gh0strat | 3401ae8d0596c1bdb3a4d648b19f4f7ba09a5b2f1c257462fc5d39eeca8204f7

General

Target

JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe
Size

200KB
MD5

62df764b94ae043ad69629d432da1c48
SHA1

d0d481dac98531afafc8dac916fba8dd54d4ae1f
SHA256

3401ae8d0596c1bdb3a4d648b19f4f7ba09a5b2f1c257462fc5d39eeca8204f7
SHA512

39d031e4708f461998fb7bf188c88c0a3743d8332bf3d088bcb81220a2b5ae2b7893891fb180bff4015c0629abb1a2b809c45d68010bd5bb0761cdad23072eda
SSDEEP

6144:UsYy5nW8Q0BGyPWbyFYPbzcTBlhHrqndntyd:BrW8HebEYPbzcT3n

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/2292-0-0x0000000000400000-0x0000000000432800-memory.dmp	family_gh0strat
behavioral1/memory/2292-1-0x00000000001C0000-0x00000000001F3000-memory.dmp	family_gh0strat
behavioral1/files/0x000d000000012257-5.dat	family_gh0strat
behavioral1/memory/2608-9-0x0000000000400000-0x0000000000432800-memory.dmp	family_gh0strat
behavioral1/memory/2292-10-0x0000000000400000-0x0000000000432800-memory.dmp	family_gh0strat
behavioral1/files/0x0008000000019490-14.dat	family_gh0strat
behavioral1/memory/2608-16-0x0000000000400000-0x0000000000432800-memory.dmp	family_gh0strat
behavioral1/memory/1356-18-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/1356-20-0x0000000020000000-0x0000000020027000-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
2608	cwpiymrugv

Executes dropped EXE 1 IoCs

pid	Process
2608	cwpiymrugv

Loads dropped DLL 2 IoCs

pid	Process
2292	JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe
1356	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\vdatjrmlof	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_62df764b94ae043ad69629d432da1c48.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cwpiymrugv
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
2608	cwpiymrugv
1356	svchost.exe
1356	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2608	cwpiymrugv
Token: SeBackupPrivilege	2608	cwpiymrugv
Token: SeBackupPrivilege	2608	cwpiymrugv
Token: SeRestorePrivilege	2608	cwpiymrugv
Token: SeBackupPrivilege	1356	svchost.exe
Token: SeRestorePrivilege	1356	svchost.exe
Token: SeBackupPrivilege	1356	svchost.exe
Token: SeBackupPrivilege	1356	svchost.exe
Token: SeSecurityPrivilege	1356	svchost.exe
Token: SeSecurityPrivilege	1356	svchost.exe
Token: SeBackupPrivilege	1356	svchost.exe
Token: SeBackupPrivilege	1356	svchost.exe
Token: SeSecurityPrivilege	1356	svchost.exe
Token: SeBackupPrivilege	1356	svchost.exe
Token: SeBackupPrivilege	1356	svchost.exe
Token: SeSecurityPrivilege	1356	svchost.exe
Token: SeBackupPrivilege	1356	svchost.exe
Token: SeRestorePrivilege	1356	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2608	2292	JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe	31
PID 2292 wrote to memory of 2608	2292	JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe	31
PID 2292 wrote to memory of 2608	2292	JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe	31
PID 2292 wrote to memory of 2608	2292	JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe	31
PID 2292 wrote to memory of 2608	2292	JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe	31
PID 2292 wrote to memory of 2608	2292	JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe	31
PID 2292 wrote to memory of 2608	2292	JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2292
- \??\c:\users\admin\appdata\local\cwpiymrugv
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_62df764b94ae043ad69629d432da1c48.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_62df764b94ae043ad69629d432da1c48.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2608

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:1356

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\drm\%sessionname%\bqevt.mp3

Filesize
21.1MB

MD5
79926a475dcdc79f83dca922726afe15

SHA1
6c3ab8126766bcee7d357fd06427eec24b03e7fb

SHA256
4523629a71cb0469205197462667c2fbcb722ce27154b43388571f6f8fc43518

SHA512
e9d6b897e67de2ae7a8109c2dfd52bde37d8d72acf35835be16803f2718de7da503765ab41411a4ba7d4e079296b12a735951f9c595edee8ba6b111c6f7e3e91

Download Submit
\Users\Admin\AppData\Local\cwpiymrugv

Filesize
22.7MB

MD5
69bb81ad88f5bf5ff15ca1613dc2c66e

SHA1
54b5175a2b0891ed942572963466b0fdacda3a3a

SHA256
40c1f370b2893e7a65db261b6dc158642d487fddbd0bc204eb967bd0d86437ed

SHA512
a33c0e04c1c84224a34849b4a7595df68777b40fe46c1939002f6f51ae24b5dafa1ddf98a7dcae670ab1e5a333c93d176a2020b05195cc0c58368ee22ff5a4d6

Download Submit
memory/1356-17-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/1356-18-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/1356-20-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2292-0-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/2292-1-0x00000000001C0000-0x00000000001F3000-memory.dmp

Filesize
204KB

Download
memory/2292-2-0x00000000001C0000-0x00000000001F3000-memory.dmp

Filesize
204KB

Download
memory/2292-10-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/2608-9-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/2608-16-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads