gh0strat | 3990e73698873edc23c24fa38957e9c1a2c5fdf2b598e02b6fcaad5b65e1d7ee

General

Target

6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe
Size

95KB
MD5

6a0d447e4df946ca11d280ecdd7633c6
SHA1

198ce948e6d25ef67ca0f959672c2cf8f81b1e38
SHA256

3990e73698873edc23c24fa38957e9c1a2c5fdf2b598e02b6fcaad5b65e1d7ee
SHA512

72f1357c8dc176aa059a674e20de25a9f14f5b72cf997553f10fe43103e0cbcbb31af9a7c131cec5b8706d6c1b202e01cf57febe9086c9a68a60a9706748c737
SSDEEP

1536:N73XFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prCRiik+:NThS4jHS8q/3nTzePCwNUh4E9qVk+

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x000800000001867d-18.dat	family_gh0strat
behavioral1/memory/3048-21-0x0000000000400000-0x000000000044C611-memory.dmp	family_gh0strat
behavioral1/memory/2508-23-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/2508-25-0x0000000020000000-0x0000000020027000-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

Deletes itself 1 IoCs

pid	Process
3048	fmrjcrorgm

Executes dropped EXE 1 IoCs

pid	Process
3048	fmrjcrorgm

Loads dropped DLL 2 IoCs

pid	Process
2088	6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe
2508	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\mdypqwpwgx	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	6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fmrjcrorgm
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 6 IoCs

description	ioc	Process
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
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

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3048	fmrjcrorgm
2508	svchost.exe
2508	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	3048	fmrjcrorgm
Token: SeBackupPrivilege	3048	fmrjcrorgm
Token: SeBackupPrivilege	3048	fmrjcrorgm
Token: SeRestorePrivilege	3048	fmrjcrorgm
Token: SeBackupPrivilege	2508	svchost.exe
Token: SeRestorePrivilege	2508	svchost.exe
Token: SeBackupPrivilege	2508	svchost.exe
Token: SeBackupPrivilege	2508	svchost.exe
Token: SeSecurityPrivilege	2508	svchost.exe
Token: SeSecurityPrivilege	2508	svchost.exe
Token: SeBackupPrivilege	2508	svchost.exe
Token: SeBackupPrivilege	2508	svchost.exe
Token: SeSecurityPrivilege	2508	svchost.exe
Token: SeBackupPrivilege	2508	svchost.exe
Token: SeBackupPrivilege	2508	svchost.exe
Token: SeSecurityPrivilege	2508	svchost.exe
Token: SeBackupPrivilege	2508	svchost.exe
Token: SeRestorePrivilege	2508	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 3048	2088	6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe	30
PID 2088 wrote to memory of 3048	2088	6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe	30
PID 2088 wrote to memory of 3048	2088	6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe	30
PID 2088 wrote to memory of 3048	2088	6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe	30
PID 2088 wrote to memory of 3048	2088	6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe	30
PID 2088 wrote to memory of 3048	2088	6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe	30
PID 2088 wrote to memory of 3048	2088	6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2088
- \??\c:\users\admin\appdata\local\fmrjcrorgm
  "C:\Users\Admin\AppData\Local\Temp\6a0d447e4df946ca11d280ecdd7633c6_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\6a0d447e4df946ca11d280ecdd7633c6_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3048

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:2508

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%\kcovo.cc3

Filesize
24.0MB

MD5
226bbd181753e683163241223c43ad8e

SHA1
60723bd21d69fa2b0f80b1a770bc7b3e75308569

SHA256
e98de4414989a689698bc615f455a7b5e9e5fbeb705904688c33b27cad7fe85e

SHA512
2b44b6bdf88b6cae0e80155a99c6071ea64a6c1c151caa053be521bd16ce8dc8056e16345c9d0225c51546cd8ab39ae5409b7833e9d2ef111be40c1def007c2a

Download Submit
\Users\Admin\AppData\Local\fmrjcrorgm

Filesize
24.7MB

MD5
43e425554b0844accafcd405779896b1

SHA1
97eac741f19d8d8689d82eba877b452269d34a0d

SHA256
5e55ee5db105b52d52aa6cc1b2536658346a5229f4a2b4bf0d2ccd6528447dee

SHA512
da876d9ba127cf1aa358d5324ef618ca0eaf3288aa588299b6c6b698d5c31f22a66ca21849128cb84ab2e765b4538cd7a1b9b4a65d3ecf221e4fc41cf4797cda

Download Submit
memory/2088-0-0x0000000000400000-0x000000000044C611-memory.dmp

Filesize
305KB

Download
memory/2088-3-0x0000000000230000-0x000000000027D000-memory.dmp

Filesize
308KB

Download
memory/2088-2-0x0000000000230000-0x000000000027D000-memory.dmp

Filesize
308KB

Download
memory/2088-7-0x0000000000450000-0x000000000049D000-memory.dmp

Filesize
308KB

Download
memory/2088-12-0x0000000000400000-0x000000000044C611-memory.dmp

Filesize
305KB

Download
memory/2508-22-0x0000000000140000-0x0000000000141000-memory.dmp

Filesize
4KB

Download
memory/2508-23-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2508-25-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/3048-13-0x0000000000400000-0x000000000044C611-memory.dmp

Filesize
305KB

Download
memory/3048-21-0x0000000000400000-0x000000000044C611-memory.dmp

Filesize
305KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads