gh0strat | 5f3008ad95031759401227c1dac17f54a0ed38fce21270afc1d2287e8f1058e7

General

Target

JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe
Size

369KB
MD5

65c8c246caa9b09a2b1e87f9d68af654
SHA1

b4ad1936cb51aec53c943ff05f9ae6daf6445f7f
SHA256

5f3008ad95031759401227c1dac17f54a0ed38fce21270afc1d2287e8f1058e7
SHA512

b15f8429bf5bc9931f2d36209f1d82c5e502c419cdc55653f875fbde6c1878c6de3140ab99b0be6140774a00acd57ac2eb0995cca58b8587100492f51069d67e
SSDEEP

6144:pw0avOvtYSiod4uYzqAvZd/2469vmRcU4kRRourBQOWxdOLQzzDFNyBSVdLM:+vGvViG4HOKZde6RcoXfopM

Score

10^/10

gh0strat bootkit discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0007000000018792-26.dat	family_gh0strat
behavioral1/memory/1036-29-0x0000000000400000-0x0000000000432800-memory.dmp	family_gh0strat
behavioral1/memory/2740-31-0x0000000020000000-0x0000000020027000-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

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000e000000015cbd-2.dat	acprotect

Deletes itself 1 IoCs

pid	Process
1036	gkmjqcluyk

Executes dropped EXE 1 IoCs

pid	Process
1036	gkmjqcluyk

Loads dropped DLL 5 IoCs

pid	Process
2460	JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe
2460	JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe
2460	JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe
1036	gkmjqcluyk
2740	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\yatbgujihp	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_65c8c246caa9b09a2b1e87f9d68af654.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gkmjqcluyk
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
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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1036	gkmjqcluyk
2740	svchost.exe
2740	svchost.exe
2740	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	1036	gkmjqcluyk
Token: SeBackupPrivilege	1036	gkmjqcluyk
Token: SeBackupPrivilege	1036	gkmjqcluyk
Token: SeRestorePrivilege	1036	gkmjqcluyk
Token: SeBackupPrivilege	2740	svchost.exe
Token: SeRestorePrivilege	2740	svchost.exe
Token: SeBackupPrivilege	2740	svchost.exe
Token: SeBackupPrivilege	2740	svchost.exe
Token: SeSecurityPrivilege	2740	svchost.exe
Token: SeSecurityPrivilege	2740	svchost.exe
Token: SeBackupPrivilege	2740	svchost.exe
Token: SeBackupPrivilege	2740	svchost.exe
Token: SeSecurityPrivilege	2740	svchost.exe
Token: SeBackupPrivilege	2740	svchost.exe
Token: SeBackupPrivilege	2740	svchost.exe
Token: SeSecurityPrivilege	2740	svchost.exe
Token: SeBackupPrivilege	2740	svchost.exe
Token: SeRestorePrivilege	2740	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2460	JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe
1036	gkmjqcluyk

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 1036	2460	JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe	31
PID 2460 wrote to memory of 1036	2460	JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe	31
PID 2460 wrote to memory of 1036	2460	JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe	31
PID 2460 wrote to memory of 1036	2460	JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2460
- \??\c:\users\admin\appdata\local\gkmjqcluyk
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65c8c246caa9b09a2b1e87f9d68af654.exe" a -sc:\users\admin\appdata\local\temp\jaffacakes118_65c8c246caa9b09a2b1e87f9d68af654.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1036

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:2740

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

Loading Replay Monitor...

Downloads

\??\c:\programdata\application data\storm\update\%sessionname%\tcyqn.cc3

Filesize
19.1MB

MD5
9cfbb5cd6e78056cf0271fdc817545a3

SHA1
f5dbb1485409511e67c36233107a1379d6a90f10

SHA256
c1348d5e0e53484467962f5038c6f2502d0bfbcd4937faa7071f63564007950c

SHA512
3738e5bd3722260f430329a35e1510ac4a5803e1e8ba3932dad79abad1d0f6f5c923eb2d9ebcf2e3859fe87897db36af1546d3375466ab52a4c924d184b6c58f

Download Submit
\Users\Admin\AppData\Local\Temp\lxlE975.tmp

Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
\Users\Admin\AppData\Local\gkmjqcluyk

Filesize
20.3MB

MD5
68ec5d53f957ec2ab91a629bf271a644

SHA1
a36a8e006a0f05fa828fa5bfd84694b65449db97

SHA256
d30c9b8c7557929a49927fd155cc3572fda154f25309837c0bfcb2b96ec6c1c4

SHA512
b0be575d54c131726f3771d87911aaef1cbae84f43eec0cfa3bfe3a2ec751149873a91d4775f7c533fd40c29211eb88279d2cee1f15594595e17292fdd49d746

Download Submit
memory/1036-18-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/1036-23-0x00000000002A0000-0x0000000000313000-memory.dmp

Filesize
460KB

Download
memory/1036-29-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/1036-28-0x00000000002A0000-0x0000000000313000-memory.dmp

Filesize
460KB

Download
memory/2460-0-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/2460-8-0x00000000002E0000-0x0000000000313000-memory.dmp

Filesize
204KB

Download
memory/2460-16-0x0000000000220000-0x0000000000293000-memory.dmp

Filesize
460KB

Download
memory/2460-15-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/2460-4-0x0000000000220000-0x0000000000293000-memory.dmp

Filesize
460KB

Download
memory/2740-30-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2740-31-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads