gh0strat | 0d54d32363e61018cfcf27aa874fd0e79b1fef37c9b7eca776c7fb7435a2e21d

Analysis

max time kernel
144s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 14:12

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General

Target
ExeFile (301).exe
Size 375KB
Sample240820-rh56cszemk
SHA256 0d54d32363e61018cfcf27aa874fd0e79b1fef37c9b7eca776c7fb7435a2e21d
MD5 8cf28d39933c299f24876252daf55bab
SHA1 3da9fd77cf4029d9244382eb00af452484d109a8
SHA512 1f08f8cab0f72e8a4b43a3264e97050f7120c3c6755b2ee557e66d59d08f020b4c50042595ea5200ca4feb11bf0eec2053a257dd71f592af215abce21535564b
SSDEEP 6144:Yv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:Y4VOiF1WD7kE1dTYOi8V5u23zmWFy4
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat discovery rat upx

Malware Config

Signatures

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/2848-6-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral2/memory/2848-7-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral2/memory/5080-32-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral2/memory/5080-33-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral2/memory/2288-49-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral2/memory/2288-50-0x0000000010000000-0x0000000010362000-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

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	ExeFile (301).exe

Executes dropped EXE 4 IoCs

pid	Process
4232	SQLSerasi.exe
5080	SQLSerasi.exe
2288	SQLSerasi.exe
5060	SQLSerasi.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2848-2-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral2/memory/2848-6-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral2/memory/2848-7-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral2/memory/5080-32-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral2/memory/5080-33-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral2/memory/5080-29-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral2/memory/2288-49-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral2/memory/2288-50-0x0000000010000000-0x0000000010362000-memory.dmp	upx

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	SQLSerasi.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	SQLSerasi.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	SQLSerasi.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	SQLSerasi.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	ExeFile (301).exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	ExeFile (301).exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4192	5080	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 5 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	ExeFile (301).exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SQLSerasi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SQLSerasi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SQLSerasi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SQLSerasi.exe

Checks processor information in registry 2 TTPs 5 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	SQLSerasi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	SQLSerasi.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2	SQLSerasi.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SQLSerasi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	SQLSerasi.exe

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	SQLSerasi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	SQLSerasi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	SQLSerasi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	SQLSerasi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	SQLSerasi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	SQLSerasi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	SQLSerasi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	SQLSerasi.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	ExeFile (301).exe
Token: SeDebugPrivilege	4232	SQLSerasi.exe
Token: SeDebugPrivilege	5080	SQLSerasi.exe
Token: SeDebugPrivilege	5080	SQLSerasi.exe
Token: SeDebugPrivilege	5080	SQLSerasi.exe
Token: SeDebugPrivilege	2288	SQLSerasi.exe
Token: SeDebugPrivilege	5060	SQLSerasi.exe
Token: SeDebugPrivilege	2288	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 4232	2848	ExeFile (301).exe	87
PID 2848 wrote to memory of 4232	2848	ExeFile (301).exe	87
PID 2848 wrote to memory of 4232	2848	ExeFile (301).exe	87
PID 5080 wrote to memory of 2288	5080	SQLSerasi.exe	89
PID 5080 wrote to memory of 2288	5080	SQLSerasi.exe	89
PID 5080 wrote to memory of 2288	5080	SQLSerasi.exe	89
PID 5080 wrote to memory of 5060	5080	SQLSerasi.exe	90
PID 5080 wrote to memory of 5060	5080	SQLSerasi.exe	90
PID 5080 wrote to memory of 5060	5080	SQLSerasi.exe	90

C:\Users\Admin\AppData\Local\Temp\ExeFile (301).exe
"C:\Users\Admin\AppData\Local\Temp\ExeFile (301).exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
  "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4232

C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
"C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5080
- C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
  "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:2288
- C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
  "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 648
  2⤵
  - Program crash
  PID:4192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5080 -ip 5080
1⤵
PID:3056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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SQLSerasi.exe

Path C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
Size 39.4MB
SHA256 cf15f6ce1ce7c987a9993996b77bd0e97d98e26e9f4b45c17e24ec7586b1a512
MD5 aafb13d99b78acb6c095c96f96952f87
SHA1 d3cede1865234f563ad87794245d97127c815ce6
SHA512 61884ceb144ee3a0ad152eed50316df72878fc56ffae0c2287bc35fe8e76cb603ce6b797d4265873e097ee4f903ce84c0cb3845203a1ba9c4d668bbcc2f13079
SSDEEP 49152:5wNraJHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHq:ixr
MD5 SHA1 SHA512 SSDEEP

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memory/2288-49-0x0000000010000000-0x0000000010362000-memory.dmp

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memory/2288-54-0x0000000000400000-0x0000000000469000-memory.dmp

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memory/2288-50-0x0000000010000000-0x0000000010362000-memory.dmp

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memory/2848-1-0x0000000000464000-0x0000000000465000-memory.dmp

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memory/2848-2-0x0000000010000000-0x0000000010362000-memory.dmp

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memory/2848-5-0x0000000000400000-0x0000000000469000-memory.dmp

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memory/2848-6-0x0000000010000000-0x0000000010362000-memory.dmp

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memory/2848-7-0x0000000010000000-0x0000000010362000-memory.dmp

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memory/2848-21-0x0000000000400000-0x0000000000469000-memory.dmp

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memory/2848-0-0x0000000000400000-0x0000000000469000-memory.dmp

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memory/4232-22-0x0000000000400000-0x0000000000469000-memory.dmp

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memory/4232-36-0x0000000000400000-0x0000000000469000-memory.dmp

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memory/5060-52-0x0000000000400000-0x0000000000469000-memory.dmp

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memory/5080-29-0x0000000010000000-0x0000000010362000-memory.dmp

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memory/5080-34-0x0000000000400000-0x0000000000469000-memory.dmp

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memory/5080-33-0x0000000010000000-0x0000000010362000-memory.dmp

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memory/5080-32-0x0000000010000000-0x0000000010362000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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