gh0strat | 785ac94d5008640935fdaef56501c812a52135beb22e3e5e75e4560feef15f6f

Analysis

max time kernel
150s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 12:52

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General

Target

bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe
Size

122KB
MD5

bbce369c7e1bfe6251c3de778086fa8f
SHA1

940472846600bca9618e1b83e5ea215fd250e7f3
SHA256

785ac94d5008640935fdaef56501c812a52135beb22e3e5e75e4560feef15f6f
SHA512

5d8991630fd00a9e36fbc99d6d01950fe9425252eb088103592a7b80783088236dc0ac6bd563553085537e20e608528e7f57807173ddeaaf436a1506b11f7fef
SSDEEP

3072:IoyIRyQf8ZAmfmBFFEjYfGXwel4A19+8UbetQFvjBd8g9EOS:pyCyQfeAGmBFFFfGF71MletijBdM

Score

10^/10

gh0strat discovery persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/2340-0-0x0000000000400000-0x0000000000420000-memory.dmp	family_gh0strat
behavioral2/memory/4008-1-0x0000000000400000-0x0000000000420000-memory.dmp	family_gh0strat
behavioral2/files/0x000a000000023466-7.dat	family_gh0strat
behavioral2/memory/4008-11-0x0000000000400000-0x0000000000420000-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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Drivers\beep.sys	svchost.exe

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\FastUserSwitchingCompatibility\Parameters\ServiceDll = "C:\\Windows\\System32\\FastUserSwitchingCompatibility.dll"	bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3136	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
3136	svchost.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\FastUserSwitchingCompatibility.dll	bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3412	4008	WerFault.exe	84

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	bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
652	Process not Found

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 4008	2340	bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe	84
PID 2340 wrote to memory of 4008	2340	bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe	84
PID 2340 wrote to memory of 4008	2340	bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\bbce369c7e1bfe6251c3de778086fa8f_JaffaCakes118.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:4008
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4008 -s 360
    3⤵
    - Program crash
    PID:3412

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s FastUserSwitchingCompatibility
1⤵
- Drops file in Drivers directory
- Deletes itself
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:3136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4008 -ip 4008
1⤵
PID:220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\FastUserSwitchingCompatibility.dll

Filesize
101KB

MD5
9f01d68c929c18af842ee11f9b69b18f

SHA1
d16bebf2999c3652c0cabb83bf4329b2abe7cdcc

SHA256
a3998f0022a63809cd604d3f0616bb317e827dd03f74d0b0752f9bdc38cb5a20

SHA512
02248110757aa44df7255d08064f89feef74f9c76c6731516b9e1752de89b7975243ab29ce6a692ac7a6b1abcf7ea0f84c4e1b16ce88d48810d65baba906bd8d

Download Submit
memory/2340-0-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/4008-1-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/4008-11-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download