Overview

overview

10

Static

static

10

2024-12-18...ta.exe

windows7-x64

10

2024-12-18...ta.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2024 09:33

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General

  • Target

    2024-12-18_f34010ec571393a741145388f6f37555_makop_neshta.exe

  • Size

    89KB

  • MD5

    f34010ec571393a741145388f6f37555

  • SHA1

    87d80fa25b2174c3152abe010cc20e85b8f267af

  • SHA256

    a3fc2e3ded12a37736ab782303544e0d35cca513197f6a19432d6f7e116d5bef

  • SHA512

    86e79e8aa0a0c46586c33a71d84924cbea35b03ef475c627461f9e5be6b9a159fc8baee9b6f644d77c96af6bc6aacf89c03e6d5d8b33d50f64b7df332991e7b6

  • SSDEEP

    1536:JxqjQ+P04wsmJCDX7xaq318HxZATvnsblYOhis:sr85CDXl7318RZEvsbyOhis

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] .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 7 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 (2749) 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
  • 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 2 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 17 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\2024-12-18_f34010ec571393a741145388f6f37555_makop_neshta.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-18_f34010ec571393a741145388f6f37555_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:1688
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2024-12-18_f34010ec571393a741145388f6f37555_makop_neshta.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2024-12-18_f34010ec571393a741145388f6f37555_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:2224
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2548
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:264
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1836
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1760
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1692
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1408
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1632
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:904
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1964

        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

        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

        Exfiltration

        Impact

        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

          95c1aea662731d0ea585563ac21178fa

          SHA1

          04af72a53ab5d308b3f37acee3a67d5ea06dfd00

          SHA256

          27187fc5b78f53c412ad6a336592534491f0e275ec14a8a6b373df8646a0de67

          SHA512

          4bab6e7a16eedc044002510063a3d8e3907f129db551393344c8a771c8ceb94d192d50cc8c35dbf3c3600427a39b9bb387a5fc7839cbe527c2a486d71b5d5ec4

          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\2024-12-18_f34010ec571393a741145388f6f37555_makop_neshta.exe
          Filesize

          49KB

          MD5

          160fd196cd73beb69c7ea9469e5bf70d

          SHA1

          89a55d81b7e9f62005c42a88938af21c6727d69b

          SHA256

          1c27d9211f4436203abfa5c949e19f118e0ab3318026376213ba2b25209b1acd

          SHA512

          cb22e624d7ebada9f8e751e2034e0ffbb758099f1395b1527879e8b775729bc05090d572a5d86595c6456bb10b3250e01a352a279c32a5e08ed4ba3444c7637a

          Download Submit

        • memory/1688-86-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

          Download

        • memory/1688-462-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

          Download

        • memory/1688-463-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

          Download

        • memory/1688-477-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

          Download

        • memory/1688-482-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

          Download

        • memory/1688-484-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

          Download