gh0strat | 1003dda5565e2bd0b83354a1bca151d2371e1de434449d89f946575bbc69716b

General

Target

JaffaCakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe
Size

96KB
MD5

8aca47bd42a7f2b83a5c6c7163b77c44
SHA1

6bf3e949bda7e24671888b685b0060a73e0123df
SHA256

1003dda5565e2bd0b83354a1bca151d2371e1de434449d89f946575bbc69716b
SHA512

a121ff07633d2a8f94a8bba9f6507c4e3509da8ecd87044998e528d22a1b9a34fc93e227cdd45ffea4fbb38f380e32d288516b2a2f645e749d999d6d6453e9db
SSDEEP

1536:h6FusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8pri+yyjY17G:hgS4jHS8q/3nTzePCwNUh4E9L67G

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral1/files/0x00090000000173b2-21.dat	family_gh0strat
behavioral1/memory/2492-24-0x0000000000400000-0x000000000044E2B8-memory.dmp	family_gh0strat
behavioral1/memory/848-27-0x0000000020000000-0x0000000020027000-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
2492	fxtqtirmeg

Executes dropped EXE 1 IoCs

pid	Process
2492	fxtqtirmeg

Loads dropped DLL 3 IoCs

pid	Process
1224	JaffaCakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe
1224	JaffaCakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe
848	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\miiijusera	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_8aca47bd42a7f2b83a5c6c7163b77c44.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fxtqtirmeg
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
2492	fxtqtirmeg
848	svchost.exe
848	svchost.exe
848	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2492	fxtqtirmeg
Token: SeBackupPrivilege	2492	fxtqtirmeg
Token: SeBackupPrivilege	2492	fxtqtirmeg
Token: SeRestorePrivilege	2492	fxtqtirmeg
Token: SeBackupPrivilege	848	svchost.exe
Token: SeRestorePrivilege	848	svchost.exe
Token: SeBackupPrivilege	848	svchost.exe
Token: SeBackupPrivilege	848	svchost.exe
Token: SeSecurityPrivilege	848	svchost.exe
Token: SeSecurityPrivilege	848	svchost.exe
Token: SeBackupPrivilege	848	svchost.exe
Token: SeBackupPrivilege	848	svchost.exe
Token: SeSecurityPrivilege	848	svchost.exe
Token: SeBackupPrivilege	848	svchost.exe
Token: SeBackupPrivilege	848	svchost.exe
Token: SeSecurityPrivilege	848	svchost.exe
Token: SeBackupPrivilege	848	svchost.exe
Token: SeRestorePrivilege	848	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1224 wrote to memory of 2492	1224	JaffaCakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe	31
PID 1224 wrote to memory of 2492	1224	JaffaCakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe	31
PID 1224 wrote to memory of 2492	1224	JaffaCakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe	31
PID 1224 wrote to memory of 2492	1224	JaffaCakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1224
- \??\c:\users\admin\appdata\local\fxtqtirmeg
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_8aca47bd42a7f2b83a5c6c7163b77c44.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2492

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:848

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%\mqjcd.cc3

Filesize
20.1MB

MD5
e950899defd8472b3de2d835cd4bac16

SHA1
b219def47a87bd4906c48ab4a09ae51f49b72bdb

SHA256
dc3f70b7119e9f9ff870577eca9dce0fac647d60bd7deb43b601a9b73c7f8c39

SHA512
7f8132a69f75e091e50767c989d7503ac9e3c0cefa0298d8d1b8bcfbd431c92138871bce048c12e96f38842fd94f669f260f3fd527fb684619853f026664c202

Download Submit
\Users\Admin\AppData\Local\fxtqtirmeg

Filesize
24.9MB

MD5
5ec3af5156072f65c3e1e53d8ddc6546

SHA1
ab083b724ec0695227ee7d861d3a9e8a966f522c

SHA256
582c63334c1123ab3cfc3aec4e3fbc67b3dbb365d86a0c8e05e1ed3731f3eec4

SHA512
40b641d3125e4f3b0570bc06a13bdb7b53d48205a4f0a87893893540da0486d3e99cf8ac4324adfa32be38754ab9e0fd8d71c6939441cd89c6b5da3c498b1fc2

Download Submit
memory/848-25-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/848-27-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/1224-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1224-1-0x0000000000400000-0x000000000044E2B8-memory.dmp

Filesize
312KB

Download
memory/1224-7-0x0000000000280000-0x00000000002CF000-memory.dmp

Filesize
316KB

Download
memory/1224-14-0x0000000000400000-0x000000000044E2B8-memory.dmp

Filesize
312KB

Download
memory/1224-13-0x0000000000280000-0x00000000002CF000-memory.dmp

Filesize
316KB

Download
memory/2492-18-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2492-17-0x0000000000400000-0x000000000044E2B8-memory.dmp

Filesize
312KB

Download
memory/2492-24-0x0000000000400000-0x000000000044E2B8-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads