gh0strat | 36f8162d8d41854a20bf62d22a931ca4e6932d933a97c9909b07c17f62869129

General

Target

JaffaCakes118_469a623cf95b01ba60220da7dccfbb1a.exe
Size

93KB
MD5

469a623cf95b01ba60220da7dccfbb1a
SHA1

997e8c83e8d5ffdf81f3729470811ce9ba79ecd4
SHA256

36f8162d8d41854a20bf62d22a931ca4e6932d933a97c9909b07c17f62869129
SHA512

260ea6a1ec3e6b8e7a2a87a6a7985f823145d205791f1f03c68a511f2dcf7b314fc91b1045f1da2e7886139590ab36284a32d94d7d33bc7f2ed7121e4e5a6aba
SSDEEP

1536:fpFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8prCSQxr:f/S4jHS8q/3nTzePCwNUh4E90xr

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x00080000000186c3-20.dat	family_gh0strat
behavioral1/memory/2052-22-0x0000000000400000-0x000000000044F000-memory.dmp	family_gh0strat
behavioral1/memory/2780-27-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral1/memory/2780-29-0x0000000020000000-0x0000000020027000-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
2052	dpjorwoqlu

Executes dropped EXE 1 IoCs

pid	Process
2052	dpjorwoqlu

Loads dropped DLL 3 IoCs

pid	Process
2540	JaffaCakes118_469a623cf95b01ba60220da7dccfbb1a.exe
2540	JaffaCakes118_469a623cf95b01ba60220da7dccfbb1a.exe
2780	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\msdxfhqrsa	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_469a623cf95b01ba60220da7dccfbb1a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dpjorwoqlu
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
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	svchost.exe
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

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2052	dpjorwoqlu
2780	svchost.exe
2780	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	2052	dpjorwoqlu
Token: SeBackupPrivilege	2052	dpjorwoqlu
Token: SeBackupPrivilege	2052	dpjorwoqlu
Token: SeRestorePrivilege	2052	dpjorwoqlu
Token: SeBackupPrivilege	2780	svchost.exe
Token: SeRestorePrivilege	2780	svchost.exe
Token: SeBackupPrivilege	2780	svchost.exe
Token: SeBackupPrivilege	2780	svchost.exe
Token: SeSecurityPrivilege	2780	svchost.exe
Token: SeSecurityPrivilege	2780	svchost.exe
Token: SeBackupPrivilege	2780	svchost.exe
Token: SeBackupPrivilege	2780	svchost.exe
Token: SeSecurityPrivilege	2780	svchost.exe
Token: SeBackupPrivilege	2780	svchost.exe
Token: SeBackupPrivilege	2780	svchost.exe
Token: SeSecurityPrivilege	2780	svchost.exe
Token: SeBackupPrivilege	2780	svchost.exe
Token: SeRestorePrivilege	2780	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2052	2540	JaffaCakes118_469a623cf95b01ba60220da7dccfbb1a.exe	29
PID 2540 wrote to memory of 2052	2540	JaffaCakes118_469a623cf95b01ba60220da7dccfbb1a.exe	29
PID 2540 wrote to memory of 2052	2540	JaffaCakes118_469a623cf95b01ba60220da7dccfbb1a.exe	29
PID 2540 wrote to memory of 2052	2540	JaffaCakes118_469a623cf95b01ba60220da7dccfbb1a.exe	29

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_469a623cf95b01ba60220da7dccfbb1a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_469a623cf95b01ba60220da7dccfbb1a.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2540
- \??\c:\users\admin\appdata\local\dpjorwoqlu
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_469a623cf95b01ba60220da7dccfbb1a.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_469a623cf95b01ba60220da7dccfbb1a.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2052

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:2780

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%\gxfxq.cc3

Filesize
24.1MB

MD5
5843c632429d213d6b77bfe1af24b6c1

SHA1
04aa773883a23790470951a942c2c6b680ef8711

SHA256
5b25d242b8cdf49d51d1e90a1ec5315204d525b9e2cbd1e6454ca78213594779

SHA512
ce8dcc624b5a0053977582abbc7265b413feece220e6d2298e6df0d16aa54f5576ccb0e7662ae2044a84c5915e3ba1413b5a53793d03f6da65fd1bf9edf1b367

Download Submit
\Users\Admin\AppData\Local\dpjorwoqlu

Filesize
22.1MB

MD5
27e6f4f76c137bbd3a52f4d3f9a3c69e

SHA1
c7bb83a71224771c794c98a4372f6916c8a5e71b

SHA256
dbdd40fa5b3f916358c7d9f9cb81ea4d579006fd94a1af7c609965d2cbcdc62a

SHA512
48ab89f9347baa91f249c3bee1ea5801cce1d55d0446a62140a821b7e37b0e4673664f5d7514662ed1b7e564b0a41ab651f0910fdbc093766ca19e550320729d

Download Submit
memory/2052-17-0x0000000000030000-0x0000000000040000-memory.dmp

Filesize
64KB

Download
memory/2052-16-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2052-22-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2540-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2540-1-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2540-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2540-6-0x0000000000230000-0x000000000027F000-memory.dmp

Filesize
316KB

Download
memory/2780-25-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/2780-27-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/2780-29-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads