gh0strat | bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a

General

Target

bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a.exe
Size

611KB
MD5

20e134cef5baf4c883e4471e2c98976b
SHA1

bb8a8eb0c5d5ae0dce8ca5b24257a12ca1783468
SHA256

bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a
SHA512

a8a4fad73071b5d7e81076deaaed38f33ed2b59571d14d0a6ed1b66713b31459fed0113c87258919575aea32970c7b30f0b82d709bde0569b0768b3ab97ac8aa
SSDEEP

12288:/FpuzZSkcBNrl5mTEUkDaSdJfpSaoNRVBUyMCe8VMM80B7qrI3iK1XBwZQ:/FmShDrngEUkDaiJfpSaoNRpMCe8CM8T

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/3940-2-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/5104-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/3940-18-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral2/memory/5104-19-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral2/memory/2424-21-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/2424-36-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/3940-2-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/5104-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/3940-18-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral2/memory/5104-19-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral2/memory/2424-21-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/2424-36-0x0000000000400000-0x0000000000585000-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	Mnfvn.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"	Mnfvn.exe

Executes dropped EXE 2 IoCs

pid	Process
5104	Mnfvn.exe
2424	Mnfvn.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Mnfvn.exe	bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a.exe
File opened for modification	C:\Windows\SysWOW64\Mnfvn.exe	bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3940-0-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/files/0x000b000000023b8b-9.dat	upx
behavioral2/memory/3940-18-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/memory/5104-19-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral2/memory/2424-36-0x0000000000400000-0x0000000000585000-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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Mnfvn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Mnfvn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
4856	cmd.exe
1556	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1556	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2424	Mnfvn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3940	bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a.exe
Token: SeLoadDriverPrivilege	2424	Mnfvn.exe
Token: 33	2424	Mnfvn.exe
Token: SeIncBasePriorityPrivilege	2424	Mnfvn.exe
Token: 33	2424	Mnfvn.exe
Token: SeIncBasePriorityPrivilege	2424	Mnfvn.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 4856	3940	bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a.exe	85
PID 3940 wrote to memory of 4856	3940	bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a.exe	85
PID 3940 wrote to memory of 4856	3940	bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a.exe	85
PID 5104 wrote to memory of 2424	5104	Mnfvn.exe	87
PID 5104 wrote to memory of 2424	5104	Mnfvn.exe	87
PID 5104 wrote to memory of 2424	5104	Mnfvn.exe	87
PID 4856 wrote to memory of 1556	4856	cmd.exe	88
PID 4856 wrote to memory of 1556	4856	cmd.exe	88
PID 4856 wrote to memory of 1556	4856	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a.exe
"C:\Users\Admin\AppData\Local\Temp\bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3940
- 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\BEF42F~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4856
- - 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:1556

C:\Windows\SysWOW64\Mnfvn.exe
C:\Windows\SysWOW64\Mnfvn.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5104
- C:\Windows\SysWOW64\Mnfvn.exe
  C:\Windows\SysWOW64\Mnfvn.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:2424

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\Mnfvn.exe

Filesize
611KB

MD5
20e134cef5baf4c883e4471e2c98976b

SHA1
bb8a8eb0c5d5ae0dce8ca5b24257a12ca1783468

SHA256
bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a

SHA512
a8a4fad73071b5d7e81076deaaed38f33ed2b59571d14d0a6ed1b66713b31459fed0113c87258919575aea32970c7b30f0b82d709bde0569b0768b3ab97ac8aa

Download Submit
memory/2424-21-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2424-36-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/3940-0-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/3940-2-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/3940-18-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/5104-11-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/5104-19-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads