gh0strat | 0c71ddd274298e2a05b48acaa278704fdc842b3dcdc941891668161e8cdff50e

General

Target

JaffaCakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe
Size

95KB
MD5

55fe2a4b9a75eeed31c19f9ef7c19e55
SHA1

d448cf6db82246e23efe2718c40e4b9ae23d7b22
SHA256

0c71ddd274298e2a05b48acaa278704fdc842b3dcdc941891668161e8cdff50e
SHA512

5abbaa1fbaa3a00f1b6e589392acaff2a3e6738d0b9a396df6a558dc20ab8d25f6ac072970aa2fc2f0570c4c696cb89afe0ee2a28d103fb81881b85058e1dfa1
SSDEEP

1536:qKFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prTPLyrBdACLmDx7kEOR:qQS4jHS8q/3nTzePCwNUh4E9TPerBdAc

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015d6d-20.dat	family_gh0strat
behavioral1/memory/2344-21-0x0000000000400000-0x000000000044E348-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
2344	hptwmldicd

Executes dropped EXE 1 IoCs

pid	Process
2344	hptwmldicd

Loads dropped DLL 3 IoCs

pid	Process
2496	JaffaCakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe
2496	JaffaCakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe
1792	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\kkeircqloe	svchost.exe
File created	C:\Windows\SysWOW64\kaoffbktpq	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_55fe2a4b9a75eeed31c19f9ef7c19e55.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hptwmldicd
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
2344	hptwmldicd
1792	svchost.exe
1792	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2344	hptwmldicd
Token: SeBackupPrivilege	2344	hptwmldicd
Token: SeBackupPrivilege	2344	hptwmldicd
Token: SeRestorePrivilege	2344	hptwmldicd
Token: SeBackupPrivilege	1792	svchost.exe
Token: SeRestorePrivilege	1792	svchost.exe
Token: SeBackupPrivilege	1792	svchost.exe
Token: SeBackupPrivilege	1792	svchost.exe
Token: SeSecurityPrivilege	1792	svchost.exe
Token: SeSecurityPrivilege	1792	svchost.exe
Token: SeBackupPrivilege	1792	svchost.exe
Token: SeBackupPrivilege	1792	svchost.exe
Token: SeSecurityPrivilege	1792	svchost.exe
Token: SeBackupPrivilege	1792	svchost.exe
Token: SeBackupPrivilege	1792	svchost.exe
Token: SeSecurityPrivilege	1792	svchost.exe
Token: SeBackupPrivilege	1792	svchost.exe
Token: SeRestorePrivilege	1792	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2344	2496	JaffaCakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe	30
PID 2496 wrote to memory of 2344	2496	JaffaCakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe	30
PID 2496 wrote to memory of 2344	2496	JaffaCakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe	30
PID 2496 wrote to memory of 2344	2496	JaffaCakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2496
- \??\c:\users\admin\appdata\local\hptwmldicd
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_55fe2a4b9a75eeed31c19f9ef7c19e55.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2344

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:1792

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%\iuvjp.cc3

Filesize
24.1MB

MD5
336885b5ac43ef8f993d45673de8ed88

SHA1
011cbf5b95065dcd62ce6fbac6bf75a66237cdc4

SHA256
c8707749568e52b2319abd61607e594f85e2829e58962c16b0c94ddac7673651

SHA512
f3884ece5983a2573fa2f99288631c576f64027e1de381dfdd6ca8827f4044860a286f429de5ff9cbe29576c49c0e2313ef7618ed22702120a565049b059146e

Download Submit
\Users\Admin\AppData\Local\hptwmldicd

Filesize
24.8MB

MD5
6620fc8e4c96dca86a2831f04184d8b0

SHA1
f436997ff91bcb9b395ae76b41ae4912a8564dde

SHA256
828842051aa8515b9b9e940883fa673dc4172422e15f71d277170267419c5f33

SHA512
5fdca4ba22743738076bd977a89472a62131e45b65348836d5ff652e6ae8c65b56636b71ca8d212a906701b144dea1cf08e8f0db70abfa4b69ea5d6f5156289b

Download Submit
memory/1792-22-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2344-16-0x0000000000400000-0x000000000044E348-memory.dmp

Filesize
312KB

Download
memory/2344-21-0x0000000000400000-0x000000000044E348-memory.dmp

Filesize
312KB

Download
memory/2496-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2496-1-0x0000000000400000-0x000000000044E348-memory.dmp

Filesize
312KB

Download
memory/2496-7-0x0000000000230000-0x000000000027F000-memory.dmp

Filesize
316KB

Download
memory/2496-13-0x0000000000400000-0x000000000044E348-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads