Overview

overview

10

Static

static

10

2025-02-01...ta.exe

windows7-x64

10

2025-02-01...ta.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    102s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-02-2025 07:39

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General

  • Target

    2025-02-01_956d4875855427a4eab2929413b397eb_makop_neshta.exe

  • Size

    89KB

  • MD5

    956d4875855427a4eab2929413b397eb

  • SHA1

    f1b139d31050e53aef22d3cdee0a98c510165d99

  • SHA256

    72b86cb783b57ef3a62fcce38ff308fdd303f38f73e8283356f5140e8607e2ea

  • SHA512

    61a3fdeee055319b6c9c25c0f136cc4b07844d61c079f3cca23d79344f3add6d5edc397f95de8a61ca16f9fd45f4a05df997ae542a6ef4cdba27307966e763f3

  • SSDEEP

    1536:JxqjQ+P04wsmJCPbInVXEedxaX318HxZATvnsblYO6CaPK7s:sr85CPIlHa318RZEvsbyOZaPus

Score
10/10
makopneshtadefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\+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] 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 3 IoCs
  • MAKOP ransomware payload 1 IoCs
  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

    ransomwaremakop
  • Makop family
    makop
  • Neshta

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

    persistencespywareneshta
  • Neshta family
    neshta
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (8316) 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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
    persistence
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • 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
  • 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
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 21 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\2025-02-01_956d4875855427a4eab2929413b397eb_makop_neshta.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-01_956d4875855427a4eab2929413b397eb_makop_neshta.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2025-02-01_956d4875855427a4eab2929413b397eb_makop_neshta.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2025-02-01_956d4875855427a4eab2929413b397eb_makop_neshta.exe"
      2⤵
      • Executes dropped EXE
      • Sets desktop wallpaper using registry
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2092
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2436
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2796
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1984
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\+README-WARNING+.txt
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2300
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\+README-WARNING+.txt
        3⤵
          PID:2136
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:572
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2012
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:1712
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:2956
        • C:\Windows\system32\Dwm.exe
          "C:\Windows\system32\Dwm.exe"
          1⤵
            PID:900

          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

          2
          T1112

          Credential Access

          Credentials from Password Stores

          1
          T1555

          Credentials from Web Browsers

          1
          T1555.003

          Unsecured Credentials

          1
          T1552

          Credentials In Files

          1
          T1552.001

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          System Location Discovery

          1
          T1614

          System Language Discovery

          1
          T1614.001

          Lateral Movement

          Collection

          Data from Local System

          1
          T1005

          Command and Control

          Web Service

          1
          T1102

          Exfiltration

          Impact

          Defacement

          1
          T1491

          Inhibit System Recovery

          3
          T1490

          Replay Monitor

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          Downloads

          • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe
            Filesize

            547KB

            MD5

            cf6c595d3e5e9667667af096762fd9c4

            SHA1

            9bb44da8d7f6457099cb56e4f7d1026963dce7ce

            SHA256

            593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

            SHA512

            ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

            Download Submit

          • C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\+README-WARNING+.txt
            Filesize

            1KB

            MD5

            a0f66ba6e48fffac414993e930f3b2b5

            SHA1

            424a2fc2f4e96ee9e08cb1ce854ddcc07bfdecc2

            SHA256

            87e7f00690e9393defaf786d758cd2acb231a1a74e7926f4487e67963613357c

            SHA512

            aa00577bf5e67a2eab3550b8e44c949e947251764e9e079045b5320955df306397d2a20231111708aec414252a9f4611a831305e68b41cbefd31d9e908ec1cbf

            Download Submit

          • C:\Users\Admin\AppData\Local\Temp\tmp5023.tmp
            Filesize

            8B

            MD5

            7d0f9a8e8fc7e94a548e6721490ce0ae

            SHA1

            3597427d86395f967a450dcd3beeb4902d1ecb83

            SHA256

            8c92e7b32627b849ed826fc38f314b930ea3dd627aaa68fdd6c4ef3d0ef9e7db

            SHA512

            ee772c8ca19ff946e34421a17ea8ec0c80ce14ac9e1ed6752190c674376f083c602e495884ac89518057342c7dc09b3d6ff8bfa7e72f0328efd70627b9a5f72a

            Download Submit

          • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
            Filesize

            252KB

            MD5

            9e2b9928c89a9d0da1d3e8f4bd96afa7

            SHA1

            ec66cda99f44b62470c6930e5afda061579cde35

            SHA256

            8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

            SHA512

            2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

            Download Submit

          • \Users\Admin\AppData\Local\Temp\3582-490\2025-02-01_956d4875855427a4eab2929413b397eb_makop_neshta.exe
            Filesize

            49KB

            MD5

            f2f90ff3ef928a4c328d8fafdd6f5b4d

            SHA1

            a9c5f68926f1c5a1f4af3b90568e37d32f667a09

            SHA256

            a746ab28531910fd2cdc915a37974ce5c9cfc6f7c697ebec523e2e2766b19035

            SHA512

            f18554bf4c417542edd26bbb117b8187625d060889de31c23095b3a7df9f0c700a51307c44d2b7e7c56b0cec2d9d6ef5abfa29768867087fb0d10e0081063707

            Download Submit

          • memory/1916-411-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

            Download

          • memory/1916-474-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

            Download