gh0strat | 3de735a8224cce1ea620fee1064b8c5c5b0c468b084573c31c2f75514c109b45

General

Target

JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe
Size

96KB
MD5

3c5ceb6c6c80835baf0802d6bbfa8ce6
SHA1

d1c1006b714334854316ee9dec8cd23ea0af89a7
SHA256

3de735a8224cce1ea620fee1064b8c5c5b0c468b084573c31c2f75514c109b45
SHA512

1592c5f4884af431e020482aaae8480714737bffb7d805fc2f5d2b4b8e7bc0ae3ebb803b3fcb9e2cd0d16a10e1dd78c3d86dcf0cf534cd10e78ff148cc7044b5
SSDEEP

3072:nDS4jHS8q/3nTzePCwNUh4E9s8HfycaYu:n2428q/nTzePCwG7t7S

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0010000000018662-20.dat	family_gh0strat
behavioral1/memory/2324-23-0x0000000000400000-0x000000000044E258-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
2324	gdnkdhwple

Executes dropped EXE 1 IoCs

pid	Process
2324	gdnkdhwple

Loads dropped DLL 3 IoCs

pid	Process
2340	JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe
2340	JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe
1928	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 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\kemxqnfkbk	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gdnkdhwple

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 6 IoCs

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

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2324	gdnkdhwple
1928	svchost.exe
1928	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2324	gdnkdhwple
Token: SeBackupPrivilege	2324	gdnkdhwple
Token: SeBackupPrivilege	2324	gdnkdhwple
Token: SeRestorePrivilege	2324	gdnkdhwple
Token: SeBackupPrivilege	1928	svchost.exe
Token: SeRestorePrivilege	1928	svchost.exe
Token: SeBackupPrivilege	1928	svchost.exe
Token: SeBackupPrivilege	1928	svchost.exe
Token: SeSecurityPrivilege	1928	svchost.exe
Token: SeSecurityPrivilege	1928	svchost.exe
Token: SeBackupPrivilege	1928	svchost.exe
Token: SeBackupPrivilege	1928	svchost.exe
Token: SeSecurityPrivilege	1928	svchost.exe
Token: SeBackupPrivilege	1928	svchost.exe
Token: SeBackupPrivilege	1928	svchost.exe
Token: SeSecurityPrivilege	1928	svchost.exe
Token: SeBackupPrivilege	1928	svchost.exe
Token: SeRestorePrivilege	1928	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 2324	2340	JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe	30
PID 2340 wrote to memory of 2324	2340	JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe	30
PID 2340 wrote to memory of 2324	2340	JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe	30
PID 2340 wrote to memory of 2324	2340	JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340
- \??\c:\users\admin\appdata\local\gdnkdhwple
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_3c5ceb6c6c80835baf0802d6bbfa8ce6.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2324

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:1928

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

\??\c:\programdata\application data\storm\update\%sessionname%\efcxm.cc3

Filesize
21.0MB

MD5
224e69a16566d703b28390c3d7b5601b

SHA1
f385a9677e0b3f12768a9454da403dbcca12e112

SHA256
88a01a61a4cd6cddec908d4032b9287283b88e780edd20492ca3efef23a8eab9

SHA512
84e0611101caa75a949f30d1c35a95f179c0515b54b565a745ae4f9e866efed2cf9277f68cbe7bc5a07e849292a9df9b16be09ae019956cfeed558b5c0f88b05

Download Submit
\Users\Admin\AppData\Local\gdnkdhwple

Filesize
20.4MB

MD5
20df290fd8a704f4178c72c907fe624e

SHA1
c6d71a8e13c9900d3bc490e05165327e962fe2ca

SHA256
fbe6067f0e7c1a11bfb5255c82902880a6eee8c97a17e0ca2afb4a3884493930

SHA512
2ba228d5a84d60c8b767d7290b82873dcc5a28b715b20b873ed29aa40130eb0692d9b48af0466c7343c6a111bf309ba5a65b655a49e24c6452af799905b625fa

Download Submit
memory/1928-24-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2324-16-0x0000000000400000-0x000000000044E258-memory.dmp

Filesize
312KB

Download
memory/2324-23-0x0000000000400000-0x000000000044E258-memory.dmp

Filesize
312KB

Download
memory/2340-0-0x0000000000400000-0x000000000044E258-memory.dmp

Filesize
312KB

Download
memory/2340-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2340-14-0x0000000000230000-0x000000000027F000-memory.dmp

Filesize
316KB

Download
memory/2340-9-0x0000000000230000-0x000000000027F000-memory.dmp

Filesize
316KB

Download
memory/2340-13-0x0000000000400000-0x000000000044E258-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads