Overview

overview

10

Static

static

10

3b15b66bf6...1e.exe

windows7-x64

10

3b15b66bf6...1e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    03-02-2024 17:08

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General

  • Target

    3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe

  • Size

    34KB

  • MD5

    5bcf1a6a65d8d0d2ad1c2a78935322b5

  • SHA1

    c5af15f8170e3840ba756397cb1548fa9489fae9

  • SHA256

    3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e

  • SHA512

    f21e3bc29b60d3ed248dd048774823d013beb43f2fcf7e560774f1987dc07ff42de2fb68a8dd3bad0653a8587cca9b9f18e0671342c81d8c5698b97a135eb639

  • SSDEEP

    768:24HLd8Vdh1qV1Esg8kdJCzSIZHkKRV6kNDB3eHkkb/u:2Q8VgV1U8ZGURVFB3eH/u

Score
10/10
makopransomwarespywarestealer

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\readme-warning.txt

Family

makop

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 in bitcoins. .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. .4. Q: How to contact with you? A: You can write us to our mailbox: [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

  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

    ransomwaremakop
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (8221) 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
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies system certificate store 2 TTPs 6 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 13 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\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe
    "C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe
      "C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe" n1644
      2⤵
        PID:1752
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1548
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2220
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:2756
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1032
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2420
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2356
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:2596
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:2628

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\readme-warning.txt
          Filesize

          1KB

          MD5

          77a68ff56146027e479d7fb6c84c4aa4

          SHA1

          d58ca47125ce00bf752bd66c378ace3559b98689

          SHA256

          fb25fd1761c66f21136889ce4f5a15c84e60e47e26595ae1b77f5f4f63d95f7f

          SHA512

          f47b954833905f6e6d17f98d882f460c7fd73e47efd48a9ddd01a16410c0754d240dab6fc45ae0afa3516f9dea24895619fdcbd96e232c5c3347e23fe485830e

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        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
          Filesize

          344B

          MD5

          c1eb3a79a38bdc2b6cde92e5108d0ecb

          SHA1

          a264fb7634edbf151d1ff2047525c3412f8cb71c

          SHA256

          903da5d66290849bde624de0e58025d021db4c0465672adfb25f2e2db40b5c23

          SHA512

          60f2a2454b44595485446cff7c498b2736aa0feb80fe32b9f3841bac0ce4d5df6ded44f41d0f3725cd8517c49238d97c4e6d5994ec6383532cdb51c296227cd0

          Download Submit

        • C:\Users\Admin\AppData\Local\Temp\Cab5514.tmp
          Filesize

          20KB

          MD5

          5417cccdf30072d09bf720ab49d9fde3

          SHA1

          2c9f6d5eca50ec5831ba2453b5f92a9ba36d621a

          SHA256

          0782a362fa8c1c0a01256ea6a3ad119e380e1f8e40495942f97b14c977422c2b

          SHA512

          7bae686c64351e1ada48143be6143c297578ca69f6c59ccc8e7167719bac31215dd932a2fa663cebac1397dce2b7728735240521ca3b467a7402154ac7439184

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        • C:\Users\Admin\AppData\Local\Temp\Tar55B3.tmp
          Filesize

          171KB

          MD5

          9c0c641c06238516f27941aa1166d427

          SHA1

          64cd549fb8cf014fcd9312aa7a5b023847b6c977

          SHA256

          4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

          SHA512

          936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

          Download Submit