gh0strat | 829567da24356078abb1ff8beb1b53e460cb4f1d67fab2b1d605912b8b7c438c

General

Target

6378a3a153dba78e21c4d7f96d4dfec0.exe
Size

32KB
MD5

6378a3a153dba78e21c4d7f96d4dfec0
SHA1

a5cd66f84195cdd90362c62746cfefeddc49ed6b
SHA256

829567da24356078abb1ff8beb1b53e460cb4f1d67fab2b1d605912b8b7c438c
SHA512

b320eb7f68a619d62dbe6a83b27cea5770319bc986dcf0a2344f9dc01a18b91af0be173c1d526c1fcbb43d9a91dd787f3a800a3a5ecb68fb4df66ca55ea8ccb2
SSDEEP

768:zkw/iOWTK3JWhOM/qZh7UJGcZ/iGUOnbcuyD7U7s9:/QK52fqZSIA6GUOnouy87s9

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral2/files/0x000600000002313a-135.dat	family_gh0strat
behavioral2/files/0x000600000002313a-139.dat	family_gh0strat
behavioral2/files/0x000600000002313a-138.dat	family_gh0strat
behavioral2/memory/1244-141-0x0000000000400000-0x0000000000420000-memory.dmp	family_gh0strat
behavioral2/files/0x000600000002313a-145.dat	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
RunningRat
RunningRat is a remote access trojan first seen in 2018.
rat runningrat

RunningRat payload 1 IoCs

resource	yara_rule
behavioral2/memory/1244-133-0x0000000000400000-0x0000000000420000-memory.dmp	family_runningrat

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\serivces\Parameters\ServiceDll = "C:\\Windows\\system32\\240548093.dll"	6378a3a153dba78e21c4d7f96d4dfec0.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	6378a3a153dba78e21c4d7f96d4dfec0.exe

Executes dropped EXE 1 IoCs

pid	Process
5040	serivces.exe

Loads dropped DLL 3 IoCs

pid	Process
1244	6378a3a153dba78e21c4d7f96d4dfec0.exe
1424	svchost.exe
5040	serivces.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1244-133-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/1244-141-0x0000000000400000-0x0000000000420000-memory.dmp	upx

Creates a Windows Service
persistence

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240548093.dll	6378a3a153dba78e21c4d7f96d4dfec0.exe
File created	C:\Windows\SysWOW64\serivces.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\serivces.exe	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4580	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1244	6378a3a153dba78e21c4d7f96d4dfec0.exe
1244	6378a3a153dba78e21c4d7f96d4dfec0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1244	6378a3a153dba78e21c4d7f96d4dfec0.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1244	6378a3a153dba78e21c4d7f96d4dfec0.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 3876	1244	6378a3a153dba78e21c4d7f96d4dfec0.exe	86
PID 1244 wrote to memory of 3876	1244	6378a3a153dba78e21c4d7f96d4dfec0.exe	86
PID 1244 wrote to memory of 3876	1244	6378a3a153dba78e21c4d7f96d4dfec0.exe	86
PID 3876 wrote to memory of 4580	3876	cmd.exe	88
PID 3876 wrote to memory of 4580	3876	cmd.exe	88
PID 3876 wrote to memory of 4580	3876	cmd.exe	88
PID 1424 wrote to memory of 5040	1424	svchost.exe	89
PID 1424 wrote to memory of 5040	1424	svchost.exe	89
PID 1424 wrote to memory of 5040	1424	svchost.exe	89

C:\Users\Admin\AppData\Local\Temp\6378a3a153dba78e21c4d7f96d4dfec0.exe
"C:\Users\Admin\AppData\Local\Temp\6378a3a153dba78e21c4d7f96d4dfec0.exe"
1⤵
- Sets DLL path for service in the registry
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\6378a3a153dba78e21c4d7f96d4dfec0.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3876
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - Runs ping.exe
    PID:4580

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "serivces"
1⤵
PID:2036

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "serivces"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Windows\SysWOW64\serivces.exe
  C:\Windows\system32\serivces.exe "c:\windows\system32\240548093.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:5040

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\240548093.dll

Filesize
37KB

MD5
930fe8d5aca539f7b32d2bd1b0bffcff

SHA1
2061bb9069cef64c98da6339b82d356a5991415c

SHA256
56d548aed25b26a26990a4985272fd466bc44b67fd6269d6af3f7e7c2ae7b1a5

SHA512
aac894efb15048b47995faec9c26171508142374e1e032d183dc17eae88d56e92c4a1c85c024b60e0db97c7699f54e2640f071aa1655f863143a2d9be81055f5

Download Submit
C:\Windows\SysWOW64\240548093.dll

Filesize
37KB

MD5
930fe8d5aca539f7b32d2bd1b0bffcff

SHA1
2061bb9069cef64c98da6339b82d356a5991415c

SHA256
56d548aed25b26a26990a4985272fd466bc44b67fd6269d6af3f7e7c2ae7b1a5

SHA512
aac894efb15048b47995faec9c26171508142374e1e032d183dc17eae88d56e92c4a1c85c024b60e0db97c7699f54e2640f071aa1655f863143a2d9be81055f5

Download Submit
C:\Windows\SysWOW64\240548093.dll

Filesize
37KB

MD5
930fe8d5aca539f7b32d2bd1b0bffcff

SHA1
2061bb9069cef64c98da6339b82d356a5991415c

SHA256
56d548aed25b26a26990a4985272fd466bc44b67fd6269d6af3f7e7c2ae7b1a5

SHA512
aac894efb15048b47995faec9c26171508142374e1e032d183dc17eae88d56e92c4a1c85c024b60e0db97c7699f54e2640f071aa1655f863143a2d9be81055f5

Download Submit
C:\Windows\SysWOW64\serivces.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
C:\Windows\SysWOW64\serivces.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
\??\c:\windows\SysWOW64\240548093.dll

Filesize
37KB

MD5
930fe8d5aca539f7b32d2bd1b0bffcff

SHA1
2061bb9069cef64c98da6339b82d356a5991415c

SHA256
56d548aed25b26a26990a4985272fd466bc44b67fd6269d6af3f7e7c2ae7b1a5

SHA512
aac894efb15048b47995faec9c26171508142374e1e032d183dc17eae88d56e92c4a1c85c024b60e0db97c7699f54e2640f071aa1655f863143a2d9be81055f5

Download Submit
memory/1244-133-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1244-141-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

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