gh0strat | 41b37b95dae9f283f6e9cb9cecd3f02389445666a81c658f0b9ed8588e32ba29

General

Target

JaffaCakes118_451d6cde30a0963f38d16117aba86394.exe
Size

98KB
MD5

451d6cde30a0963f38d16117aba86394
SHA1

a744be3accd0ecc894e6a742ee0b7198e6648250
SHA256

41b37b95dae9f283f6e9cb9cecd3f02389445666a81c658f0b9ed8588e32ba29
SHA512

795bff70c205c0b9ad1e52b589f17de529dcf6cbe300bd0e81364f0dfcfd5800e055ad7fe8cf61cf9a4d494592eaef16879252c6250eecc878a1035cb4df3387
SSDEEP

1536:QYFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prZP9mTVtZuga:QKS4jHS8q/3nTzePCwNUh4E9OZK

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000700000001921d-20.dat	family_gh0strat
behavioral1/memory/1944-23-0x0000000000400000-0x000000000044E384-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
1944	iquhcwlryo

Executes dropped EXE 1 IoCs

pid	Process
1944	iquhcwlryo

Loads dropped DLL 3 IoCs

pid	Process
2984	JaffaCakes118_451d6cde30a0963f38d16117aba86394.exe
2984	JaffaCakes118_451d6cde30a0963f38d16117aba86394.exe
2052	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\hskbfhlhjt	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_451d6cde30a0963f38d16117aba86394.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iquhcwlryo
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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	svchost.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
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
Key created	\REGISTRY\USER\.DEFAULT\Software	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1944	iquhcwlryo
2052	svchost.exe
2052	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	1944	iquhcwlryo
Token: SeBackupPrivilege	1944	iquhcwlryo
Token: SeBackupPrivilege	1944	iquhcwlryo
Token: SeRestorePrivilege	1944	iquhcwlryo
Token: SeBackupPrivilege	2052	svchost.exe
Token: SeRestorePrivilege	2052	svchost.exe
Token: SeBackupPrivilege	2052	svchost.exe
Token: SeBackupPrivilege	2052	svchost.exe
Token: SeSecurityPrivilege	2052	svchost.exe
Token: SeSecurityPrivilege	2052	svchost.exe
Token: SeBackupPrivilege	2052	svchost.exe
Token: SeBackupPrivilege	2052	svchost.exe
Token: SeSecurityPrivilege	2052	svchost.exe
Token: SeBackupPrivilege	2052	svchost.exe
Token: SeBackupPrivilege	2052	svchost.exe
Token: SeSecurityPrivilege	2052	svchost.exe
Token: SeBackupPrivilege	2052	svchost.exe
Token: SeRestorePrivilege	2052	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 1944	2984	JaffaCakes118_451d6cde30a0963f38d16117aba86394.exe	30
PID 2984 wrote to memory of 1944	2984	JaffaCakes118_451d6cde30a0963f38d16117aba86394.exe	30
PID 2984 wrote to memory of 1944	2984	JaffaCakes118_451d6cde30a0963f38d16117aba86394.exe	30
PID 2984 wrote to memory of 1944	2984	JaffaCakes118_451d6cde30a0963f38d16117aba86394.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_451d6cde30a0963f38d16117aba86394.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_451d6cde30a0963f38d16117aba86394.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2984
- \??\c:\users\admin\appdata\local\iquhcwlryo
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_451d6cde30a0963f38d16117aba86394.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_451d6cde30a0963f38d16117aba86394.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1944

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:2052

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%\lfgul.cc3

Filesize
21.0MB

MD5
4a1765a6bbffda77c88811888d27e561

SHA1
ad3bfeb9c6de4385f0655e671aa1d66cd93a111b

SHA256
6dfad0e47bdd3dbc768749e835b4217a1e370fd7fad82f749b6f08d1ebefcc92

SHA512
7bdc743816be980055c82b7ccf57b44508068386224f851cf6cca37d8c9804335f373d96a553ba792bcd61fcfc47d493a1adc75b6d0072b13de27ae04c0787b1

Download Submit
\Users\Admin\AppData\Local\iquhcwlryo

Filesize
24.8MB

MD5
d51b9a74fe6bc7aa3cd5fe3f07463317

SHA1
9b99096f19fbfe394b429c6166cbea7a049f97f7

SHA256
8120edd53a298f49b54dbc8b7993c1c9a277d38a295e1c1010db872e6ef80d45

SHA512
78778f5d3cb8d79a77560d04b8bc3ff48a07009f0bd2bce80947b8c79a6d50cafd1334ba1360b731e1842967e24648c8c48d14946bc845e13de6c4aef5816cbf

Download Submit
memory/1944-16-0x0000000000400000-0x000000000044E384-memory.dmp

Filesize
312KB

Download
memory/1944-23-0x0000000000400000-0x000000000044E384-memory.dmp

Filesize
312KB

Download
memory/2052-24-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2984-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2984-1-0x0000000000400000-0x000000000044E384-memory.dmp

Filesize
312KB

Download
memory/2984-14-0x00000000002B0000-0x00000000002FF000-memory.dmp

Filesize
316KB

Download
memory/2984-7-0x00000000002B0000-0x00000000002FF000-memory.dmp

Filesize
316KB

Download
memory/2984-13-0x0000000000400000-0x000000000044E384-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads