gh0strat | db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664

General

Target
db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe
Size 1.7MB
Sample261007-jpye4avy6j
SHA256 db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664
MD5 7e1b45dda686a270d45f6fff016cdb64
SHA1 bda72276dfff52dbc88c0702e4e674476a1bd99a
SHA512 195833c88d06bf80db6be47e7bfe93ab3dfb2ebb1b632f1147fe3b4ecd403ebb91fd8887d3d8de18652bc6619bacfb2be0ecf952e7c4dfd5ba31d388a8523b8b
SSDEEP 24576:t+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nH1PXw9y8PuFYoQL3KxFwvtnL:8erL7Vw9yKuEL3AFAKzdur
TLSH
T12185E043E6765C93C3CC4436CC7AD2B677217A1CA3F79636B1C0AADBB6B12603D2055A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery gh0strat persistence rat upx

Malware Config

Signatures

Family: 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

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000e00000001c526-15.dat	family_gh0strat
behavioral2/memory/3500-25-0x0000000000400000-0x0000000000934000-memory.dmp	family_gh0strat

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\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240724812.txt"	db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe

Executes dropped EXE 1 IoCs

pid	Process
2868	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
3500	db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe
2992	svchost.exe
2868	Remote Data.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\AppVClient.exe	db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe
File created	C:\Windows\SysWOW64\240724812.txt	db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File opened for modification	C:\Windows\System32\alg.exe	db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3500-0-0x0000000000400000-0x0000000000934000-memory.dmp	upx
behavioral2/memory/3500-25-0x0000000000400000-0x0000000000934000-memory.dmp	upx

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	Remote Data.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	Remote Data.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	db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remote Data.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	3500	db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 2868	2992	svchost.exe	93

C:\Users\Admin\AppData\Local\Temp\db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe
"C:\Users\Admin\AppData\Local\Temp\db87ba19ab58a2fbf9773e50d950d8a9c225fd495637c54a05df84dc751f0664.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3500

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:3176

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240724812.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  PID:2868

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k "Remote Data"
1⤵
PID:3876

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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240724812.txt

Path C:\Windows\SysWOW64\240724812.txt
Size 899KB
SHA256 59010a7d1478a9f98de5e84a9d384ead07f2470a7fbf7ebc7c135018b9921e33
MD5 60e586131cf551f856ee0448beb47efb
SHA1 5f1b6a2ab5e1f8c02a2f3b7b28b9a4b80ddc556b
SHA512 ef6b74a8a7eadba4b4df479a4b5bd2c2cdda9bffc42d3350b29c4a784cb7d0e270d5e016e2010d1829e06c98873cdd4b4bdd7206c80c7710ee1869d74903285c
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PXW:7wqd87VW
TLSH
T10A152983F6B68CA3C7C90435DC7AD2B67B24761CE3F786327280E9D7B5B6251781421A
MD5 SHA1 SHA512 SSDEEP TLSH

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Remote Data.exe

Path C:\Windows\SysWOW64\Remote Data.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3500-0-0x0000000000400000-0x0000000000934000-memory.dmp

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memory/3500-1-0x0000000002930000-0x00000000029B5000-memory.dmp

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memory/3500-7-0x0000000002930000-0x00000000029B5000-memory.dmp

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memory/3500-13-0x00000000005AB000-0x00000000005AC000-memory.dmp

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memory/3500-25-0x0000000000400000-0x0000000000934000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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