gh0strat | 32392984f2b574a0c62e743e7b80d97bc41b0b5889d86c728037fc0940675805

General

Target

JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe
Size

96KB
MD5

518d7eaf92eb9c295ad8bd0a443fafe3
SHA1

ff605b5c4261a6a5e49060edaf5f70e8719b6032
SHA256

32392984f2b574a0c62e743e7b80d97bc41b0b5889d86c728037fc0940675805
SHA512

a4e6c967a97de41a00b22145fe457ba42f81cf3ac61217cdafb580007678247ec25a0f50a043b2cd15c3eb82138cde74812af57c3e8d1c76c596121684761b6c
SSDEEP

1536:2RFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prxIZtCb:2HS4jHS8q/3nTzePCwNUh4E9uZtCb

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0008000000019394-22.dat	family_gh0strat
behavioral1/memory/3036-23-0x0000000000400000-0x000000000044E29C-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

Deletes itself 1 IoCs

pid	Process
3036	cvmdiwpwop

Executes dropped EXE 1 IoCs

pid	Process
3036	cvmdiwpwop

Loads dropped DLL 3 IoCs

pid	Process
1656	JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe
1656	JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe
2104	svchost.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\nomrvpfcqk	svchost.exe
File created	C:\Windows\SysWOW64\nvogyelxey	svchost.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	cvmdiwpwop
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.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	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3036	cvmdiwpwop
2104	svchost.exe
2104	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	3036	cvmdiwpwop
Token: SeBackupPrivilege	3036	cvmdiwpwop
Token: SeBackupPrivilege	3036	cvmdiwpwop
Token: SeRestorePrivilege	3036	cvmdiwpwop
Token: SeBackupPrivilege	2104	svchost.exe
Token: SeRestorePrivilege	2104	svchost.exe
Token: SeBackupPrivilege	2104	svchost.exe
Token: SeBackupPrivilege	2104	svchost.exe
Token: SeSecurityPrivilege	2104	svchost.exe
Token: SeSecurityPrivilege	2104	svchost.exe
Token: SeBackupPrivilege	2104	svchost.exe
Token: SeBackupPrivilege	2104	svchost.exe
Token: SeSecurityPrivilege	2104	svchost.exe
Token: SeBackupPrivilege	2104	svchost.exe
Token: SeBackupPrivilege	2104	svchost.exe
Token: SeSecurityPrivilege	2104	svchost.exe
Token: SeBackupPrivilege	2104	svchost.exe
Token: SeRestorePrivilege	2104	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 3036	1656	JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe	29
PID 1656 wrote to memory of 3036	1656	JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe	29
PID 1656 wrote to memory of 3036	1656	JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe	29
PID 1656 wrote to memory of 3036	1656	JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe	29

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1656
- \??\c:\users\admin\appdata\local\cvmdiwpwop
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_518d7eaf92eb9c295ad8bd0a443fafe3.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3036

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\Storm\update\%SESSIONNAME%\wtpkq.cc3

Filesize
22.1MB

MD5
166a30ea2662c79c5c2bcd67c1914213

SHA1
c8e46051f3c975f9731a2104e66a250e2b08303f

SHA256
db6c64345a60888783ef4a16c4e70e2bd9e162721cc474554dcc7da6bcbc63ae

SHA512
7162cb48ee2aca10535a10936583a640cfc1841a0fae5fa4181d8b688fb59488cd5ab3df60cad6bcea85256c8f375ae2fbfd425fab700e36b470b41b626dae42

Download Submit
\Users\Admin\AppData\Local\cvmdiwpwop

Filesize
24.5MB

MD5
9557f37dbc4bce049aba19895505b1ba

SHA1
b2b8b6ea101353ce8ef44994855d5aef3acfa28f

SHA256
026d4c4892bb517f73cd6758d60e575e581a1eb4f39f7d83bf9ca6a6a712ef2c

SHA512
0f323f7a1b5fb54f5ab116e2d4fb0110e3c1d98153924adc2bdcb6f0b270a2f01e2a90b817eac8f36fcbaf3198556051b073ba00f254c25faa0a38c026806383

Download Submit
memory/1656-0-0x0000000000400000-0x000000000044E29C-memory.dmp

Filesize
312KB

Download
memory/1656-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1656-7-0x00000000003B0000-0x00000000003FF000-memory.dmp

Filesize
316KB

Download
memory/1656-13-0x00000000003B0000-0x00000000003FF000-memory.dmp

Filesize
316KB

Download
memory/1656-15-0x0000000000400000-0x000000000044E29C-memory.dmp

Filesize
312KB

Download
memory/2104-24-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/3036-17-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/3036-18-0x0000000000400000-0x000000000044E29C-memory.dmp

Filesize
312KB

Download
memory/3036-23-0x0000000000400000-0x000000000044E29C-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads