557b41277987ad78b34442dd286d4ab865334599f2311f98c120befbda80ad99

General

Target

f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe
Size

285KB
MD5

4d71e43a37b35ae59d5213659988d089
SHA1

6ead57c5ca1682701c15ce73cf5a7aaf22d0d49e
SHA256

f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58
SHA512

abcbf991a9869d11babfc70e85960c441bc93c97a009aed7a117ccaabcb16a2934e65b1a2c83b276319c321a1fc714445025eae0d16d421e41093395f9d3ae01

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

WDcavier.exe

pid process

3024 WDcavier.exe

pid	process
3024	WDcavier.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:

f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\International\Geo\Nation	f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe

Deletes itself 1 IoCs

Processes:

WDcavier.exe

pid process

3024 WDcavier.exe

pid	process
3024	WDcavier.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

WDcavier.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\WestenDigitals = "C:\\Users\\Admin\\AppData\\Local\\WDcavier.exe"	WDcavier.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	WDcavier.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe

description	pid	process	target process
PID 644 wrote to memory of 3024	644	f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe	WDcavier.exe
PID 644 wrote to memory of 3024	644	f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe	WDcavier.exe
PID 644 wrote to memory of 3024	644	f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe	WDcavier.exe

C:\Users\Admin\AppData\Local\Temp\f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe
"C:\Users\Admin\AppData\Local\Temp\f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:644

C:\Users\Admin\AppData\Local\WDcavier.exe
"C:\Users\Admin\AppData\Local\WDcavier.exe" \melt "C:\Users\Admin\AppData\Local\Temp\f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58.exe"
2⤵
- Executes dropped EXE
- Deletes itself
- Adds Run key to start application
PID:3024

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

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\WDcavier.exe
MD5
4d71e43a37b35ae59d5213659988d089

SHA1
6ead57c5ca1682701c15ce73cf5a7aaf22d0d49e

SHA256
f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58

SHA512
abcbf991a9869d11babfc70e85960c441bc93c97a009aed7a117ccaabcb16a2934e65b1a2c83b276319c321a1fc714445025eae0d16d421e41093395f9d3ae01

Download Submit
C:\Users\Admin\AppData\Local\WDcavier.exe
MD5
4d71e43a37b35ae59d5213659988d089

SHA1
6ead57c5ca1682701c15ce73cf5a7aaf22d0d49e

SHA256
f2d3817ae698cef63903265674ccdceadacde415396b4880196915f9f4d02b58

SHA512
abcbf991a9869d11babfc70e85960c441bc93c97a009aed7a117ccaabcb16a2934e65b1a2c83b276319c321a1fc714445025eae0d16d421e41093395f9d3ae01

Download Submit
memory/3024-114-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads