gh0strat | ea34db58698de2e2c7a31f2f09047cabb060c8f7f5cd7465700227d72d95c184

General

Target

JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.exe
Size

206KB
MD5

4f4c0afe58f981a8868e4c687178406b
SHA1

f4ea76da62501da125f591a1d42445f9e72c6c53
SHA256

ea34db58698de2e2c7a31f2f09047cabb060c8f7f5cd7465700227d72d95c184
SHA512

b684aede120eec29ed895fb2a985a6b87b862e33779c9c1940aff7e6f74c5305fc5758f89868a9d7e09e47dde0ef1e29d437692441b17c4f5a1d8b7c49d3a540
SSDEEP

3072:AbTlz5mJnWa3HCNR7dH8yW1u5eO7P3qUkjTne8/5xzE:EAJnWa3iX5W85eJve8x5E

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000a000000016c75-14.dat	family_gh0strat
behavioral1/memory/2916-16-0x0000000000400000-0x0000000000435000-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
2916	hvnuiouccj

Executes dropped EXE 1 IoCs

pid	Process
2916	hvnuiouccj

Loads dropped DLL 3 IoCs

pid	Process
2772	JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.exe
2772	JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.exe
2160	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\ndbdvskhsi	svchost.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.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	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
2160	svchost.exe
2160	svchost.exe
2160	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2916	hvnuiouccj
Token: SeBackupPrivilege	2916	hvnuiouccj
Token: SeBackupPrivilege	2916	hvnuiouccj
Token: SeRestorePrivilege	2916	hvnuiouccj
Token: SeBackupPrivilege	2160	svchost.exe
Token: SeRestorePrivilege	2160	svchost.exe
Token: SeBackupPrivilege	2160	svchost.exe
Token: SeBackupPrivilege	2160	svchost.exe
Token: SeSecurityPrivilege	2160	svchost.exe
Token: SeSecurityPrivilege	2160	svchost.exe
Token: SeBackupPrivilege	2160	svchost.exe
Token: SeBackupPrivilege	2160	svchost.exe
Token: SeSecurityPrivilege	2160	svchost.exe
Token: SeBackupPrivilege	2160	svchost.exe
Token: SeBackupPrivilege	2160	svchost.exe
Token: SeSecurityPrivilege	2160	svchost.exe
Token: SeBackupPrivilege	2160	svchost.exe
Token: SeRestorePrivilege	2160	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2916	2772	JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.exe	31
PID 2772 wrote to memory of 2916	2772	JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.exe	31
PID 2772 wrote to memory of 2916	2772	JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.exe	31
PID 2772 wrote to memory of 2916	2772	JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- \??\c:\users\admin\appdata\local\hvnuiouccj
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f4c0afe58f981a8868e4c687178406b.exe"a -sc:\users\admin\appdata\local\temp\jaffacakes118_4f4c0afe58f981a8868e4c687178406b.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2916

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:2160

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:\users\admin\application data\acd systems\acdsee\imagehx.ddf

Filesize
1.2MB

MD5
b8d3aec636c10ab65906f6ff2197010a

SHA1
41867871eaa8663e5f9fe6f4e60cb644286dc15e

SHA256
524feddf80a6f7b0af7d790c9fbf73c683176f7a79ffa77ebc17afd9a7f2a77c

SHA512
b8c36a12ba7991e68e1afebaf0b56d1aca264bb294ab43bc388cef28913a6041ca2945d08e00a4d9b2b0c64563f06428a32046564db9d365c16fb753198c732c

Download Submit
\Users\Admin\AppData\Local\hvnuiouccj

Filesize
22.3MB

MD5
75109485048e2aa055559c89a230a3ca

SHA1
5ed2f72aae81e28010b75e55d156a3055e9d004d

SHA256
45d8910291d753a177e71c58a8bffcac6f9efd50257322cc08c7a86440bcd3f4

SHA512
e8dea574f3b83c3351d06c2605fa8b8140a1c873bb4f29fc5bf2c70481b3249149df596aee59880a980f1c21265c2b4d40e8597cfdbac9d4a62bd6a927f61b1d

Download Submit
memory/2772-0-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2772-9-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2916-11-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2916-16-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads