gh0strat | 04252d1a9775e15271358064348c1ba90ef71605c2315b12ad9a79153fc3b46f

General

Target

fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe
Size

96KB
MD5

fe1894686a0d4941e50d4b897aec57fc
SHA1

1c89aa39b35721bbee21ff3c968a4bd7c49cbef6
SHA256

04252d1a9775e15271358064348c1ba90ef71605c2315b12ad9a79153fc3b46f
SHA512

f93128ed7d3ee9bf6fd88581975a7b339aa51774b00ca9a8eca4f481a35d88af66854d1bb537062b842eafe9e58f07fb56c78789b918cd8f16031239637d6659
SSDEEP

1536:HkFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prQhf3M/:HWS4jHS8q/3nTzePCwNUh4E9g3M/

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x00090000000162e3-18.dat	family_gh0strat
behavioral1/memory/2412-20-0x0000000000400000-0x000000000044E31C-memory.dmp	family_gh0strat
behavioral1/memory/2188-22-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/2188-24-0x0000000020000000-0x0000000020027000-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

Deletes itself 1 IoCs

pid	Process
2412	itsqnbfvwc

Executes dropped EXE 1 IoCs

pid	Process
2412	itsqnbfvwc

Loads dropped DLL 2 IoCs

pid	Process
2964	fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe
2188	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\cjkqhkkvrn	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	fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	itsqnbfvwc
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
2412	itsqnbfvwc
2188	svchost.exe
2188	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2412	itsqnbfvwc
Token: SeBackupPrivilege	2412	itsqnbfvwc
Token: SeBackupPrivilege	2412	itsqnbfvwc
Token: SeRestorePrivilege	2412	itsqnbfvwc
Token: SeBackupPrivilege	2188	svchost.exe
Token: SeRestorePrivilege	2188	svchost.exe
Token: SeBackupPrivilege	2188	svchost.exe
Token: SeBackupPrivilege	2188	svchost.exe
Token: SeSecurityPrivilege	2188	svchost.exe
Token: SeSecurityPrivilege	2188	svchost.exe
Token: SeBackupPrivilege	2188	svchost.exe
Token: SeBackupPrivilege	2188	svchost.exe
Token: SeSecurityPrivilege	2188	svchost.exe
Token: SeBackupPrivilege	2188	svchost.exe
Token: SeBackupPrivilege	2188	svchost.exe
Token: SeSecurityPrivilege	2188	svchost.exe
Token: SeBackupPrivilege	2188	svchost.exe
Token: SeRestorePrivilege	2188	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 2412	2964	fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2412	2964	fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2412	2964	fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2412	2964	fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2412	2964	fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2412	2964	fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2412	2964	fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2964
- \??\c:\users\admin\appdata\local\itsqnbfvwc
  "C:\Users\Admin\AppData\Local\Temp\fe1894686a0d4941e50d4b897aec57fc_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\fe1894686a0d4941e50d4b897aec57fc_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2412

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:2188

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%\wteni.cc3

Filesize
23.0MB

MD5
d9a7cfc6dd8d8c2c3b619aff889fd990

SHA1
5c2a44fce6d425888fdfe8ead5fc1c42d1d621e2

SHA256
47b436631126d088ab2d5d40441f575206ddb979225c4f5c05615b29a85eb0c5

SHA512
720e15651bdf8cc26728943874575c605de5186af6795053047a7cb8bc13d7473cebcb803aeb430aaeba66cde87029c5d518685a95d696a6d1fcd323dbcfd78f

Download Submit
\Users\Admin\AppData\Local\itsqnbfvwc

Filesize
22.7MB

MD5
4166627dfa98116547dfdef52def2719

SHA1
e9b7b353bf220e9c00af315805758d5608f60231

SHA256
40dc3456d1256de1fc64df1e73e9fe63c2f7f039c362c277b92dcd1b6a971c4c

SHA512
e8e2582d75aca7242e75a6b0dcd2e916a3d9ca8dcce1706e5014956c89e5bf4639605f19fb152f2491fd0ebdda108104100fbc2552489e7da3136b8cbd4f047e

Download Submit
memory/2188-21-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2188-22-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2188-24-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2412-13-0x0000000000400000-0x000000000044E31C-memory.dmp

Filesize
312KB

Download
memory/2412-20-0x0000000000400000-0x000000000044E31C-memory.dmp

Filesize
312KB

Download
memory/2964-0-0x0000000000400000-0x000000000044E31C-memory.dmp

Filesize
312KB

Download
memory/2964-2-0x00000000002E0000-0x000000000032F000-memory.dmp

Filesize
316KB

Download
memory/2964-3-0x00000000002E0000-0x000000000032F000-memory.dmp

Filesize
316KB

Download
memory/2964-12-0x0000000000400000-0x000000000044E31C-memory.dmp

Filesize
312KB

Download
memory/2964-9-0x0000000000450000-0x000000000049F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads