Overview

overview

10

Static

static

10

2024-08-29...ta.exe

windows7-x64

10

2024-08-29...ta.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-08-2024 13:36

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General

  • Target

    2024-08-29_cfa1758608021a9b00f7db2de6aed889_makop_neshta.exe

  • Size

    82KB

  • MD5

    cfa1758608021a9b00f7db2de6aed889

  • SHA1

    7aa7257af37e694ac1f9075334110890fdf659ac

  • SHA256

    54f1445c711a8acd438566fcd9231ea8e9df356a310cf015a716fb80d285f2f9

  • SHA512

    2006bb5ccdaebd41cd5a73aae556a8b1841912ef050f27779fe5e856bad466e6f399f7684936ebc503b23ce3d792e80238bdf2a8c0eba0c248c1143375f04516

  • SSDEEP

    1536:JxqjQ+P04wsmJCRFoTdS1FKnDtkuImIM5smYm:sr85CRCBS1FqtkuImNsm1

Score
10/10
makopneshtadefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Program Files\Common Files\microsoft shared\OFFICE16\Office Setup Controller\+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 mailbox: [email protected] Or you can contact us via TOX: ADA6E26332F26451E45768179C771CA87A7F0F4E234DA8D882888F505494925DCF274A3EA555 You don't know about TOX? Go to https://tox.chat .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.
URLs

https://tox.chat

Signatures

  • Detect Neshta payload 5 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 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (3330) 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 6 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).

  • System Location Discovery: System Language Discovery 1 TTPs 3 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
  • 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\2024-08-29_cfa1758608021a9b00f7db2de6aed889_makop_neshta.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-29_cfa1758608021a9b00f7db2de6aed889_makop_neshta.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:264
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2024-08-29_cfa1758608021a9b00f7db2de6aed889_makop_neshta.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2024-08-29_cfa1758608021a9b00f7db2de6aed889_makop_neshta.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4276
      • C:\Users\Admin\AppData\Local\Temp\3582-490\2024-08-29_cfa1758608021a9b00f7db2de6aed889_makop_neshta.exe
        "C:\Users\Admin\AppData\Local\Temp\3582-490\2024-08-29_cfa1758608021a9b00f7db2de6aed889_makop_neshta.exe" n4276
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:208
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1416
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:3624
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:3000
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4120
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3664
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1804
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2672
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:680
    • 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:1060
    • C:\Windows\System32\RuntimeBroker.exe
      C:\Windows\System32\RuntimeBroker.exe -Embedding
      1⤵
        PID:3000

      Network

      MITRE ATT&CK Enterprise v15

      Reconnaissance

      Resource Development

      Initial Access

      Execution

      Command and Scripting Interpreter

      1
      T1059

      Windows Management Instrumentation

      1
      T1047

      Persistence

      Event Triggered Execution

      1
      T1546

      Change Default File Association

      1
      T1546.001

      Privilege Escalation

      Event Triggered Execution

      1
      T1546

      Change Default File Association

      1
      T1546.001

      Defense Evasion

      Direct Volume Access

      1
      T1006

      Indicator Removal

      3
      T1070

      File Deletion

      3
      T1070.004

      Modify Registry

      1
      T1112

      Credential Access

      Unsecured Credentials

      1
      T1552

      Credentials In Files

      1
      T1552.001

      Discovery

      Peripheral Device Discovery

      1
      T1120

      Query Registry

      5
      T1012

      System Information Discovery

      5
      T1082

      System Location Discovery

      1
      T1614

      System Language Discovery

      1
      T1614.001

      Lateral Movement

      Collection

      Data from Local System

      1
      T1005

      Command and Control

      Exfiltration

      Impact

      Inhibit System Recovery

      3
      T1490

      Replay Monitor

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      Downloads

      • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
        Filesize

        86KB

        MD5

        3b73078a714bf61d1c19ebc3afc0e454

        SHA1

        9abeabd74613a2f533e2244c9ee6f967188e4e7e

        SHA256

        ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

        SHA512

        75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

        Download Submit

      • C:\Program Files\Common Files\microsoft shared\OFFICE16\Office Setup Controller\+README-WARNING+.txt
        Filesize

        1KB

        MD5

        1a80c54ec6c91ad26568dbb776af7b44

        SHA1

        f0931e5bd93a6b36393494f978f864c135a7d0af

        SHA256

        836a753bf4c2261ec1e1ad3c761c9fcded1342de63ad70a1eac2826ddb8e1254

        SHA512

        d09f605733927fc2bff169757b38af0cfb724b30ff40316a915f0c26a1e6d453913a35440040cafd974288cc37a31426413a0e814744f7bfad9dcb7088381cbc

        Download Submit

      • C:\Users\Admin\AppData\Local\Temp\3582-490\2024-08-29_cfa1758608021a9b00f7db2de6aed889_makop_neshta.exe
        Filesize

        42KB

        MD5

        3811d51b51ce6a7b7fa98da1e6df28aa

        SHA1

        c2fbcaaacf82789fdcdc15977fbc40e02d9bd9e3

        SHA256

        d8cd2e5790dbc4538879fe00b4ff0e6ea733bcea5dd1294208a24e241247592f

        SHA512

        9886948928d2054ed688f40716f093569c93e1a036289a5e20099811ce70280b6d2e1522cbfaee65ee90cedfd0bf3a46036d524fe658d95d50679fdc52fe449d

        Download Submit

      • memory/264-334-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

        Download

      • memory/264-4208-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

        Download

      • memory/264-7170-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

        Download

      • memory/264-7172-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

        Download