gh0strat | 02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e

General

Target

02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe
Size

960KB
MD5

d57075473f47527e120aadd97c041fc3
SHA1

8c2f7ef3bffe4eaad1a7dd3d9e281762afb4f975
SHA256

02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e
SHA512

e4a8ddd313e4d86422d80b347122f61b39c54a518849e5f70b0243a536d1991f5fea7c8e0c734816726abb26087a7b44fd06d734d84a1d5f02a3e44899e5ff1e
SSDEEP

24576:bDZqBmKrshiiLSZcOKiAtrgH/Yflt4S+n:bsZrshiHZcDltrs/ult4t

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/files/0x0005000000022662-135.dat	family_gh0strat
behavioral2/files/0x0005000000022662-136.dat	family_gh0strat
behavioral2/memory/4716-138-0x0000000000400000-0x00000000005F9000-memory.dmp	family_gh0strat
behavioral2/memory/208-139-0x0000000010000000-0x0000000010023000-memory.dmp	family_gh0strat
behavioral2/files/0x0005000000022662-140.dat	family_gh0strat
behavioral2/files/0x0005000000022662-142.dat	family_gh0strat
behavioral2/memory/4716-144-0x0000000000400000-0x00000000005F9000-memory.dmp	family_gh0strat
behavioral2/memory/4260-146-0x0000000010000000-0x0000000010023000-memory.dmp	family_gh0strat
behavioral2/memory/5008-147-0x0000000010000000-0x0000000010023000-memory.dmp	family_gh0strat
behavioral2/memory/4260-148-0x0000000010000000-0x0000000010023000-memory.dmp	family_gh0strat
behavioral2/memory/5008-149-0x0000000010000000-0x0000000010023000-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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe

Blocklisted process makes network request 2 IoCs

flow	pid	Process
26	4260	rundll32.exe
75	4260	rundll32.exe

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\\RnmmtfC.dll"	rundll32.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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Wine	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe

Loads dropped DLL 3 IoCs

pid	Process
208	rundll32.exe
5008	svchost.exe
4260	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\RnmmtfC.dll	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4716	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4716	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe
4716	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5008	svchost.exe
Token: SeDebugPrivilege	4260	rundll32.exe
Token: SeDebugPrivilege	4260	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 208	4716	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe	83
PID 4716 wrote to memory of 208	4716	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe	83
PID 4716 wrote to memory of 208	4716	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe	83
PID 5008 wrote to memory of 4260	5008	svchost.exe	85
PID 5008 wrote to memory of 4260	5008	svchost.exe	85
PID 5008 wrote to memory of 4260	5008	svchost.exe	85
PID 4716 wrote to memory of 4632	4716	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe	86
PID 4716 wrote to memory of 4632	4716	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe	86
PID 4716 wrote to memory of 4632	4716	02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe	86

C:\Users\Admin\AppData\Local\Temp\02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe
"C:\Users\Admin\AppData\Local\Temp\02d5a19dc879f4c12a184fbea0272b5e3b68425a4797900c662e5c535b10eb1e.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- Identifies Wine through registry keys
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4716
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\RnmmtfC.dll Install
  2⤵
  - Sets DLL path for service in the registry
  - Loads dropped DLL
  PID:208
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\02D5A1~1.EXE >> NUL
  2⤵
  PID:4632

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s FastUserSwitchingCompatibility
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5008
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe c:\windows\system32\rnmmtfc.dll wintest
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  PID:4260

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

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\RnmmtfC.dll

Filesize
116KB

MD5
ec178954ae0ae611ca51636b4ace99b7

SHA1
7f207432038e05c06ff082a7fd6451b7bbbb31fe

SHA256
4097800176004e544812351a8da27a5d3ffc21e75eace8fd26d3c558d6c0b774

SHA512
7305962407585422f7e1f76ae1945cdbf59080322f3507a8976f054ac79538210ded8ec2427c0a848300a1ff1cac55eed7bd647477bea3671fb248918e7af105

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

Filesize
116KB

MD5
ec178954ae0ae611ca51636b4ace99b7

SHA1
7f207432038e05c06ff082a7fd6451b7bbbb31fe

SHA256
4097800176004e544812351a8da27a5d3ffc21e75eace8fd26d3c558d6c0b774

SHA512
7305962407585422f7e1f76ae1945cdbf59080322f3507a8976f054ac79538210ded8ec2427c0a848300a1ff1cac55eed7bd647477bea3671fb248918e7af105

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

Filesize
116KB

MD5
ec178954ae0ae611ca51636b4ace99b7

SHA1
7f207432038e05c06ff082a7fd6451b7bbbb31fe

SHA256
4097800176004e544812351a8da27a5d3ffc21e75eace8fd26d3c558d6c0b774

SHA512
7305962407585422f7e1f76ae1945cdbf59080322f3507a8976f054ac79538210ded8ec2427c0a848300a1ff1cac55eed7bd647477bea3671fb248918e7af105

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

Filesize
116KB

MD5
ec178954ae0ae611ca51636b4ace99b7

SHA1
7f207432038e05c06ff082a7fd6451b7bbbb31fe

SHA256
4097800176004e544812351a8da27a5d3ffc21e75eace8fd26d3c558d6c0b774

SHA512
7305962407585422f7e1f76ae1945cdbf59080322f3507a8976f054ac79538210ded8ec2427c0a848300a1ff1cac55eed7bd647477bea3671fb248918e7af105

Download Submit
memory/208-139-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download
memory/4260-148-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download
memory/4260-146-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download
memory/4716-137-0x0000000077310000-0x00000000774B3000-memory.dmp

Filesize
1.6MB

Download
memory/4716-144-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/4716-145-0x0000000077310000-0x00000000774B3000-memory.dmp

Filesize
1.6MB

Download
memory/4716-138-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/4716-133-0x0000000000400000-0x00000000005F9000-memory.dmp

Filesize
2.0MB

Download
memory/5008-147-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download
memory/5008-149-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads