gh0strat | 19be25c510de09e9ac0f3acd7704bc96e7b6744fdf0ab090fc2efcdb70b4fb71

General

Target

872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe
Size

96KB
MD5

872a501ce53c3a9281f991d8b8b658fc
SHA1

be1748619b990d141fe1cd1a7387ba07d95e6eb5
SHA256

19be25c510de09e9ac0f3acd7704bc96e7b6744fdf0ab090fc2efcdb70b4fb71
SHA512

b0322fe11cdfc7d91b7cd60ea3e88d031b2dbedefd9183ab706fbc281a07fe613c51c58c560a6a3eb072353f5d84e090b8e80438642a7540ae05b70c30f0768d
SSDEEP

1536:zHFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prFzTqjQOwU:zxS4jHS8q/3nTzePCwNUh4E9snwU

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000800000001638b-19.dat	family_gh0strat
behavioral1/memory/2744-21-0x0000000000400000-0x000000000044E304-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
2744	ghttdjkwpr

Executes dropped EXE 1 IoCs

pid	Process
2744	ghttdjkwpr

Loads dropped DLL 3 IoCs

pid	Process
2640	872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe
2640	872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe
2784	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\iqvfvvsjhp	svchost.exe
File created	C:\Windows\SysWOW64\iykxeyuhtl	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	872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ghttdjkwpr
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
2744	ghttdjkwpr
2784	svchost.exe
2784	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2744	ghttdjkwpr
Token: SeBackupPrivilege	2744	ghttdjkwpr
Token: SeBackupPrivilege	2744	ghttdjkwpr
Token: SeRestorePrivilege	2744	ghttdjkwpr
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeSecurityPrivilege	2784	svchost.exe
Token: SeSecurityPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeSecurityPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeSecurityPrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2744	2640	872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe	30
PID 2640 wrote to memory of 2744	2640	872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe	30
PID 2640 wrote to memory of 2744	2640	872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe	30
PID 2640 wrote to memory of 2744	2640	872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- \??\c:\users\admin\appdata\local\ghttdjkwpr
  "C:\Users\Admin\AppData\Local\Temp\872a501ce53c3a9281f991d8b8b658fc_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\872a501ce53c3a9281f991d8b8b658fc_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2744

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:2784

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\ghttdjkwpr

Filesize
24.9MB

MD5
3cf02ae2c3920bdc0216b5ad7424564b

SHA1
2ad3319d37af9183efd09f34bd3c67a53d748069

SHA256
c416b268c29dced4e1c8516ae0ec329e57bb168f2bf44ec2ac5d600dcfc91860

SHA512
a4ae741ecdf835e3e802916c8a3bef1343dacf20411f3ae9350c667b1839125939fad97b09c695c5a64e2e3085e388f41a035e8497f743bd45f4d669e6940e77

Download Submit
\??\c:\programdata\application data\storm\update\%sessionname%\rookm.cc3

Filesize
19.0MB

MD5
02c815c6ae86ceda99dccc7a1e45a3de

SHA1
b74fb085f9e2b0107dad88feaf939aac0bb5233f

SHA256
62e350d4267eb5d63f9717cbac6a6878e06f71b80a992afe2f21a8a483dac166

SHA512
44174d6ebc89f854ba0860fe270455d8186da4517655e170379a8fa20b847abdbf79122f3a9969666c2de3ccd9a79dcfccd162a1aa94c326e15f6eacc0cf5e8f

Download Submit
memory/2640-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2640-1-0x0000000000400000-0x000000000044E304-memory.dmp

Filesize
312KB

Download
memory/2640-12-0x0000000000400000-0x000000000044E304-memory.dmp

Filesize
312KB

Download
memory/2744-16-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2744-14-0x0000000000400000-0x000000000044E304-memory.dmp

Filesize
312KB

Download
memory/2744-21-0x0000000000400000-0x000000000044E304-memory.dmp

Filesize
312KB

Download
memory/2784-22-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads