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
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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:\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] .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
  • 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 (8323) 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 2 IoCs
  • Loads dropped DLL 3 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
  • 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).

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 29 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⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1960
    • 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
      • Sets desktop wallpaper using registry
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1760
      • 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" n1760
        3⤵
        • Executes dropped EXE
        PID:1028
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1788
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2360
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1528
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1772
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ping 1.1.1.1 -n 5 & fsutil file setZeroData offset=0 length=131072 "C:\Users\Admin\AppData\Local\Temp\3582-490\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe" & del /q /f "C:\Users\Admin\AppData\Local\Temp\3582-490\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:280
        • C:\Windows\SysWOW64\PING.EXE
          ping 1.1.1.1 -n 5
          4⤵
          • Runs ping.exe
          PID:908
        • C:\Windows\SysWOW64\fsutil.exe
          fsutil file setZeroData offset=0 length=131072 "C:\Users\Admin\AppData\Local\Temp\3582-490\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe"
          4⤵
            PID:1452
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2776
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1712
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:628
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:852
        • C:\Windows\system32\Dwm.exe
          "C:\Windows\system32\Dwm.exe"
          1⤵
            PID:2680

          Network

          MITRE ATT&CK Enterprise v15

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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

            5d377addd5fb119f9d200838847ff087

            SHA1

            8cdf851e8945d590a672a594cbce8fa354e4542e

            SHA256

            dd62f39b01cf2120c9e21add9e80396b44704d3d9e5499de2ef26fa5824c10bb

            SHA512

            c2779f2e5b30bd6d8337e6663cf17d4ae972f758a894d481b01b3d4f7336734259615592fb7a975b134f5cbc5db19647d26a32f7938c975c361c264d36eeae0c

            Download Submit

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

            24B

            MD5

            f6731655163698a1c30f016bdf7aa5cb

            SHA1

            13fb583bffe3faa4b8fa3b196ccd7c35a67bce3e

            SHA256

            8e0c69dc08694e5c314861bda9300866cffc05c707556cdb022038cf9014da0b

            SHA512

            e51a62c0df3099d14c72c89af06a8c45a9c0fdc960952b9268c1949e81af468a890d17df443fb2498d79bc1f01e433b97e0f6b25111ca097a8e9ba020f1d3ff5

            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\2023-12-12_f346aad7f24a9ab3442b802e0ef42cf3_makop_neshta.exe
            Filesize

            42KB

            MD5

            6096dec7644520ba1a4fdc04183bb62f

            SHA1

            f0eae70b15d663787858a5cc24d8fdf21b67f225

            SHA256

            68dd91e49256ee61ca05a5309db255e9ffe23e8df680ace95d48346e2a39c260

            SHA512

            3680248b7ef0e7304268fa8b277f5c9d823c82185d0137bfa9d756ce9fb6406b1af0be5f4dfb73199a6ba4b175dbca97ac61600f140043a645279110750c8f05

            Download Submit

          • memory/1960-481-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

            Download

          • memory/1960-489-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

            Download