gh0strat | 361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0

General

Target

361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe
Size

611KB
MD5

40f8c9c8486eccb0342c69b0d05294b9
SHA1

d9b4fea9244170e4038fbdee74cfbf83746a76c3
SHA256

361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0
SHA512

207dcec07c40e756e17cde77e6e51d04a458d679df012f883e62a35a144a652cf0e62ee3205664a8b270114203537e3539cbbf081c9e1e9daad1de97ca4d2cfe
SSDEEP

12288:aFpuzZSkcBNrl5mTEUkDaSdJfpSaoNRVBUyMCe8VMM80B7qrI3iK1XBwZQ:aFmShDrngEUkDaiJfpSaoNRpMCe8CM8T

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Extracted

Family

gh0strat

C2

206.238.179.179

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2424-1-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/2424-18-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral1/memory/1960-25-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/1960-24-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit
behavioral1/memory/2368-23-0x0000000000400000-0x0000000000585000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral1/memory/2424-1-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/2424-18-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral1/memory/1960-25-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/1960-24-0x0000000000400000-0x0000000000585000-memory.dmp	family_gh0strat
behavioral1/memory/2368-23-0x0000000000400000-0x0000000000585000-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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Drops file in Drivers directory 1 IoCs

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

Deletes itself 1 IoCs

pid	Process
1528	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2368	Jbrja.exe
1960	Jbrja.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	Jbrja.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\B:	Jbrja.exe
File opened (read-only)	\??\I:	Jbrja.exe
File opened (read-only)	\??\S:	Jbrja.exe
File opened (read-only)	\??\X:	Jbrja.exe
File opened (read-only)	\??\Y:	Jbrja.exe
File opened (read-only)	\??\E:	Jbrja.exe
File opened (read-only)	\??\N:	Jbrja.exe
File opened (read-only)	\??\Q:	Jbrja.exe
File opened (read-only)	\??\R:	Jbrja.exe
File opened (read-only)	\??\T:	Jbrja.exe
File opened (read-only)	\??\G:	Jbrja.exe
File opened (read-only)	\??\K:	Jbrja.exe
File opened (read-only)	\??\O:	Jbrja.exe
File opened (read-only)	\??\V:	Jbrja.exe
File opened (read-only)	\??\W:	Jbrja.exe
File opened (read-only)	\??\H:	Jbrja.exe
File opened (read-only)	\??\J:	Jbrja.exe
File opened (read-only)	\??\L:	Jbrja.exe
File opened (read-only)	\??\M:	Jbrja.exe
File opened (read-only)	\??\P:	Jbrja.exe
File opened (read-only)	\??\U:	Jbrja.exe
File opened (read-only)	\??\Z:	Jbrja.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Jbrja.exe	361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe
File opened for modification	C:\Windows\SysWOW64\Jbrja.exe	361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2424-0-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral1/files/0x0007000000012118-9.dat	upx
behavioral1/memory/2368-10-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral1/memory/2424-18-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral1/memory/1960-24-0x0000000000400000-0x0000000000585000-memory.dmp	upx
behavioral1/memory/2368-23-0x0000000000400000-0x0000000000585000-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	361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Jbrja.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Jbrja.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
1528	cmd.exe
2904	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Jbrja.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Jbrja.exe

Modifies data under HKEY_USERS 12 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Jbrja.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Jbrja.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	Jbrja.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	Jbrja.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Jbrja.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Jbrja.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Jbrja.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Jbrja.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	Jbrja.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	Jbrja.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Jbrja.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Jbrja.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2904	PING.EXE

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe
1960	Jbrja.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1960	Jbrja.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2424	361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe
Token: SeLoadDriverPrivilege	1960	Jbrja.exe
Token: 33	1960	Jbrja.exe
Token: SeIncBasePriorityPrivilege	1960	Jbrja.exe
Token: 33	1960	Jbrja.exe
Token: SeIncBasePriorityPrivilege	1960	Jbrja.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 1528	2424	361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe	31
PID 2424 wrote to memory of 1528	2424	361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe	31
PID 2424 wrote to memory of 1528	2424	361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe	31
PID 2424 wrote to memory of 1528	2424	361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe	31
PID 2368 wrote to memory of 1960	2368	Jbrja.exe	33
PID 2368 wrote to memory of 1960	2368	Jbrja.exe	33
PID 2368 wrote to memory of 1960	2368	Jbrja.exe	33
PID 2368 wrote to memory of 1960	2368	Jbrja.exe	33
PID 1528 wrote to memory of 2904	1528	cmd.exe	34
PID 1528 wrote to memory of 2904	1528	cmd.exe	34
PID 1528 wrote to memory of 2904	1528	cmd.exe	34
PID 1528 wrote to memory of 2904	1528	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe
"C:\Users\Admin\AppData\Local\Temp\361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2424
- 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\361672~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1528
- - 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:2904

C:\Windows\SysWOW64\Jbrja.exe
C:\Windows\SysWOW64\Jbrja.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\Jbrja.exe
  C:\Windows\SysWOW64\Jbrja.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:1960

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

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

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\Jbrja.exe

Filesize
611KB

MD5
40f8c9c8486eccb0342c69b0d05294b9

SHA1
d9b4fea9244170e4038fbdee74cfbf83746a76c3

SHA256
361672610e68bd986413f7cbc8eea348092fc5159d8ff734fd9e644d9be10fe0

SHA512
207dcec07c40e756e17cde77e6e51d04a458d679df012f883e62a35a144a652cf0e62ee3205664a8b270114203537e3539cbbf081c9e1e9daad1de97ca4d2cfe

Download Submit
memory/1960-25-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/1960-24-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/2368-10-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download
memory/2368-23-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

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

Filesize
1.5MB

Download
memory/2424-1-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2424-18-0x0000000000400000-0x0000000000585000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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