gh0strat | 32ab40a2a278d102e9f4334a411529e35207a51902a54c2ce44d7566c31a0ca0

General

Target

JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe
Size

96KB
MD5

51acce6c0ffe9c5eaac2f99a5547e538
SHA1

054f5fdef50e290f9dc6bb3fd01c04609eb4a2be
SHA256

32ab40a2a278d102e9f4334a411529e35207a51902a54c2ce44d7566c31a0ca0
SHA512

eec44e81d134573eb6b6c59b9adbcd2102d7e7db07e36de756f7cf9d675141e4e0fe905dcda0345cc0355e1dd417527b1c60551a53096c2169caa897c16780cd
SSDEEP

1536:WAFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prYAFz2q3:WyS4jHS8q/3nTzePCwNUh4E9bJ2q3

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x0008000000016d29-19.dat	family_gh0strat
behavioral1/memory/2680-21-0x0000000000400000-0x000000000044E2D4-memory.dmp	family_gh0strat
behavioral1/memory/2720-24-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/2720-26-0x0000000020000000-0x0000000020027000-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
Gh0strat family
gh0strat

Deletes itself 1 IoCs

pid	Process
2680	hvnuiouccj

Executes dropped EXE 1 IoCs

pid	Process
2680	hvnuiouccj

Loads dropped DLL 3 IoCs

pid	Process
2772	JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe
2772	JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe
2720	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\uvhswmubrf	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	JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hvnuiouccj
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\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
2680	hvnuiouccj
2720	svchost.exe
2720	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2680	hvnuiouccj
Token: SeBackupPrivilege	2680	hvnuiouccj
Token: SeBackupPrivilege	2680	hvnuiouccj
Token: SeRestorePrivilege	2680	hvnuiouccj
Token: SeBackupPrivilege	2720	svchost.exe
Token: SeRestorePrivilege	2720	svchost.exe
Token: SeBackupPrivilege	2720	svchost.exe
Token: SeBackupPrivilege	2720	svchost.exe
Token: SeSecurityPrivilege	2720	svchost.exe
Token: SeSecurityPrivilege	2720	svchost.exe
Token: SeBackupPrivilege	2720	svchost.exe
Token: SeBackupPrivilege	2720	svchost.exe
Token: SeSecurityPrivilege	2720	svchost.exe
Token: SeBackupPrivilege	2720	svchost.exe
Token: SeBackupPrivilege	2720	svchost.exe
Token: SeSecurityPrivilege	2720	svchost.exe
Token: SeBackupPrivilege	2720	svchost.exe
Token: SeRestorePrivilege	2720	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2680	2772	JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe	31
PID 2772 wrote to memory of 2680	2772	JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe	31
PID 2772 wrote to memory of 2680	2772	JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe	31
PID 2772 wrote to memory of 2680	2772	JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- \??\c:\users\admin\appdata\local\hvnuiouccj
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_51acce6c0ffe9c5eaac2f99a5547e538.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2680

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:2720

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%\fbchv.cc3

Filesize
22.0MB

MD5
fb99c59cfac282464d06afc608d57540

SHA1
aba8de7b8712fb1264164a8bae8a00f88db1a3fe

SHA256
c9a4c7d425b13d7ea91c62c086dc69990959613b6160f13c063c4aa0e9c7f579

SHA512
ab0afc38f7cdfdf64d9762ad2e5cf7fa8427c1ae498d3ce433255fd1c3cdd5d70b2e9b156a86e4072bf7a66f4747bed236e0f503f1ab15da71ec06e1b006c885

Download Submit
\Users\Admin\AppData\Local\hvnuiouccj

Filesize
22.3MB

MD5
af6d24e78bcd145ddea247f850c6050a

SHA1
4607a33e6dade94495e86dd7cb449c0e7e58343a

SHA256
87724c8738290fc5c13bbefa460c60ea1953c39f17c2235acc441482c0e6ee5b

SHA512
c972045df944f4e58c4c88229e8e412381bf241f1ce895d41183dac2c771dd5c13d8f6ea4ebd544d70b4e2726200442ad7f506eca68c8c865440edf0501fdb10

Download Submit
memory/2680-14-0x0000000000400000-0x000000000044E2D4-memory.dmp

Filesize
312KB

Download
memory/2680-21-0x0000000000400000-0x000000000044E2D4-memory.dmp

Filesize
312KB

Download
memory/2720-22-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2720-24-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2720-26-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2772-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2772-1-0x0000000000400000-0x000000000044E2D4-memory.dmp

Filesize
312KB

Download
memory/2772-12-0x0000000000400000-0x000000000044E2D4-memory.dmp

Filesize
312KB

Download
memory/2772-16-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads