Overview

overview

10

Static

static

10

2023-12-12...ta.exe

windows7-x64

10

2023-12-12...ta.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2023 05:08

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General

  • Target

    2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe

  • Size

    82KB

  • MD5

    f346aad7f24a9ab3442b802e0ef42cf3

  • SHA1

    9b13e49b407a0fd3b558881e389458871180219b

  • SHA256

    13eb85d3fe56e7eaf0d63825f4f75bffe768fb6abf8c0bb8a7a4efe7452e72cb

  • SHA512

    74559ac477f7dbd050b8778ca09ef6c58db3fd680b994069ed3413b68b45a542e109daad0abe8c16bf35ba35e61f9fa49387b5ab483c92fad2660f00ecfeb49e

  • SSDEEP

    1536:JxqjQ+P04wsmJCOXjlS1FKnDtkuImg61iF:sr85COXBS1FqtkuImgmiF

Score
10/10
makopneshtapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted. The file structure was not damaged, we did everything possible so that this could not happen. .2. Q: How to recover files? A: If you wish to decrypt your files you will need to pay us. .3. Q: What about guarantees? A: Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests. To check the ability of returning files, you can send to us any 2 files with SIMPLE extensions(jpg,xls,doc, etc... not databases!) and low sizes(max 1 mb), we will decrypt them and send back to you. That is our guarantee. .4. Q: How to contact with you? A: You can write us to our mailboxes: [email protected] or [email protected] .5. Q: How will the decryption process proceed after payment? A: After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files. .6. Q: If I don�t want to pay bad people like you? A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause only we have the private key. In practice - time is much more valuable than money. :::BEWARE::: DON'T try to change encrypted files by yourself! If you will try to use any third party software for restoring your data or antivirus solutions - please make a backup for all encrypted files! Any changes in encrypted files may entail damage of the private key and, as result, the loss all data.

Signatures

  • Detect Neshta payload 4 IoCs
  • MAKOP ransomware payload 1 IoCs
  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

    ransomwaremakop
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

    persistencespywareneshta
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (3305) 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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
    persistence
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • 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.

  • 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 2 TTPs 1 IoCs

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

    ransomware
  • Modifies data under HKEY_USERS 35 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 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\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3104
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4432
      • C:\Users\Admin\AppData\Local\Temp\3582-490\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe
        "C:\Users\Admin\AppData\Local\Temp\3582-490\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe" n4432
        3⤵
        • Executes dropped EXE
        PID:3992
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2012
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2980
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2100
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2416
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:5056
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3784
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2804
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3128
    • 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:1444

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads

    • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe
      Filesize

      1.7MB

      MD5

      e71df1e094678848bfbb0317816f1ac3

      SHA1

      dd6f7f46de97dc092526179df6281658026658f3

      SHA256

      f8d81321e173209e5e8ba4c46a5046100b34bf5480423807bf7aaa4a0d302a32

      SHA512

      1376f1776340bd147324bc5d55af08805e69c4d110b2197230e37c45a7e63767006b45940cd2e71f6ffa796816c94a19203c042732651029c42292a640d41bf6

      Download Submit

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

      1KB

      MD5

      5d377addd5fb119f9d200838847ff087

      SHA1

      8cdf851e8945d590a672a594cbce8fa354e4542e

      SHA256

      dd62f39b01cf2120c9e21add9e80396b44704d3d9e5499de2ef26fa5824c10bb

      SHA512

      c2779f2e5b30bd6d8337e6663cf17d4ae972f758a894d481b01b3d4f7336734259615592fb7a975b134f5cbc5db19647d26a32f7938c975c361c264d36eeae0c

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\3582-490\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe
      Filesize

      42KB

      MD5

      6096dec7644520ba1a4fdc04183bb62f

      SHA1

      f0eae70b15d663787858a5cc24d8fdf21b67f225

      SHA256

      68dd91e49256ee61ca05a5309db255e9ffe23e8df680ace95d48346e2a39c260

      SHA512

      3680248b7ef0e7304268fa8b277f5c9d823c82185d0137bfa9d756ce9fb6406b1af0be5f4dfb73199a6ba4b175dbca97ac61600f140043a645279110750c8f05

      Download Submit

    • memory/3104-1234-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

      Download

    • memory/3104-7110-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

      Download

    • memory/3104-7112-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

      Download