gh0strat | 8d166f01183dac0d4c5a28efaa25588017e7b85e8385d6df95837a215fa7a7ac

General

Target

JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe
Size

192KB
MD5

564cc49e95149983e9ee2cb372d724fd
SHA1

dc25b78b40ea3148bde039f14553a57933f852b4
SHA256

8d166f01183dac0d4c5a28efaa25588017e7b85e8385d6df95837a215fa7a7ac
SHA512

2336e4a844423115d72b36558182293cebd9eaf881e2f1c4d77ba762b6f617f9fe3bed92bb027c5bb6d941d26b4646a5bfe95e5fbba5f5c1a3f3abe94b12ae0a
SSDEEP

3072:xEHwVBnWdcR7hygM7jNHwqAc0Hb0ZGlGPV6BLKw7i77Dgy:IwVBnWdcR7hyhHuq+b0Z907QDg

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/1364-8-0x0000000000400000-0x0000000000431000-memory.dmp	family_gh0strat
behavioral1/files/0x000a0000000162e4-12.dat	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
2400	fkbedm

Executes dropped EXE 1 IoCs

pid	Process
2400	fkbedm

Loads dropped DLL 3 IoCs

pid	Process
1364	JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe
1364	JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe
1920	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\ahswucbniq	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\Google\gnnsx.biz	fkbedm

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	JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe
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 4 IoCs

pid	Process
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1364	JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2400	fkbedm
Token: SeBackupPrivilege	2400	fkbedm
Token: SeBackupPrivilege	2400	fkbedm
Token: SeRestorePrivilege	2400	fkbedm
Token: SeBackupPrivilege	1920	svchost.exe
Token: SeRestorePrivilege	1920	svchost.exe
Token: SeBackupPrivilege	1920	svchost.exe
Token: SeBackupPrivilege	1920	svchost.exe
Token: SeSecurityPrivilege	1920	svchost.exe
Token: SeSecurityPrivilege	1920	svchost.exe
Token: SeBackupPrivilege	1920	svchost.exe
Token: SeBackupPrivilege	1920	svchost.exe
Token: SeSecurityPrivilege	1920	svchost.exe
Token: SeBackupPrivilege	1920	svchost.exe
Token: SeBackupPrivilege	1920	svchost.exe
Token: SeSecurityPrivilege	1920	svchost.exe
Token: SeBackupPrivilege	1920	svchost.exe
Token: SeRestorePrivilege	1920	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 2400	1364	JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe	28
PID 1364 wrote to memory of 2400	1364	JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe	28
PID 1364 wrote to memory of 2400	1364	JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe	28
PID 1364 wrote to memory of 2400	1364	JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe	28

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1364
- \??\c:\users\admin\appdata\local\fkbedm
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_564cc49e95149983e9ee2cb372d724fd.exe"a -s
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2400

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:1920

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:\progra~2\google\gnnsx.biz

Filesize
1.0MB

MD5
8f4e024aa97ccdfe5e099a87a04b9b45

SHA1
85376ec919589a3bf2b0b0c5586fcda5fc399c87

SHA256
b5b7621f1c5893577ebf9c1e0d19402cc292152f9ed38aab4907f43e30fda2ed

SHA512
bbf26884d7ff5652ecab52b5f9dd11e80e659401a057c492b180125658412a3cf8f18583fa6712d5679bfa7888520bf0c6fd250ba1496377ae5e4ab423236ccb

Download Submit
\Users\Admin\AppData\Local\fkbedm

Filesize
192KB

MD5
a7e84e9a49cc6b320cf2eba763ca0c0b

SHA1
b68153be0066e99a3b29aa10968de9b1a1b7505e

SHA256
16b03fb547307c432389d0e65e33c75252594ad3e040e817388651cf8e9652fa

SHA512
76da4c87b12977f76d397c7c35a629fe2a3754215cdaaad0c73a1fdc0072b144569e5322a71208b77d0f3d9a6b481cefbb4523b2d2bb1f6e8cebabef5b1e8eac

Download Submit
memory/1364-8-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads