gh0strat | 78d9a3f43771a66b2ca4a3b06cb534ef477855c34d8673dc2051d8a203ffe66c

General

Target

fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe
Size

96KB
MD5

fc62e83e4105ebb4b73f995568f46e63
SHA1

7c4d494642487e8c1ffee930ef2e221238e4539a
SHA256

78d9a3f43771a66b2ca4a3b06cb534ef477855c34d8673dc2051d8a203ffe66c
SHA512

a4c5eb9866051629e6bd53badbccfdc060ea2355b7286fe35ce9f3365e1ee0e5a16e518e533b85141f94525f9fe0d9052c0cffdb342f5464f68d4ce63b722284
SSDEEP

1536:oKFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8pryTNH9VtWrZt:oQS4jHS8q/3nTzePCwNUh4E9yxdoZt

Score

10^/10

gh0strat bootkit persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

Processes:

resource	yara_rule
\??\c:\programdata\application data\storm\update\%sessionname%\sfqyy.cc3	family_gh0strat
behavioral1/memory/1792-22-0x0000000000400000-0x000000000044E21C-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

Processes:

fgqpluhywl

pid process

1792 fgqpluhywl
Executes dropped EXE 1 IoCs

Processes:

fgqpluhywl

pid process

1792 fgqpluhywl
Loads dropped DLL 3 IoCs

Processes:

fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exesvchost.exe

pid process

2128 fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe
2128 fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe
2672 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

Processes:

svchost.exe

description ioc process

File opened for modification \??\PhysicalDrive0 svchost.exe
Drops file in System32 directory 1 IoCs

Processes:

svchost.exe

description ioc process

File created C:\Windows\SysWOW64\naycncofxm svchost.exe

pid	process
1792	fgqpluhywl

pid	process
1792	fgqpluhywl

pid	process
2128	fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe
2128	fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe
2672	svchost.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	svchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\naycncofxm	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

Processes:

svchost.exe

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

Processes:

svchost.exe

description	ioc	process
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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

fgqpluhywlsvchost.exe

pid process

1792 fgqpluhywl
2672 svchost.exe
2672 svchost.exe

pid	process
1792	fgqpluhywl
2672	svchost.exe
2672	svchost.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

fgqpluhywlsvchost.exe

description	pid	process
Token: SeRestorePrivilege	1792	fgqpluhywl
Token: SeBackupPrivilege	1792	fgqpluhywl
Token: SeBackupPrivilege	1792	fgqpluhywl
Token: SeRestorePrivilege	1792	fgqpluhywl
Token: SeBackupPrivilege	2672	svchost.exe
Token: SeRestorePrivilege	2672	svchost.exe
Token: SeBackupPrivilege	2672	svchost.exe
Token: SeBackupPrivilege	2672	svchost.exe
Token: SeSecurityPrivilege	2672	svchost.exe
Token: SeSecurityPrivilege	2672	svchost.exe
Token: SeBackupPrivilege	2672	svchost.exe
Token: SeBackupPrivilege	2672	svchost.exe
Token: SeSecurityPrivilege	2672	svchost.exe
Token: SeBackupPrivilege	2672	svchost.exe
Token: SeBackupPrivilege	2672	svchost.exe
Token: SeSecurityPrivilege	2672	svchost.exe
Token: SeBackupPrivilege	2672	svchost.exe
Token: SeRestorePrivilege	2672	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe

description	pid	process	target process
PID 2128 wrote to memory of 1792	2128	fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe	fgqpluhywl
PID 2128 wrote to memory of 1792	2128	fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe	fgqpluhywl
PID 2128 wrote to memory of 1792	2128	fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe	fgqpluhywl
PID 2128 wrote to memory of 1792	2128	fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe	fgqpluhywl

C:\Users\Admin\AppData\Local\Temp\fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2128

\??\c:\users\admin\appdata\local\fgqpluhywl
"C:\Users\Admin\AppData\Local\Temp\fc62e83e4105ebb4b73f995568f46e63_JaffaCakes118.exe" a -sc:\users\admin\appdata\local\temp\fc62e83e4105ebb4b73f995568f46e63_jaffacakes118.exe
2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1792

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
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2672

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\??\c:\programdata\application data\storm\update\%sessionname%\sfqyy.cc3
Filesize
20.0MB

MD5
098139247e914ca048677577ba3f8c08

SHA1
7f88305c0ee16436bb9a1b8417c2126060c2c18b

SHA256
7ac4b2c3e7d3fa1e1ec15afd43287cbce8ac5ca68a7e079ce749db2cfbeb00aa

SHA512
1cdbcee0676a097f29dcb5603ddb063cc1b39dbc2d17049e11ad3925558d80690964174fbd7da43470bd155e0294324f0ac46a8fa6b2f07d9d77ff8344f27b2b

Download Submit
\Users\Admin\AppData\Local\fgqpluhywl
Filesize
20.6MB

MD5
f551c1deaafc3bbdf91a589090db9b1b

SHA1
05707c6b21cd24094a9aefb113b5f437384d68d7

SHA256
0e95b0d2656d4381a50d3dc7f3ce06e0b43934ad8dbad0290b9c8f32a297b71c

SHA512
fc6db95711cf2003479fb2a1d5a9b8a4bf209a33922fc04ff5d1e78a527aa97a3e67be77543819336ea24064f9de782d71af66104e464da91cf80ab16538470f

Download Submit
memory/1792-16-0x0000000000400000-0x000000000044E21C-memory.dmp

Filesize
312KB

Download
memory/1792-17-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1792-22-0x0000000000400000-0x000000000044E21C-memory.dmp

Filesize
312KB

Download
memory/2128-0-0x0000000000400000-0x000000000044E21C-memory.dmp

Filesize
312KB

Download
memory/2128-2-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/2128-13-0x0000000000350000-0x000000000039F000-memory.dmp

Filesize
316KB

Download
memory/2128-12-0x0000000000400000-0x000000000044E21C-memory.dmp

Filesize
312KB

Download
memory/2128-6-0x0000000000350000-0x000000000039F000-memory.dmp

Filesize
316KB

Download
memory/2128-25-0x0000000000350000-0x000000000039F000-memory.dmp

Filesize
316KB

Download
memory/2672-23-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads