gh0strat | 165fa9f7e043f744549831cd58108c820af3a362acbae42f0818b3158a80aed9

General

Target

0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe
Size

96KB
MD5

0f19d97e2959bf5a4b8d649b3e632400
SHA1

b279203b32e209aee15633fd8bc5e9b1db3ee182
SHA256

165fa9f7e043f744549831cd58108c820af3a362acbae42f0818b3158a80aed9
SHA512

7b17cc7f3c52c19b16769626b5694754593423832a52fb644ebeeded58ba4630c1e5a2f91181ca6a687d7267d5f5e836a3679be0a00a7a89baa01900459a6351
SSDEEP

1536:iIFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prCsEotChLDW:iaS4jHS8q/3nTzePCwNUh4E9CsEoOLa

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral1/files/0x00080000000173f3-19.dat	family_gh0strat
behavioral1/memory/2724-22-0x0000000000400000-0x000000000044E318-memory.dmp	family_gh0strat
behavioral1/memory/2784-25-0x0000000020000000-0x0000000020027000-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
2724	ewdmnchllb

Executes dropped EXE 1 IoCs

pid	Process
2724	ewdmnchllb

Loads dropped DLL 3 IoCs

pid	Process
2112	0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe
2112	0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe
2784	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\tfjmbuonlo	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	0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ewdmnchllb
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	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
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	svchost.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2724	ewdmnchllb
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2724	ewdmnchllb
Token: SeBackupPrivilege	2724	ewdmnchllb
Token: SeBackupPrivilege	2724	ewdmnchllb
Token: SeRestorePrivilege	2724	ewdmnchllb
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeSecurityPrivilege	2784	svchost.exe
Token: SeSecurityPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeSecurityPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeSecurityPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2724	2112	0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe	30
PID 2112 wrote to memory of 2724	2112	0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe	30
PID 2112 wrote to memory of 2724	2112	0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe	30
PID 2112 wrote to memory of 2724	2112	0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2112
- \??\c:\users\admin\appdata\local\ewdmnchllb
  "C:\Users\Admin\AppData\Local\Temp\0f19d97e2959bf5a4b8d649b3e632400_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\0f19d97e2959bf5a4b8d649b3e632400_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2724

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:2784

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%\sulxv.cc3

Filesize
24.1MB

MD5
087f9b21925a867a6d4b482c5af6b240

SHA1
3e1c8e770039be51626984010bf174ffa7361afb

SHA256
3f51b435d5dcb1269446b6d4043cf7d8da789ca6b2e0c72c60e88af28f8fc84d

SHA512
204db3720078b392752aed39eec4bfbd361cee7538f93125de67eab41ef8b1e3ba11204bd7c671535eb1b1fc67b3dfe31ec5abbf1c7ea9ccf4910d1f2aabfbb8

Download Submit
\Users\Admin\AppData\Local\ewdmnchllb

Filesize
19.6MB

MD5
ac943070920c1f9151eafca8a35250c9

SHA1
5de8ed414286abc73a79164a327714fdfc39474e

SHA256
db448799f4cb3adf58349299ad308cb09a1ef484816122d9cce26b677dcb8360

SHA512
f07bd72f20ed9302c6b86077f6489694425f7ef9b18b686222491ec36c7d59958337485282b633ca6f4b74338737597f01477947e925db5b989a3afd8e6a742e

Download Submit
memory/2112-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2112-1-0x0000000000400000-0x000000000044E318-memory.dmp

Filesize
312KB

Download
memory/2112-12-0x0000000000400000-0x000000000044E318-memory.dmp

Filesize
312KB

Download
memory/2724-16-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2724-15-0x0000000000400000-0x000000000044E318-memory.dmp

Filesize
312KB

Download
memory/2724-22-0x0000000000400000-0x000000000044E318-memory.dmp

Filesize
312KB

Download
memory/2784-23-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2784-25-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads