5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af

General

Target

5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af.exe
Size

1.7MB
MD5

2c891b115757bb6fb990843471d42545
SHA1

0b5ce46aff8eeb3512e6025b8946d2f07449d702
SHA256

5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af
SHA512

df6f0fcc9996e2affbced82dae95eb6c133da9fa5d21de63959f15307d4867cc55e6711a64ee7266900774533a2856a98105a5e319cf7dbffb57952ba3a10810

Score

9^/10

bootkit discovery evasion persistence

Malware Config

Signatures

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Executes dropped EXE 1 IoCs

Processes:

wYXJ1VWhi.exe

pid process

4944 wYXJ1VWhi.exe
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

wYXJ1VWhi.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion wYXJ1VWhi.exe

pid	process
4944	wYXJ1VWhi.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	wYXJ1VWhi.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

Processes:

5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

wYXJ1VWhi.exe

description	ioc	process
File opened (read-only)	\??\G:	wYXJ1VWhi.exe
File opened (read-only)	\??\P:	wYXJ1VWhi.exe
File opened (read-only)	\??\S:	wYXJ1VWhi.exe
File opened (read-only)	\??\T:	wYXJ1VWhi.exe
File opened (read-only)	\??\V:	wYXJ1VWhi.exe
File opened (read-only)	\??\Z:	wYXJ1VWhi.exe
File opened (read-only)	\??\U:	wYXJ1VWhi.exe
File opened (read-only)	\??\B:	wYXJ1VWhi.exe
File opened (read-only)	\??\E:	wYXJ1VWhi.exe
File opened (read-only)	\??\F:	wYXJ1VWhi.exe
File opened (read-only)	\??\J:	wYXJ1VWhi.exe
File opened (read-only)	\??\K:	wYXJ1VWhi.exe
File opened (read-only)	\??\L:	wYXJ1VWhi.exe
File opened (read-only)	\??\Q:	wYXJ1VWhi.exe
File opened (read-only)	\??\Y:	wYXJ1VWhi.exe
File opened (read-only)	\??\I:	wYXJ1VWhi.exe
File opened (read-only)	\??\O:	wYXJ1VWhi.exe
File opened (read-only)	\??\R:	wYXJ1VWhi.exe
File opened (read-only)	\??\W:	wYXJ1VWhi.exe
File opened (read-only)	\??\A:	wYXJ1VWhi.exe
File opened (read-only)	\??\H:	wYXJ1VWhi.exe
File opened (read-only)	\??\M:	wYXJ1VWhi.exe
File opened (read-only)	\??\N:	wYXJ1VWhi.exe
File opened (read-only)	\??\X:	wYXJ1VWhi.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1067

Processes:

wYXJ1VWhi.exe

description ioc process

File opened for modification \??\PhysicalDrive0 wYXJ1VWhi.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	\??\PhysicalDrive0	wYXJ1VWhi.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

Processes:

wYXJ1VWhi.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	wYXJ1VWhi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wYXJ1VWhi.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

wYXJ1VWhi.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS\	wYXJ1VWhi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardManufacturer	wYXJ1VWhi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardProduct	wYXJ1VWhi.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

wYXJ1VWhi.exe

pid process

4944 wYXJ1VWhi.exe
4944 wYXJ1VWhi.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

wYXJ1VWhi.exe

pid process

4944 wYXJ1VWhi.exe

pid	process
4944	wYXJ1VWhi.exe
4944	wYXJ1VWhi.exe

pid	process
4944	wYXJ1VWhi.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af.exe

description	pid	process	target process
PID 2744 wrote to memory of 4944	2744	5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af.exe	wYXJ1VWhi.exe
PID 2744 wrote to memory of 4944	2744	5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af.exe	wYXJ1VWhi.exe
PID 2744 wrote to memory of 4944	2744	5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af.exe	wYXJ1VWhi.exe

C:\Users\Admin\AppData\Local\Temp\5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af.exe
"C:\Users\Admin\AppData\Local\Temp\5eb50b3c430267f497953288cebe4e346b35dde4dfbbd2da78c9e671f4c1a1af.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Users\Admin\AppData\Local\Temp\MyDiskPro\wYXJ1VWhi.exe
  "C:\Users\Admin\AppData\Local\Temp\MyDiskPro\wYXJ1VWhi.exe" TEw9aHR0cDovL21maWxlLnNpdGUvZC8qTk49Zm9yemEtaG9yaXpvbi00LnRvcnJlbnQqRkY9MTI3MzcqQVBJPSpTSVpFPTQ0NzMyNSpNVT1odHRwOi8vbWRpcy5mdW4vbC8qU1U9TXlEaXNrLnBybyo=
  2⤵
  - Executes dropped EXE
  - Checks BIOS information in registry
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:4944

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

6

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\MyDiskPro\wYXJ1VWhi.exe

Filesize
1.4MB

MD5
bbf36e1e51d88a15446ff83fb500f216

SHA1
67780b3d4172ae3cbd32a73dc3df986e1ec77252

SHA256
0cd2ff28d4c721e142355ada0a591610033befddc4ef3a9a50592097a6e14e09

SHA512
06d4eef70f23e1c53ad8ec12a0cfcc04b68bff61c7687ac9478e67fc5a91be6b7ccc0e309786f4882c8bc4972e3680e412c4a743c22e63193d49b37ce877a46c

Download Submit
memory/2744-132-0x0000000000400000-0x0000000000684000-memory.dmp

Filesize
2.5MB

Download
memory/2744-133-0x00000000023D0000-0x00000000023D3000-memory.dmp

Filesize
12KB

Download
memory/4944-130-0x0000000000000000-mapping.dmp

Download
memory/4944-134-0x0000000000AD0000-0x0000000000AD3000-memory.dmp

Filesize
12KB

Download
memory/4944-135-0x0000000000400000-0x000000000092C000-memory.dmp

Filesize
5.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads