b30460f27ae3b
SHA1

9012bb49aaeff8bb156f4a4bc6a3dba258d48b3a
SHA256

c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806
SHA512

1540117345ec2a9cbaa7a32d1c34d9cd6ae38bc25fd672eaa11b2f9806ecc13581e7011e9855546fb73471573d7cda274fdc72dcc136dd0819b65886ec903696
SSDEEP

24576:VOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNGt:IHPkVOBTKo

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/4808-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/1320-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4068-18-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4808-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/1320-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4068-18-0x0000000010000000-0x000000001019F000-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
1320	sainbox.exe
4068	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806.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	c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806.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
3112	cmd.exe
4132	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
4132	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4068	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4808	c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806.exe
Token: SeLoadDriverPrivilege	4068	sainbox.exe
Token: 33	4068	sainbox.exe
Token: SeIncBasePriorityPrivilege	4068	sainbox.exe
Token: 33	4068	sainbox.exe
Token: SeIncBasePriorityPrivilege	4068	sainbox.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 3112	4808	c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806.exe	83
PID 4808 wrote to memory of 3112	4808	c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806.exe	83
PID 4808 wrote to memory of 3112	4808	c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806.exe	83
PID 1320 wrote to memory of 4068	1320	sainbox.exe	84
PID 1320 wrote to memory of 4068	1320	sainbox.exe	84
PID 1320 wrote to memory of 4068	1320	sainbox.exe	84
PID 3112 wrote to memory of 4132	3112	cmd.exe	86
PID 3112 wrote to memory of 4132	3112	cmd.exe	86
PID 3112 wrote to memory of 4132	3112	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806.exe
"C:\Users\Admin\AppData\Local\Temp\c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4808
- 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\C90BE2~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3112
- - 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:4132

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:1320
- 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:4068

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
3.3MB

MD5
49ea3f9820ff76c8ed8b30460f27ae3b

SHA1
9012bb49aaeff8bb156f4a4bc6a3dba258d48b3a

SHA256
c90be25671dac8b84451aceb0081d641de29b765b54adf757f8624eebbe72806

SHA512
1540117345ec2a9cbaa7a32d1c34d9cd6ae38bc25fd672eaa11b2f9806ecc13581e7011e9855546fb73471573d7cda274fdc72dcc136dd0819b65886ec903696

Download Submit
memory/1320-11-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4068-18-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4808-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads