Overview

overview

10

Static

static

3

youcant.exe

windows10-2004-x64

10

Resubmissions

22-05-2023 08:32

230522-kfahcahg8v 10

27-04-2023 01:39

230427-b2x14ada67 10

Analysis

  • max time kernel
    175s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-04-2023 01:39

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General

  • Target

    youcant.exe

  • Size

    2.0MB

  • MD5

    22f2d4f9682ddadacf4fd6ead172e125

  • SHA1

    e9e6775d034c8c86218b95fe5de1455609aa5dc1

  • SHA256

    9004e4161cc50ac62f76988aefe4504df4fd636d12708630e825e0c7b74cd12d

  • SHA512

    f821d6d89807a698e67eef75943d4e590be924bce3a1fbdaa7507641bce222c014e721f96a8a1083dff3c7d9e4445f62420949f5e0b3b9a97e2721415161ba7b

  • SSDEEP

    49152:Ye0jbW6GNjiSZTKAzkltDhTCcVX8saTtWycoJkqXfd+/9AH9783FGpv8EAQkcZ:YANuSZTKA0t9FFPEVJkqXf0Fi80kEXkc

Score
10/10
jigsawpersistenceransomware

Malware Config

Signatures

  • Jigsaw Ransomware

    Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.

    ransomwarejigsaw
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 32 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\youcant.exe
    "C:\Users\Admin\AppData\Local\Temp\youcant.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1176
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\youcant.exe
      2⤵
      • Executes dropped EXE
      PID:3488
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:548
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2196

    Network

    MITRE ATT&CK Matrix ATT&CK 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

    2
    T1012

    System Information Discovery

    3
    T1082

    Peripheral Device Discovery

    1
    T1120

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      Filesize

      2.0MB

      MD5

      22f2d4f9682ddadacf4fd6ead172e125

      SHA1

      e9e6775d034c8c86218b95fe5de1455609aa5dc1

      SHA256

      9004e4161cc50ac62f76988aefe4504df4fd636d12708630e825e0c7b74cd12d

      SHA512

      f821d6d89807a698e67eef75943d4e590be924bce3a1fbdaa7507641bce222c014e721f96a8a1083dff3c7d9e4445f62420949f5e0b3b9a97e2721415161ba7b

      Download Submit
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      Filesize

      2.0MB

      MD5

      22f2d4f9682ddadacf4fd6ead172e125

      SHA1

      e9e6775d034c8c86218b95fe5de1455609aa5dc1

      SHA256

      9004e4161cc50ac62f76988aefe4504df4fd636d12708630e825e0c7b74cd12d

      SHA512

      f821d6d89807a698e67eef75943d4e590be924bce3a1fbdaa7507641bce222c014e721f96a8a1083dff3c7d9e4445f62420949f5e0b3b9a97e2721415161ba7b

      Download Submit
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      Filesize

      2.0MB

      MD5

      22f2d4f9682ddadacf4fd6ead172e125

      SHA1

      e9e6775d034c8c86218b95fe5de1455609aa5dc1

      SHA256

      9004e4161cc50ac62f76988aefe4504df4fd636d12708630e825e0c7b74cd12d

      SHA512

      f821d6d89807a698e67eef75943d4e590be924bce3a1fbdaa7507641bce222c014e721f96a8a1083dff3c7d9e4445f62420949f5e0b3b9a97e2721415161ba7b

      Download Submit
    • C:\Users\Admin\AppData\Roaming\Frfx\firefox.exe
      Filesize

      2.0MB

      MD5

      22f2d4f9682ddadacf4fd6ead172e125

      SHA1

      e9e6775d034c8c86218b95fe5de1455609aa5dc1

      SHA256

      9004e4161cc50ac62f76988aefe4504df4fd636d12708630e825e0c7b74cd12d

      SHA512

      f821d6d89807a698e67eef75943d4e590be924bce3a1fbdaa7507641bce222c014e721f96a8a1083dff3c7d9e4445f62420949f5e0b3b9a97e2721415161ba7b

      Download Submit
    • memory/1176-133-0x000001A75CB10000-0x000001A75CD12000-memory.dmp
      Filesize

      2.0MB

      Download
    • memory/2196-150-0x0000016D3A560000-0x0000016D3A561000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2196-149-0x0000016D3A560000-0x0000016D3A561000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2196-156-0x0000016D3A560000-0x0000016D3A561000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2196-155-0x0000016D3A560000-0x0000016D3A561000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2196-159-0x0000016D3A560000-0x0000016D3A561000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2196-158-0x0000016D3A560000-0x0000016D3A561000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2196-157-0x0000016D3A560000-0x0000016D3A561000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2196-154-0x0000016D3A560000-0x0000016D3A561000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2196-160-0x0000016D3A560000-0x0000016D3A561000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2196-148-0x0000016D3A560000-0x0000016D3A561000-memory.dmp
      Filesize

      4KB

      Download