Overview

overview

9

Static

static

7

2f9967e58f...46.exe

windows7-x64

9

2f9967e58f...46.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    93s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/01/2024, 18:25

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General

  • Target

    2f9967e58f4c436c102a7de4c8e5b5aef61db1ddc0c5df601dc70b25b7416b46.exe

  • Size

    956KB

  • MD5

    57f8fbce24a06fa399c8690a6703a850

  • SHA1

    248bf857d4739f60fbb0f4e9dbd855f3cbf2d09f

  • SHA256

    2f9967e58f4c436c102a7de4c8e5b5aef61db1ddc0c5df601dc70b25b7416b46

  • SHA512

    048228574eb2d74a1f499281d44dd3631e395840db58c37a154fefdae00a759c01502d99fd23619c26d17bcff39e95dc8a21f3133707e49dcaab53057a048c33

  • SSDEEP

    24576:+9EZn4OkTe8Rfzvbi+1WmYL/hfqDTJI1enwRn+9:eEZbk68RffEhmJII

Score
9/10
evasionpersistenceransomwarespywarestealer

Malware Config

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Renames multiple (153) files with added filename extension

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

    ransomware
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Disables Task Manager via registry modification
    evasion
  • .NET Reactor proctector 2 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 64 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).

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • 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\2f9967e58f4c436c102a7de4c8e5b5aef61db1ddc0c5df601dc70b25b7416b46.exe
    "C:\Users\Admin\AppData\Local\Temp\2f9967e58f4c436c102a7de4c8e5b5aef61db1ddc0c5df601dc70b25b7416b46.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3628
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1604
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4000
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:1876
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1168
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3472
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3844
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3944
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2488
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:4592
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\READ_ME.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:2224
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4940
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3100
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:3756
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3768
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc
      1⤵
        PID:3844

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2f9967e58f4c436c102a7de4c8e5b5aef61db1ddc0c5df601dc70b25b7416b46.exe.log
        Filesize

        1KB

        MD5

        baf55b95da4a601229647f25dad12878

        SHA1

        abc16954ebfd213733c4493fc1910164d825cac8

        SHA256

        ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

        SHA512

        24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

        Download Submit

      • C:\Users\Admin\AppData\Roaming\svchost.exe
        Filesize

        956KB

        MD5

        57f8fbce24a06fa399c8690a6703a850

        SHA1

        248bf857d4739f60fbb0f4e9dbd855f3cbf2d09f

        SHA256

        2f9967e58f4c436c102a7de4c8e5b5aef61db1ddc0c5df601dc70b25b7416b46

        SHA512

        048228574eb2d74a1f499281d44dd3631e395840db58c37a154fefdae00a759c01502d99fd23619c26d17bcff39e95dc8a21f3133707e49dcaab53057a048c33

        Download Submit

      • C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Fax Recipient.lnk
        Filesize

        1B

        MD5

        d1457b72c3fb323a2671125aef3eab5d

        SHA1

        5bab61eb53176449e25c2c82f172b82cb13ffb9d

        SHA256

        8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

        SHA512

        ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

        Download Submit

      • C:\Users\Default\READ_ME.txt
        Filesize

        1KB

        MD5

        add828d44008c3d036f0a66a82d1a1d7

        SHA1

        bb21765e1dde324ffa71bc2dccbb8c1283b4e988

        SHA256

        668e038b6bacf1a52e83a73d2b968e1b67b5c597d3ec57a84c8f5ce3882abc81

        SHA512

        00f15f128e2ab397dc260704edafe50a1aa012fe4da2939f006f082cdac7df8692fe4f249cba6ccac3fbfdcee5e246c5f7aacd0f65f91e0b198d67c24054deab

        Download Submit

      • memory/1604-16-0x00007FFCB7800000-0x00007FFCB82C1000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/1604-1069-0x00007FFCB7800000-0x00007FFCB82C1000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/3628-0-0x00000000008E0000-0x00000000009D4000-memory.dmp

        Filesize

        976KB

        Download

      • memory/3628-1-0x00007FFCB7800000-0x00007FFCB82C1000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/3628-2-0x000000001B520000-0x000000001B530000-memory.dmp

        Filesize

        64KB

        Download

      • memory/3628-15-0x00007FFCB7800000-0x00007FFCB82C1000-memory.dmp

        Filesize

        10.8MB

        Download