gh0strat | e4bde71cb4e1a8b90dbbd517f26cf474850e0f41a4db4ffb5092e26aba61d5bd

General

Target

b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.exe
Size

94KB
MD5

b8d3f629d5e05eeb3fd5cbb89cf8e1e3
SHA1

5496d542547bede52d9013b304a5a96a0c167bbf
SHA256

e4bde71cb4e1a8b90dbbd517f26cf474850e0f41a4db4ffb5092e26aba61d5bd
SHA512

09dd159101bde86b65325e3f38da2e388181bf1ea3731edf23eca5ea0455eaf99eb2186366ae1dfd6aea2bc087db9769205af675913922d9738ee6d9b338ac88
SSDEEP

1536:piFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prMs8RmE:pIS4jHS8q/3nTzePCwNUh4E9YRmE

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x00090000000164b0-20.dat	family_gh0strat
behavioral1/memory/2244-21-0x0000000000400000-0x000000000044E1F0-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
2244	fpmsqmjdjy

Executes dropped EXE 1 IoCs

pid	Process
2244	fpmsqmjdjy

Loads dropped DLL 3 IoCs

pid	Process
2316	b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.exe
2316	b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.exe
2180	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 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\yygsdxcegl	svchost.exe
File created	C:\Windows\SysWOW64\yhtmlbfbtg	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	fpmsqmjdjy
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.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
2244	fpmsqmjdjy
2180	svchost.exe
2180	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2244	fpmsqmjdjy
Token: SeBackupPrivilege	2244	fpmsqmjdjy
Token: SeBackupPrivilege	2244	fpmsqmjdjy
Token: SeRestorePrivilege	2244	fpmsqmjdjy
Token: SeBackupPrivilege	2180	svchost.exe
Token: SeRestorePrivilege	2180	svchost.exe
Token: SeBackupPrivilege	2180	svchost.exe
Token: SeBackupPrivilege	2180	svchost.exe
Token: SeSecurityPrivilege	2180	svchost.exe
Token: SeSecurityPrivilege	2180	svchost.exe
Token: SeBackupPrivilege	2180	svchost.exe
Token: SeBackupPrivilege	2180	svchost.exe
Token: SeSecurityPrivilege	2180	svchost.exe
Token: SeBackupPrivilege	2180	svchost.exe
Token: SeBackupPrivilege	2180	svchost.exe
Token: SeSecurityPrivilege	2180	svchost.exe
Token: SeBackupPrivilege	2180	svchost.exe
Token: SeRestorePrivilege	2180	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2244	2316	b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.exe	30
PID 2316 wrote to memory of 2244	2316	b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.exe	30
PID 2316 wrote to memory of 2244	2316	b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.exe	30
PID 2316 wrote to memory of 2244	2316	b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316
- \??\c:\users\admin\appdata\local\fpmsqmjdjy
  "C:\Users\Admin\AppData\Local\Temp\b8d3f629d5e05eeb3fd5cbb89cf8e1e3_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\b8d3f629d5e05eeb3fd5cbb89cf8e1e3_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2244

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:2180

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

\ProgramData\Storm\update\%SESSIONNAME%\xssxc.cc3

Filesize
23.0MB

MD5
c208fd5fe21eb0cfedaefa1fca566eb8

SHA1
14183b045c03cd1db9bd3534c4d452d6a7084d20

SHA256
98add6773dcac22f1b871b45b40d5aca575cbbd5cb7b2c1958bf443eecb6bbcf

SHA512
a5e5f0e93e37261f598c331e9eb09dd2c9240062adc25c038fc78d2ab9a493d5484039809bc236d39e8b07b9060b98277e7dcd69797c4e116d6d0a5c6180996b

Download Submit
\Users\Admin\AppData\Local\fpmsqmjdjy

Filesize
24.4MB

MD5
00d61b9badf8d9fd3a127ac841e78396

SHA1
48f40dfe98fb39d6cc55610eb7188b7657dc0091

SHA256
8f582388fc381ecf1ee2f86981261f64798f5a79d85fdc8be71506cc95d0cbdd

SHA512
7a889ffcd939ab4fc24207fc584b9e246269da14c110d411949b1dcce90b642caae04dfa4cb8adf76807944b388ccccefb920fd61a4847c1abb06077728d75fa

Download Submit
memory/2180-22-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2244-16-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2244-15-0x0000000000400000-0x000000000044E1F0-memory.dmp

Filesize
312KB

Download
memory/2244-21-0x0000000000400000-0x000000000044E1F0-memory.dmp

Filesize
312KB

Download
memory/2316-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2316-1-0x0000000000400000-0x000000000044E1F0-memory.dmp

Filesize
312KB

Download
memory/2316-12-0x0000000000400000-0x000000000044E1F0-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads