Overview

overview

10

Static

static

10

618a69a2fb...d9.exe

windows7-x64

9

618a69a2fb...d9.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    131s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/01/2024, 23:26

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General

  • Target

    618a69a2fbb50ad32fa37504fb3bf3c78ebf35dbeab4df1f6c9278eb105717d9.exe

  • Size

    99KB

  • MD5

    5c90e11df98be1e045b7a2cc6825779d

  • SHA1

    7ba7a42f35dbb4fc0d3f8af29fb31fc8048692e1

  • SHA256

    fc8761e18a9c2e5b91d81b3a44d23bfa56737ea71756b88db6aa4c4eb7d2b4aa

  • SHA512

    83934a5ee18cd6ca62acdecccb12b12f28bb2441553f59c960a07171bff87352f09a34098caf5590decb4d204752f49266c23286d110fe8fec8c09f45c86b812

  • SSDEEP

    1536:4Ij4aaWd0ni8l4ZOtIsdm+s2sQ4yFVP8eflx69g6KWmhPK39Ijs4248YaaFQ2nDM:Nxv8QOrmj211/1flQSvJhST48

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 10 IoCs
  • Detects executables containing many references to VEEAM. Observed in ransomware 10 IoCs
  • Detects executables referencing many IR and analysis tools 10 IoCs
  • Renames multiple (648) 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) 11 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • UPX packed file 11 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 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 2 IoCs

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

    ransomware
  • Modifies Control Panel 2 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 32 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\618a69a2fbb50ad32fa37504fb3bf3c78ebf35dbeab4df1f6c9278eb105717d9.exe
    "C:\Users\Admin\AppData\Local\Temp\618a69a2fbb50ad32fa37504fb3bf3c78ebf35dbeab4df1f6c9278eb105717d9.exe"
    1⤵
    • Checks computer location settings
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2580
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5104
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1916
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c wmic SHADOWCOPY DELETE
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4248
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic SHADOWCOPY DELETE
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2900
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit / set{ default } bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2384
      • C:\Windows\system32\bcdedit.exe
        bcdedit / set{ default } bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:4920
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit / set{ default } recoveryenabled No
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3544
      • C:\Windows\system32\bcdedit.exe
        bcdedit / set{ default } recoveryenabled No
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:4168
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2096
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:4272
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c wmic SHADOWCOPY DELETE
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2956
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic SHADOWCOPY DELETE
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1736
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit / set{ default } recoveryenabled No
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2860
      • C:\Windows\system32\bcdedit.exe
        bcdedit / set{ default } recoveryenabled No
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1652
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit / set{ default } bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1268
      • C:\Windows\system32\bcdedit.exe
        bcdedit / set{ default } bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:4004
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3408
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
    1⤵
      PID:2064

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\WhatHappened.txt
      Filesize

      1KB

      MD5

      b05e32b7e78e82f01f6f0c7d1411ee67

      SHA1

      2e1dda46f8561858b378d19a24b839062f794274

      SHA256

      f058bc2a88431119f286f2708751f25449dc1d58e1c87de3bb38aff764c814a8

      SHA512

      6cb7c842a48b9f982ac87280ded95e206e2b9055f9f51ea84f6060470a61a35decbb688650c0d6b7c318df018078af0c0a1afe0ce65db1b460d75ae7800e2d3c

      Download Submit

    • memory/2580-0-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download

    • memory/2580-103-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download

    • memory/2580-499-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download

    • memory/2580-738-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download

    • memory/2580-854-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download

    • memory/2580-855-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download

    • memory/2580-911-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download

    • memory/2580-1210-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download

    • memory/2580-1330-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download

    • memory/2580-1419-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download

    • memory/2580-1516-0x00007FF659D70000-0x00007FF659DB2000-memory.dmp

      Filesize

      264KB

      Download