Overview

overview

10

Static

static

10

84a12b237c...34.exe

windows7-x64

9

84a12b237c...34.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    176s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-02-2024 05:40

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General

  • Target

    84a12b237c8acc8fc9008da6c48f9a2dffd9feaa2f283968d420250235e2fb34.exe

  • Size

    99KB

  • MD5

    bea647bc314248d390f14df1aad251b0

  • SHA1

    27697991ccd3a76a38ab7ae2420162627ea2a69b

  • SHA256

    ac1aa0426969aa4f3c3303ccbdfba83047cf68e01401e04e8028006a2ddb6aab

  • SHA512

    c491419e885bcac5b75456bab87ed4fbb2ad02802b0d314dda7a725c236638ad2b223a80b6856ec1e8e09360bf25b99141891c56211abbb7c1667dacb4361a27

  • SSDEEP

    1536:BIj43TYRX0Y9iFAK0E+4LAyKfPKHDysmOIzSw63BtuwVZY9n:QKTYRX0M/BCAyKXmczSw63zq

Score
9/10
ransomwareupx

Malware Config

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Detects command variations typically used by ransomware 14 IoCs
  • Detects executables containing many references to VEEAM. Observed in ransomware 14 IoCs
  • Detects executables referencing many IR and analysis tools 14 IoCs
  • Renames multiple (232) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • UPX dump on OEP (original entry point) 15 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • UPX packed file 15 IoCs

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

    upx
  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Modifies boot configuration data using bcdedit 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 38 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\84a12b237c8acc8fc9008da6c48f9a2dffd9feaa2f283968d420250235e2fb34.exe
    "C:\Users\Admin\AppData\Local\Temp\84a12b237c8acc8fc9008da6c48f9a2dffd9feaa2f283968d420250235e2fb34.exe"
    1⤵
    • Checks computer location settings
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2988
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit / set{ default } bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3508
      • C:\Windows\system32\bcdedit.exe
        bcdedit / set{ default } bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1524
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit / set{ default } recoveryenabled No
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4688
      • C:\Windows\system32\bcdedit.exe
        bcdedit / set{ default } recoveryenabled No
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:4864
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c wmic SHADOWCOPY DELETE
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1508
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic SHADOWCOPY DELETE
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3692
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3556
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:3380
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:572
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4672
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
      1⤵
        PID:3624

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\ProgramData\Package Cache\WhatHappened.txt
        Filesize

        1KB

        MD5

        b05e32b7e78e82f01f6f0c7d1411ee67

        SHA1

        2e1dda46f8561858b378d19a24b839062f794274

        SHA256

        f058bc2a88431119f286f2708751f25449dc1d58e1c87de3bb38aff764c814a8

        SHA512

        6cb7c842a48b9f982ac87280ded95e206e2b9055f9f51ea84f6060470a61a35decbb688650c0d6b7c318df018078af0c0a1afe0ce65db1b460d75ae7800e2d3c

        Download Submit

      • memory/2988-153-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-164-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-27-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-60-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-91-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-133-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-23-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-0-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-145-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-193-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-194-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-216-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-384-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-406-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download

      • memory/2988-560-0x00007FF606C40000-0x00007FF606C82000-memory.dmp

        Filesize

        264KB

        Download