gh0strat | 34076f2af24d5a94672159b3cf556eaaa7d83682a07bf2b25a0d7ae0bf9cb81f

General

Target

ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe
Size

96KB
MD5

ff21ef52320a24f3361cb01dd77d810e
SHA1

6e06bc83ac1d73515706d30982220443dc783db8
SHA256

34076f2af24d5a94672159b3cf556eaaa7d83682a07bf2b25a0d7ae0bf9cb81f
SHA512

9bfda558db57d15542629a20827e61464bc20437a1c4c95ad7ebc9615fe8b9d8c74e1a3c60e06ed03ae71a1849645ee74e38151e22f5119b9c3b203e393067aa
SSDEEP

1536:xhFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8pr5lqiOa8:x3S4jHS8q/3nTzePCwNUh4E95l8a8

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016890-19.dat	family_gh0strat
behavioral1/memory/2752-21-0x0000000000400000-0x000000000044E2EC-memory.dmp	family_gh0strat
behavioral1/memory/1572-25-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/1572-27-0x0000000020000000-0x0000000020027000-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
2752	gibyqhkncw

Executes dropped EXE 1 IoCs

pid	Process
2752	gibyqhkncw

Loads dropped DLL 3 IoCs

pid	Process
1448	ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe
1448	ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe
1572	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\wtrilkduup	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	ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gibyqhkncw
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
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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2752	gibyqhkncw
1572	svchost.exe
1572	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2752	gibyqhkncw
Token: SeBackupPrivilege	2752	gibyqhkncw
Token: SeBackupPrivilege	2752	gibyqhkncw
Token: SeRestorePrivilege	2752	gibyqhkncw
Token: SeBackupPrivilege	1572	svchost.exe
Token: SeRestorePrivilege	1572	svchost.exe
Token: SeBackupPrivilege	1572	svchost.exe
Token: SeBackupPrivilege	1572	svchost.exe
Token: SeSecurityPrivilege	1572	svchost.exe
Token: SeSecurityPrivilege	1572	svchost.exe
Token: SeBackupPrivilege	1572	svchost.exe
Token: SeBackupPrivilege	1572	svchost.exe
Token: SeSecurityPrivilege	1572	svchost.exe
Token: SeBackupPrivilege	1572	svchost.exe
Token: SeBackupPrivilege	1572	svchost.exe
Token: SeSecurityPrivilege	1572	svchost.exe
Token: SeBackupPrivilege	1572	svchost.exe
Token: SeRestorePrivilege	1572	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 2752	1448	ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe	30
PID 1448 wrote to memory of 2752	1448	ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe	30
PID 1448 wrote to memory of 2752	1448	ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe	30
PID 1448 wrote to memory of 2752	1448	ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1448
- \??\c:\users\admin\appdata\local\gibyqhkncw
  "C:\Users\Admin\AppData\Local\Temp\ff21ef52320a24f3361cb01dd77d810e_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\ff21ef52320a24f3361cb01dd77d810e_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2752

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:1572

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%\ujoke.cc3

Filesize
19.1MB

MD5
eae290a3f6c8eb29c8d55ded7378fb9f

SHA1
36ce409329bd609a78cc275c07d997b06f0ed951

SHA256
025cda368b0fff69d8af0b3035e45faf42c987c45b82190ae0c9b5569703713d

SHA512
918868c6fcbbad807d05eb2bd1867d52441adfe5a054732e0ce44d155945bdf1e20ecb93e2f107050d2db4ff33bea1fa92537116956b0ec1311da7587b2db659

Download Submit
\Users\Admin\AppData\Local\gibyqhkncw

Filesize
21.3MB

MD5
3756586bf4cd8c113f2fcdd95cf9f4fe

SHA1
a0d24f10bbef53804f924763c24c1fc0422acb31

SHA256
6da4ecd981c50bc2f71a3fc90dd2b4cbbafa8058f65709ac03f478fdfd156aa3

SHA512
e5836dcf47efa2e243d879adc5c6b0eae4737227e3c2a12b0cea52c7902f5642bcdf88c4ffbb3714f67ec9d23d6df0d6e2631d8d62e1bb6efc2dc1c827c7aaf6

Download Submit
memory/1448-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1448-1-0x0000000000400000-0x000000000044E2EC-memory.dmp

Filesize
312KB

Download
memory/1448-13-0x0000000000230000-0x000000000027F000-memory.dmp

Filesize
316KB

Download
memory/1448-12-0x0000000000400000-0x000000000044E2EC-memory.dmp

Filesize
312KB

Download
memory/1448-24-0x0000000000230000-0x000000000027F000-memory.dmp

Filesize
316KB

Download
memory/1572-22-0x0000000000140000-0x0000000000141000-memory.dmp

Filesize
4KB

Download
memory/1572-25-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/1572-27-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2752-16-0x0000000000400000-0x000000000044E2EC-memory.dmp

Filesize
312KB

Download
memory/2752-21-0x0000000000400000-0x000000000044E2EC-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads