c0e391cc147b45c007a23d34db1f5d92804f4a7c6e25a197c17c22e0baa4290c

Analysis

max time kernel
153s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2022, 05:59

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General

Target

Trojan-Ransom.Win32.Blocker.exe
Size

163KB
MD5

4bdfc297faf9f3d94476f8fe02b68de6
SHA1

e23a6b2de6c5a897d2ed2d2ada9931086231b255
SHA256

c0e391cc147b45c007a23d34db1f5d92804f4a7c6e25a197c17c22e0baa4290c
SHA512

570712ef635f316d90f13a60bc2cac618a2b361fab389457d49472ace3dfc0257360a066e648cf8b635934b5c652ea4f944be9b7168a9f632d84b2138285a722
SSDEEP

3072:UC4O5okyivqKR1TI3UN/vkhwYMBD0+DfYqA4SFwP79qVla5AEOjd07QlS:UhvJKR1UFuBFLYqhSFc901dBlS

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3388	drv73825.exe
3828	drv73825.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	Trojan-Ransom.Win32.Blocker.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\{12416-2365-1385-346865} = "C:\\Users\\Admin\\AppData\\Roaming\\drv73825.exe"	Trojan-Ransom.Win32.Blocker.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	Trojan-Ransom.Win32.Blocker.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1376 set thread context of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 3388 set thread context of 3828	3388	drv73825.exe	83

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Trojan-Ransom.Win32.Blocker.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 1376 wrote to memory of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 1376 wrote to memory of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 1376 wrote to memory of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 1376 wrote to memory of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 1376 wrote to memory of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 1376 wrote to memory of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 1376 wrote to memory of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 1376 wrote to memory of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 1376 wrote to memory of 3268	1376	Trojan-Ransom.Win32.Blocker.exe	81
PID 3268 wrote to memory of 3388	3268	Trojan-Ransom.Win32.Blocker.exe	82
PID 3268 wrote to memory of 3388	3268	Trojan-Ransom.Win32.Blocker.exe	82
PID 3268 wrote to memory of 3388	3268	Trojan-Ransom.Win32.Blocker.exe	82
PID 3388 wrote to memory of 3828	3388	drv73825.exe	83
PID 3388 wrote to memory of 3828	3388	drv73825.exe	83
PID 3388 wrote to memory of 3828	3388	drv73825.exe	83
PID 3388 wrote to memory of 3828	3388	drv73825.exe	83
PID 3388 wrote to memory of 3828	3388	drv73825.exe	83
PID 3388 wrote to memory of 3828	3388	drv73825.exe	83
PID 3388 wrote to memory of 3828	3388	drv73825.exe	83
PID 3388 wrote to memory of 3828	3388	drv73825.exe	83
PID 3388 wrote to memory of 3828	3388	drv73825.exe	83
PID 3388 wrote to memory of 3828	3388	drv73825.exe	83
PID 3828 wrote to memory of 4316	3828	drv73825.exe	84
PID 3828 wrote to memory of 4316	3828	drv73825.exe	84
PID 3828 wrote to memory of 4316	3828	drv73825.exe	84
PID 3828 wrote to memory of 4316	3828	drv73825.exe	84
PID 3828 wrote to memory of 4316	3828	drv73825.exe	84

C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3268
- - C:\Users\Admin\AppData\Roaming\drv73825.exe
    "C:\Users\Admin\AppData\Roaming\drv73825.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3388
  - - C:\Users\Admin\AppData\Roaming\drv73825.exe
      "C:\Users\Admin\AppData\Roaming\drv73825.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3828
    - - C:\WINDOWS\SysWOW64\explorer.exe
        
        C:\WINDOWS\SysWOW64\explorer.exe
        5⤵
        
        PID:4316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\drv73825.exe

Filesize
163KB

MD5
4bdfc297faf9f3d94476f8fe02b68de6

SHA1
e23a6b2de6c5a897d2ed2d2ada9931086231b255

SHA256
c0e391cc147b45c007a23d34db1f5d92804f4a7c6e25a197c17c22e0baa4290c

SHA512
570712ef635f316d90f13a60bc2cac618a2b361fab389457d49472ace3dfc0257360a066e648cf8b635934b5c652ea4f944be9b7168a9f632d84b2138285a722

Download Submit
C:\Users\Admin\AppData\Roaming\drv73825.exe

Filesize
163KB

MD5
4bdfc297faf9f3d94476f8fe02b68de6

SHA1
e23a6b2de6c5a897d2ed2d2ada9931086231b255

SHA256
c0e391cc147b45c007a23d34db1f5d92804f4a7c6e25a197c17c22e0baa4290c

SHA512
570712ef635f316d90f13a60bc2cac618a2b361fab389457d49472ace3dfc0257360a066e648cf8b635934b5c652ea4f944be9b7168a9f632d84b2138285a722

Download Submit
C:\Users\Admin\AppData\Roaming\drv73825.exe

Filesize
163KB

MD5
4bdfc297faf9f3d94476f8fe02b68de6

SHA1
e23a6b2de6c5a897d2ed2d2ada9931086231b255

SHA256
c0e391cc147b45c007a23d34db1f5d92804f4a7c6e25a197c17c22e0baa4290c

SHA512
570712ef635f316d90f13a60bc2cac618a2b361fab389457d49472ace3dfc0257360a066e648cf8b635934b5c652ea4f944be9b7168a9f632d84b2138285a722

Download Submit
memory/1376-134-0x0000000010000000-0x000000001002D000-memory.dmp

Filesize
180KB

Download
memory/3268-136-0x0000000010000000-0x000000001002D000-memory.dmp

Filesize
180KB

Download
memory/3268-137-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3268-135-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3268-141-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3268-133-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3828-144-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3828-145-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3828-147-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3828-148-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download