gh0strat | cca9595e866a21f13b53f30d3409f5399b7ef76f5f3174c983a61bda9497e45c

Analysis

max time kernel
152s
max time network
185s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2022, 16:13

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General

Target

cca9595e866a21f13b53f30d3409f5399b7ef76f5f3174c983a61bda9497e45c.exe
Size

108KB
MD5

1504dfe8b0ea4fafd3f715543f166450
SHA1

5d54d4bf23a7f2b2ba5711807b234ac77df62761
SHA256

cca9595e866a21f13b53f30d3409f5399b7ef76f5f3174c983a61bda9497e45c
SHA512

4cbad4ce15ef265d1d5c8fa042c79b633d08174db9fdbd847a089b269d1dcc32fa6f57fbaf39a8afc5562092a32c199d1366d08d2d5fc51d27ef75225477f709
SSDEEP

3072:JMWQSyGtNZVqFEbYJutd8SVOR+adwbdTw+KBZF/XA:JMWQSyGJVqFGYktGD+6sdw+6r/w

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/2260-132-0x0000000000400000-0x000000000041E000-memory.dmp	family_gh0strat
behavioral2/files/0x0006000000022e5e-134.dat	family_gh0strat
behavioral2/memory/2260-135-0x0000000000400000-0x000000000041E000-memory.dmp	family_gh0strat
behavioral2/files/0x0006000000022e5e-136.dat	family_gh0strat
behavioral2/memory/5080-137-0x0000000010000000-0x000000001001E000-memory.dmp	family_gh0strat
behavioral2/memory/5080-138-0x0000000010000000-0x000000001001E000-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

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\FastUserSwitchingCompatibility\Parameters\ServiceDll = "C:\\Windows\\system32\\FastUserSwitchingCompatibility360.dll"	cca9595e866a21f13b53f30d3409f5399b7ef76f5f3174c983a61bda9497e45c.exe

Loads dropped DLL 1 IoCs

pid	Process
5080	SVCHOST.EXE

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\FastUserSwitchingCompatibility360.dll	cca9595e866a21f13b53f30d3409f5399b7ef76f5f3174c983a61bda9497e45c.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4064	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4064	taskkill.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 4064	2260	cca9595e866a21f13b53f30d3409f5399b7ef76f5f3174c983a61bda9497e45c.exe	80
PID 2260 wrote to memory of 4064	2260	cca9595e866a21f13b53f30d3409f5399b7ef76f5f3174c983a61bda9497e45c.exe	80
PID 2260 wrote to memory of 4064	2260	cca9595e866a21f13b53f30d3409f5399b7ef76f5f3174c983a61bda9497e45c.exe	80

C:\Users\Admin\AppData\Local\Temp\cca9595e866a21f13b53f30d3409f5399b7ef76f5f3174c983a61bda9497e45c.exe
"C:\Users\Admin\AppData\Local\Temp\cca9595e866a21f13b53f30d3409f5399b7ef76f5f3174c983a61bda9497e45c.exe"
1⤵
- Sets DLL path for service in the registry
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /t /im RSTray.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4064

C:\Windows\SysWOW64\SVCHOST.EXE
C:\Windows\SysWOW64\SVCHOST.EXE -K NETSVCS -s FastUserSwitchingCompatibility
1⤵
- Loads dropped DLL
PID:5080

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\FastUserSwitchingCompatibility360.dll

Filesize
96KB

MD5
4a5fff2d7f3f4252ea6b63970538385b

SHA1
28d4de211be989ebf511c0106e700afeb9469445

SHA256
aa44e79d9847968cad0309fbaa86b387d294af2a09bf113338c1f87df66773dd

SHA512
67d52e6454aad62e64a6dda8540ca8c8917a71ba0e901b4dfddeec2fc2abfbe9b700cb9c56522bd263752c6d924b299a133afbd3609981540e95b2a58807ffaa

Download Submit
\??\c:\windows\SysWOW64\fastuserswitchingcompatibility360.dll

Filesize
96KB

MD5
4a5fff2d7f3f4252ea6b63970538385b

SHA1
28d4de211be989ebf511c0106e700afeb9469445

SHA256
aa44e79d9847968cad0309fbaa86b387d294af2a09bf113338c1f87df66773dd

SHA512
67d52e6454aad62e64a6dda8540ca8c8917a71ba0e901b4dfddeec2fc2abfbe9b700cb9c56522bd263752c6d924b299a133afbd3609981540e95b2a58807ffaa

Download Submit
memory/2260-132-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2260-135-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/5080-137-0x0000000010000000-0x000000001001E000-memory.dmp

Filesize
120KB

Download
memory/5080-138-0x0000000010000000-0x000000001001E000-memory.dmp

Filesize
120KB

Download