Overview

overview

10

Static

static

10

2024-12-13...op.exe

windows7-x64

10

2024-12-13...op.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-12-2024 06:29

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General

  • Target

    2024-12-13_0f464fe6fb33396c435b797d16d4073c_makop.exe

  • Size

    49KB

  • MD5

    0f464fe6fb33396c435b797d16d4073c

  • SHA1

    67dceb30cca1dfdd136f439fb8c3813035549c8b

  • SHA256

    245d77ec0901975b12ac866614ffb4259e1d01d8284a6e9d1424e91c10e608fa

  • SHA512

    59826f5113848dc46f3228c3a17777840bb845783a1dfa7931ad710e7a72a930b7e14bd5c1ee6a0dd9d6c219ba4fe1427d0f7e45fb1d68aedd967a0b58f2e0f0

  • SSDEEP

    768:7AxPvDRD1ayCt3LSUS6QCA3KlRDsKeqRO8785F7HyFj6cBCE2fje0YADWQsMO30/:7CD183dAalnudHyFj6cBSfdYOOBYxYU

Score
10/10
defense_evasiondiscoveryexecutionimpactransomware

Malware Config

Extracted

Path

C:\Program Files\Common Files\microsoft shared\ClickToRun\+README-WARNING+.txt

Ransom Note
YOUR FILES ARE ENCRYPTED Your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. To be sure we have the decryptor and it works you can send an email: [email protected] and decrypt one file for free. Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets,sql. etc.) Do you really want to restore your files? Write to email: [email protected] Your personal ID is indicated in the names of the files and in the end of this message, before writing a message by email - indicate the name of the ID indicated in the files IN THE SUBJECT OF THE EMAIL Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam. YOUR ID: 3E384DDC

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (3363) 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
  • Drops file in System32 directory 6 IoCs
  • Drops file in Program Files directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Interacts with shadow copies 3 TTPs 1 IoCs

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

    ransomware
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 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\2024-12-13_0f464fe6fb33396c435b797d16d4073c_makop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-13_0f464fe6fb33396c435b797d16d4073c_makop.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3284
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:4192
      • C:\Windows\system32\wbadmin.exe
        wbadmin delete catalog -quiet
        3⤵
        • Deletes backup catalog
        PID:3648
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1528
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:960
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4056
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:3320
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2796
    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
      1⤵
      • Drops file in System32 directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:816

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads

    • C:\Program Files\Common Files\microsoft shared\ClickToRun\+README-WARNING+.txt
      Filesize

      1KB

      MD5

      6ea3caeb52db5bc2fa2f8ba9457e9a1c

      SHA1

      539129906c1319ea3c2181b430a9d979efe86201

      SHA256

      4d797a63a550bf9d9b72d1bb8968b67574ed46c51b81b320c91a50eca85ea28b

      SHA512

      6159749d78ddf50e6c83f3939ba6e4fec202e75adffa721f7680bc5de47d2ecfd71a531e04ef73dd6c57e9a3cbc57821acd27ab4dc14e232335bb563a9adc5b3

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