gh0strat | 712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2

General

Target

712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe
Size

539KB
MD5

684cde79fb89775b4d4687381206503b
SHA1

d3f436fbb2e22e05e6ba8142c4d024456c71e48b
SHA256

712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2
SHA512

0a69a356e0a816e14b9c6942b51e989383dfd0186edc2877b8dc8d0e012d9179c06b19c03413c7acbf7735c3cc50812811b0b522b69bf21c893786563bf05979
SSDEEP

12288:+hymnwJFPNdgBAEHApqePJN1AmLM7uVq9sSX:+Umwrl2Ao7sJNlM7ymsS

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/3292-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3292-18-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/2644-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3680-20-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/2644-28-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit
behavioral2/memory/3680-38-0x0000000000400000-0x0000000000547000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/3292-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3292-18-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/2644-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3680-20-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/2644-28-0x0000000000400000-0x0000000000547000-memory.dmp	family_gh0strat
behavioral2/memory/3680-38-0x0000000000400000-0x0000000000547000-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	Meume.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"	Meume.exe

Executes dropped EXE 2 IoCs

pid	Process
2644	Meume.exe
3680	Meume.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Meume.exe	712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe
File opened for modification	C:\Windows\SysWOW64\Meume.exe	712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3292-0-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/files/0x0008000000023c90-9.dat	upx
behavioral2/memory/3292-18-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/3680-20-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/2644-28-0x0000000000400000-0x0000000000547000-memory.dmp	upx
behavioral2/memory/3680-38-0x0000000000400000-0x0000000000547000-memory.dmp	upx

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	Meume.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Meume.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	712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.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
3632	cmd.exe
2668	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2668	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3680	Meume.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3292	712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe
Token: SeLoadDriverPrivilege	3680	Meume.exe
Token: 33	3680	Meume.exe
Token: SeIncBasePriorityPrivilege	3680	Meume.exe
Token: 33	3680	Meume.exe
Token: SeIncBasePriorityPrivilege	3680	Meume.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3292 wrote to memory of 3632	3292	712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe	83
PID 3292 wrote to memory of 3632	3292	712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe	83
PID 3292 wrote to memory of 3632	3292	712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe	83
PID 2644 wrote to memory of 3680	2644	Meume.exe	84
PID 2644 wrote to memory of 3680	2644	Meume.exe	84
PID 2644 wrote to memory of 3680	2644	Meume.exe	84
PID 3632 wrote to memory of 2668	3632	cmd.exe	86
PID 3632 wrote to memory of 2668	3632	cmd.exe	86
PID 3632 wrote to memory of 2668	3632	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe
"C:\Users\Admin\AppData\Local\Temp\712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3292
- 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\712E27~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3632
- - 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:2668

C:\Windows\SysWOW64\Meume.exe
C:\Windows\SysWOW64\Meume.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Windows\SysWOW64\Meume.exe
  C:\Windows\SysWOW64\Meume.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:3680

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\Meume.exe

Filesize
539KB

MD5
684cde79fb89775b4d4687381206503b

SHA1
d3f436fbb2e22e05e6ba8142c4d024456c71e48b

SHA256
712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2

SHA512
0a69a356e0a816e14b9c6942b51e989383dfd0186edc2877b8dc8d0e012d9179c06b19c03413c7acbf7735c3cc50812811b0b522b69bf21c893786563bf05979

Download Submit
memory/2644-11-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2644-28-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/3292-0-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/3292-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/3292-18-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/3680-20-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download
memory/3680-38-0x0000000000400000-0x0000000000547000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads