gh0strat | a38a2a72aa15db5f17d99667153830c35b35fbf9b784af97872f9f6c2148f8aa

General

Target

JaffaCakes118_4c593c700580ea3d1a21b559a62c7c42.exe
Size

95KB
MD5

4c593c700580ea3d1a21b559a62c7c42
SHA1

4c24e8a90611db00deb7b8d59ff41ecaaf377730
SHA256

a38a2a72aa15db5f17d99667153830c35b35fbf9b784af97872f9f6c2148f8aa
SHA512

07965f26bf693d85b46ea92d20ef722525bcc1d008f6e26cffaf386ae8b499b2bcec3af590b8473d12e7df09f5f59a2232e2c921526fef94cb78fb9d524b4e04
SSDEEP

1536:zMFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8pr/ztQrOGS:zeS4jHS8q/3nTzePCwNUh4E9/z2r/S

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x0008000000015cda-20.dat	family_gh0strat
behavioral1/memory/2644-22-0x0000000000400000-0x000000000044E344-memory.dmp	family_gh0strat
behavioral1/memory/2808-25-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/2808-27-0x0000000020000000-0x0000000020027000-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
2644	gqidoiwdtk

Executes dropped EXE 1 IoCs

pid	Process
2644	gqidoiwdtk

Loads dropped DLL 3 IoCs

pid	Process
1892	JaffaCakes118_4c593c700580ea3d1a21b559a62c7c42.exe
1892	JaffaCakes118_4c593c700580ea3d1a21b559a62c7c42.exe
2808	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\onfadevcad	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_4c593c700580ea3d1a21b559a62c7c42.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gqidoiwdtk
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 3 IoCs

pid	Process
2644	gqidoiwdtk
2808	svchost.exe
2808	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2644	gqidoiwdtk
Token: SeBackupPrivilege	2644	gqidoiwdtk
Token: SeBackupPrivilege	2644	gqidoiwdtk
Token: SeRestorePrivilege	2644	gqidoiwdtk
Token: SeBackupPrivilege	2808	svchost.exe
Token: SeRestorePrivilege	2808	svchost.exe
Token: SeBackupPrivilege	2808	svchost.exe
Token: SeBackupPrivilege	2808	svchost.exe
Token: SeSecurityPrivilege	2808	svchost.exe
Token: SeSecurityPrivilege	2808	svchost.exe
Token: SeBackupPrivilege	2808	svchost.exe
Token: SeBackupPrivilege	2808	svchost.exe
Token: SeSecurityPrivilege	2808	svchost.exe
Token: SeBackupPrivilege	2808	svchost.exe
Token: SeBackupPrivilege	2808	svchost.exe
Token: SeSecurityPrivilege	2808	svchost.exe
Token: SeBackupPrivilege	2808	svchost.exe
Token: SeRestorePrivilege	2808	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 2644	1892	JaffaCakes118_4c593c700580ea3d1a21b559a62c7c42.exe	30
PID 1892 wrote to memory of 2644	1892	JaffaCakes118_4c593c700580ea3d1a21b559a62c7c42.exe	30
PID 1892 wrote to memory of 2644	1892	JaffaCakes118_4c593c700580ea3d1a21b559a62c7c42.exe	30
PID 1892 wrote to memory of 2644	1892	JaffaCakes118_4c593c700580ea3d1a21b559a62c7c42.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4c593c700580ea3d1a21b559a62c7c42.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4c593c700580ea3d1a21b559a62c7c42.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1892
- \??\c:\users\admin\appdata\local\gqidoiwdtk
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4c593c700580ea3d1a21b559a62c7c42.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_4c593c700580ea3d1a21b559a62c7c42.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2644

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:2808

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%\ebnfc.cc3

Filesize
24.0MB

MD5
5b1c16db36a32ae877f00e64ea190f6a

SHA1
067765c3b20cf2eeb8a751542f14d49f77d3a0a5

SHA256
52f6be58f0db3f6491394bef52a76c7e3295b9314d6a34d3e255283e99cea0ca

SHA512
4c1f0a4224fa6a6ce281b88a479aadedf3d36eb687c784152f88f64dbab6e5fce559a22456ba8aaa57144caf7ee454f4306b379fc9883d2ef1e35e6aae88481b

Download Submit
\Users\Admin\AppData\Local\gqidoiwdtk

Filesize
21.9MB

MD5
82034e87562ea3a85b45affbb7bc823a

SHA1
fdce2a792cf92444f65b5b55df3d10fd8f48a393

SHA256
936212e5fca560fd00ff56751ae71da80e968bf969f3886a9ec65b8ba0c1e8d6

SHA512
7170c3516a618161319b595af5c39fafa5ba90321c56ddd455a209cb0fd7f2b580951acc8b9e479e38e7bd53474acb3711c2dafb5f732ec45db1a885035a87cb

Download Submit
memory/1892-0-0x0000000000400000-0x000000000044E344-memory.dmp

Filesize
312KB

Download
memory/1892-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1892-6-0x00000000002A0000-0x00000000002EF000-memory.dmp

Filesize
316KB

Download
memory/1892-15-0x0000000000400000-0x000000000044E344-memory.dmp

Filesize
312KB

Download
memory/2644-17-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2644-16-0x0000000000400000-0x000000000044E344-memory.dmp

Filesize
312KB

Download
memory/2644-22-0x0000000000400000-0x000000000044E344-memory.dmp

Filesize
312KB

Download
memory/2808-23-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2808-25-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2808-27-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads