Overview

overview

10

Static

static

3

4c0fec496a...76.exe

windows7-x64

10

4c0fec496a...76.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    593s
  • max time network
    602s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/06/2024, 12:59

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General

  • Target

    4c0fec496abf0c29ef8358d913781b9d0c00e3e53487b72cfbf42753f0aa5176.exe

  • Size

    700KB

  • MD5

    4f6dd08aeb0beca7061a2121e2f89f32

  • SHA1

    370de5096d1b9e9ccc2e18e6145dc8170e454d2e

  • SHA256

    4c0fec496abf0c29ef8358d913781b9d0c00e3e53487b72cfbf42753f0aa5176

  • SHA512

    47a73721cdab4f15ef65172bd110f82cc9e887e2d1f333e09b11ddf1213215bcc6f8c04144a8bc7ead53f66572812f5017157dc783df275680ce45a793949c1f

  • SSDEEP

    6144:Er+LuDj/chQaT1ptXl7ml2JcT0RQTPA7b/OQi5J:6+iDjkhQ8NRJcToQTui

Score
10/10
defense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\3D Objects\instruction.txt

Ransom Note
---------------------------------------------------------- YOUR FILES HAVE BEEN ENCRYPTED BY RAPAX RANSOMWARE!!! ---------------------------------------------------------- All your important files have been encrypted and are no longer accessible. The only way to recover your data is by obtaining the decryption key. TO GET THE DECRYPTION KEY, YOU MUST PAY A RANSOM OF 5,000 DOLLARS IN BITCOIN. ---------------------------------------------------------- PAYMENT INSTRUCTION: ---------------------------------------------------------- 1. Purchase Bitcoin in Binance, BitPay, Exodus or Trust Wallet 2. Send the exact amount of 5,000 dollars in Bitcoin to the following address: Bitcoin Address: bc1qdvk0zgyswnwcck55kleepjr8qcr7yhw52sf4y4 3. After making the payment, send the transaction details to the following email address: [email protected] 4. Once the payment confirmed, you will receive the decryption key through email to restore access to your files. ---------------------------------------------------------- IMPORTANT: ---------------------------------------------------------- - Do not rename or modify the encrypted files, this will cause irreversible damage and prevent decryption. - Trying to delete the ransomware will result in permanent data loss. - If payment is not made within 72 hours, the decryption key will be permanently deleted and you will not be able to recover your files. ACT NOW TO RECOVER YOUR DATA!!! - Rapax Ransomware

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Renames multiple (195) 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
  • 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 3 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 48 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\4c0fec496abf0c29ef8358d913781b9d0c00e3e53487b72cfbf42753f0aa5176.exe
    "C:\Users\Admin\AppData\Local\Temp\4c0fec496abf0c29ef8358d913781b9d0c00e3e53487b72cfbf42753f0aa5176.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4076
    • 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:4268
      • 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:1136
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:4796
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2184
      • 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:4240
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4584
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3984
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4636
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:628
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\instruction.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:5080
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2424
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3556
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:4940
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:368
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4292 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3136
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3816 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:4440

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\3D Objects\instruction.txt
          Filesize

          1KB

          MD5

          f13ded4fcd58941a41ae202bdb335caa

          SHA1

          f49bf43765d44ab7925a26e79df4b854c46404c0

          SHA256

          a8ee4ee9f1144077af252f2cfec7cdb048d00988402fb0a1c35629a9a52b8980

          SHA512

          cbb1bd405890509651035ba924cdc8ff0c17420e35cae23760ad6ed4e201d64c1bfa8360d0312dfa948a81a4ac7f43aa779d1f78d6e5d2e4c7c3850447a0b09d

          Download Submit

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\4c0fec496abf0c29ef8358d913781b9d0c00e3e53487b72cfbf42753f0aa5176.exe.log
          Filesize

          1KB

          MD5

          baf55b95da4a601229647f25dad12878

          SHA1

          abc16954ebfd213733c4493fc1910164d825cac8

          SHA256

          ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

          SHA512

          24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

          Download Submit

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

          700KB

          MD5

          4f6dd08aeb0beca7061a2121e2f89f32

          SHA1

          370de5096d1b9e9ccc2e18e6145dc8170e454d2e

          SHA256

          4c0fec496abf0c29ef8358d913781b9d0c00e3e53487b72cfbf42753f0aa5176

          SHA512

          47a73721cdab4f15ef65172bd110f82cc9e887e2d1f333e09b11ddf1213215bcc6f8c04144a8bc7ead53f66572812f5017157dc783df275680ce45a793949c1f

          Download Submit

        • C:\Users\Admin\Desktop\JoinWrite.vb
          Filesize

          1B

          MD5

          d1457b72c3fb323a2671125aef3eab5d

          SHA1

          5bab61eb53176449e25c2c82f172b82cb13ffb9d

          SHA256

          8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

          SHA512

          ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

          Download Submit

        • memory/4076-0-0x00007FFCA3103000-0x00007FFCA3105000-memory.dmp

          Filesize

          8KB

          Download

        • memory/4076-1-0x0000000000A10000-0x0000000000AC4000-memory.dmp

          Filesize

          720KB

          Download

        • memory/4076-2-0x00007FFCA3100000-0x00007FFCA3BC1000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/4076-16-0x00007FFCA3100000-0x00007FFCA3BC1000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/4268-15-0x00007FFCA3100000-0x00007FFCA3BC1000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/4268-1200-0x00007FFCA3100000-0x00007FFCA3BC1000-memory.dmp

          Filesize

          10.8MB

          Download