ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05

General

Target

ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe
Size

36KB
MD5

a7f7d1ecef960e3e86ad41bb8d3f7ef4
SHA1

b7ae57b6011d2fddeeb93b242eea34f9883856e9
SHA256

ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05
SHA512

2d81e51f281a94667de64a84d06b8e1d656c9bb21e94d456b88b28a5ce898917f0ecaf81c1efc2c46f35765a57e58a9d60ec0d885780ffcf8f069372d6342187
SSDEEP

768:4noSEjp9Plchfr6TUqnbcuyD7UYK4pavvvZeee26666HEEExTtqqqqBttttp:4oSEZWTUUqnouy8YXEvvvZeee5Lttttp

Score

7^/10

defense_evasion discovery upx

Malware Config

Signatures

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe

Executes dropped EXE 1 IoCs

pid	Process
408	vgkhost.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3940-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/files/0x000d000000023ba1-3.dat	upx
behavioral2/memory/3940-5-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/408-6-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/408-12-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/408-15-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/408-18-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\vgkhost.exe	ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe
File opened for modification	C:\Windows\Debug\vgkhost.exe	ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe

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

System Information Discovery
T1082

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	ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vgkhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 2 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\0	vgkhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	vgkhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3940	ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 900	3940	ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe	87
PID 3940 wrote to memory of 900	3940	ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe	87
PID 3940 wrote to memory of 900	3940	ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe	87

C:\Users\Admin\AppData\Local\Temp\ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe
"C:\Users\Admin\AppData\Local\Temp\ff51cdf2c11f54f66b6ae92c3adcd299bf197d3cf923f280d41f553a66adbb05.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\FF51CD~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:900

C:\Windows\Debug\vgkhost.exe
C:\Windows\Debug\vgkhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\debug\vgkhost.exe

Filesize
36KB

MD5
09f2c00c0fef568b39d28b0808dc3be1

SHA1
93ac11300dfe51e82953901e8ec778c87e6c62a1

SHA256
a328fbda7904a519fee5054ce6c070efbb9186db3b72510926752c251674dae8

SHA512
f8f091d16dbdef4fa299e1b9ef6f8867485128ca4d63ba8b9dfbaa1674460d2984b0a5e42de6e3e681293ca9cad40e45a2929f6eaa9dfd1a9fdd9b74e6969917

Download Submit
memory/408-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/408-12-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/408-15-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/408-18-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3940-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3940-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads