gh0strat | 1f2dcf76b97463b97614c11b9c7e0fcbd539a35393cbf3d077a93296521f5c4e

General

Target

JaffaCakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe
Size

95KB
MD5

5ea494b9224b19b21d8a9e74e5b2d4d8
SHA1

26eb64607ee568ec356936739217691cac1c3584
SHA256

1f2dcf76b97463b97614c11b9c7e0fcbd539a35393cbf3d077a93296521f5c4e
SHA512

1ecf909965b6ddad1bc2f2959499276115b1efc4807dc60b77fbfbaa544ee94b915595af066eb19b1b4e2530f97cdb00812b6ef4fa1b056042682412ab236bd9
SSDEEP

1536:QRFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prkKnoF1o:QHS4jHS8q/3nTzePCwNUh4E9kKns1o

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x0008000000017570-18.dat	family_gh0strat
behavioral1/memory/1708-20-0x0000000000400000-0x000000000044E478-memory.dmp	family_gh0strat
behavioral1/memory/2896-24-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/2896-26-0x0000000020000000-0x0000000020027000-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
1708	htbmhttufv

Executes dropped EXE 1 IoCs

pid	Process
1708	htbmhttufv

Loads dropped DLL 3 IoCs

pid	Process
2520	JaffaCakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe
2520	JaffaCakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe
2896	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\wdidcrnmgy	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_5ea494b9224b19b21d8a9e74e5b2d4d8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	htbmhttufv
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\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
1708	htbmhttufv
2896	svchost.exe
2896	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	1708	htbmhttufv
Token: SeBackupPrivilege	1708	htbmhttufv
Token: SeBackupPrivilege	1708	htbmhttufv
Token: SeRestorePrivilege	1708	htbmhttufv
Token: SeBackupPrivilege	2896	svchost.exe
Token: SeRestorePrivilege	2896	svchost.exe
Token: SeBackupPrivilege	2896	svchost.exe
Token: SeBackupPrivilege	2896	svchost.exe
Token: SeSecurityPrivilege	2896	svchost.exe
Token: SeSecurityPrivilege	2896	svchost.exe
Token: SeBackupPrivilege	2896	svchost.exe
Token: SeBackupPrivilege	2896	svchost.exe
Token: SeSecurityPrivilege	2896	svchost.exe
Token: SeBackupPrivilege	2896	svchost.exe
Token: SeBackupPrivilege	2896	svchost.exe
Token: SeSecurityPrivilege	2896	svchost.exe
Token: SeBackupPrivilege	2896	svchost.exe
Token: SeRestorePrivilege	2896	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 1708	2520	JaffaCakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe	30
PID 2520 wrote to memory of 1708	2520	JaffaCakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe	30
PID 2520 wrote to memory of 1708	2520	JaffaCakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe	30
PID 2520 wrote to memory of 1708	2520	JaffaCakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- \??\c:\users\admin\appdata\local\htbmhttufv
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_5ea494b9224b19b21d8a9e74e5b2d4d8.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1708

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:2896

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%\qkqsg.cc3

Filesize
23.0MB

MD5
2961b7eb7834f9cb68a34f20198d9823

SHA1
2ca4c0921693df1ef03ff3c0de43b29ccf850a08

SHA256
e43170bc1769dc626e340c44fda3f312e98e8942cea34952c58b736a95596701

SHA512
2f52f1b80f72bc519bc7a69bef4a25777bcb69e3c3f9ad304eec741925b21bda3f37ebd31db8f634a86934d961bf6b510048a71fb9583dc9f2fd9f4f2a6dcad1

Download Submit
\Users\Admin\AppData\Local\htbmhttufv

Filesize
23.3MB

MD5
16ded1da9347a6f69a4c3fa1e16b44c8

SHA1
bc2d321168877b9d2e7390387f07bcb5fdf967d1

SHA256
ebfedb52b22577dce7cfd885d05c138f5dd68c9267c6c422b62a7b99404abe55

SHA512
dc0f967eb60eb06f70bf5cef83f52ec404c53a4ecf9a538dfe0321fcdf879e0452f4b8708b75663053698b111016e085453e9e70ee20fd8325abecbcf0196dc7

Download Submit
memory/1708-15-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1708-14-0x0000000000400000-0x000000000044E478-memory.dmp

Filesize
313KB

Download
memory/1708-20-0x0000000000400000-0x000000000044E478-memory.dmp

Filesize
313KB

Download
memory/2520-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2520-1-0x0000000000400000-0x000000000044E478-memory.dmp

Filesize
313KB

Download
memory/2520-11-0x0000000000400000-0x000000000044E478-memory.dmp

Filesize
313KB

Download
memory/2520-21-0x0000000000400000-0x000000000044E478-memory.dmp

Filesize
313KB

Download
memory/2896-22-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2896-24-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2896-26-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads