Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2022, 14:21

General

  • Target

    5564c4680da43fb5501cd028b43531f5.exe

  • Size

    730KB

  • MD5

    5564c4680da43fb5501cd028b43531f5

  • SHA1

    0e11e3f578c5271423bb9ace237fb2bebe496444

  • SHA256

    77f6a304c9f641f5c2bb23f1071a28518532f08ecf6aaf99133dfcc89491bcd8

  • SHA512

    aa04b7280e3316c408e2e92d88949a583f4c35012298fc19765c286ec5dc41c3c4a8c2a1698cdafe8cea26b5c329955758b281f0b85698d1a5a5a81cec774baf

  • SSDEEP

    12288:r2V9envgvHStv9oN66C8trmyWq8NZ15kaf7y0ujTQfNcsWXjvQWuODDJ:r2GmStv9oNRPr9W3yVnQF6XjvQCJ

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/test1/get.php

Attributes
  • extension

    .tohj

  • offline_id

    SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://winnlinne.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-Kbx8mJatqN Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0574Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

55

Botnet

517

C2

https://t.me/truewallets

https://mas.to/@zara99

http://116.203.10.3:80

Attributes
  • profile_id

    517

Signatures

  • Detected Djvu ransomware 11 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 6 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe
    "C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe
      "C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:916
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\f8d10a77-8244-4b75-9f36-38d6132dc2b4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1028
      • C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe
        "C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1692
        • C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe
          "C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1652
          • C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build2.exe
            "C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1456
            • C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build2.exe
              "C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Modifies system certificate store
              PID:1808
          • C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build3.exe
            "C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1628
            • C:\Windows\SysWOW64\schtasks.exe
              /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
              6⤵
              • Creates scheduled task(s)
              PID:1992
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {0924AAAD-5212-45BD-A76B-921C34298FA9} S-1-5-21-2292972927-2705560509-2768824231-1000:GRXNNIIE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1380
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1836
      • C:\Windows\SysWOW64\schtasks.exe
        /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
        3⤵
        • Creates scheduled task(s)
        PID:1792

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

          Filesize

          2KB

          MD5

          6f59ed058aa06aaf5ec6213b955aabd4

          SHA1

          baf7b828a563b8fb6111e4ce35e0055575ad80b4

          SHA256

          2d82e2629fa2e08f28b43b15da43dff56c7f4b23b39d66109c7c61998e35b4d5

          SHA512

          6b0f041dafb98b9eaf70ac0d20a98c56e1c42231c4a4ae6e11582b20d20bf8f96dfd7747739a10d77368994441adb0e181b356f8569697b1f22ab4fe931170ce

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

          Filesize

          60KB

          MD5

          d15aaa7c9be910a9898260767e2490e1

          SHA1

          2090c53f8d9fc3fbdbafd3a1e4dc25520eb74388

          SHA256

          f8ebaaf487cba0c81a17c8cd680bdd2dd8e90d2114ecc54844cffc0cc647848e

          SHA512

          7e1c1a683914b961b5cc2fe5e4ae288b60bab43bfaa21ce4972772aa0589615c19f57e672e1d93e50a7ed7b76fbd2f1b421089dcaed277120b93f8e91b18af94

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

          Filesize

          1KB

          MD5

          0698dbc93ba7b6bef73ba316695f8317

          SHA1

          a444078ff1eb7c88f52cb4e324365926b491ed47

          SHA256

          263292040d77903899257c1d21201dc64d6f8d6b5a1d945cd5b28d0124d7906c

          SHA512

          ebacaa7009aebb88199cd70fd0bb3afe69ed300318cb633edd1c0404e42aef829617f589bcbad6cb7ab4bd0a8ae87f7df1435c786184ecc5de61c8fc6950a900

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

          Filesize

          488B

          MD5

          acc6cdf348151eec6907deb06538f9c6

          SHA1

          3bf5760c43413d0ff575913a1f49dfa373dda8a1

          SHA256

          44c0da0ecc2f711abed4665ca5f9438febe9320605ce9084765bcce8415c3cf3

          SHA512

          a90f145adface5b0e3e96776cc4f0b4670fb90b86a6691521f3b150c7747d53552d77d98461a3ffe7a2f21136f9487d867e05a0d18f174599d791d4203c86a57

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

          Filesize

          342B

          MD5

          a998d0956732cb5db608b7a4ebf2e346

          SHA1

          73d089b7ece71bfb7478ef63ecd5dbd78f61088e

          SHA256

          46c0949a1110f2b66bb891e1f27789d707b08f839c6f7248e842864b063fb10c

          SHA512

          cae834fef79eced9e3b7e691557cdf950a637b3aea038a76ccc5ee2f838ce1b18f099daa2d34e894e4b7bb49270532c2a01c4824cd6dcd39bb36f2d2335c3c25

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

          Filesize

          482B

          MD5

          428d69e4e1d3134a3f7d9b2fe123bcf4

          SHA1

          80403f213d1a3b80e3ea46dd1c2010b263b03aa9

          SHA256

          873928578a9a02a6c27ecd74d86f22de9f0caa34eaae3550982e020b8edd1111

          SHA512

          71b4e79ce844bcf66ecb3b93b48bd24522d371e33908cc13d80929a4fc74758682deaa2c7933165f7b92a2f35d6fe4be75e31ac04250f5e844fab6651875fe7b

        • C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\f8d10a77-8244-4b75-9f36-38d6132dc2b4\5564c4680da43fb5501cd028b43531f5.exe

          Filesize

          730KB

          MD5

          5564c4680da43fb5501cd028b43531f5

          SHA1

          0e11e3f578c5271423bb9ace237fb2bebe496444

          SHA256

          77f6a304c9f641f5c2bb23f1071a28518532f08ecf6aaf99133dfcc89491bcd8

          SHA512

          aa04b7280e3316c408e2e92d88949a583f4c35012298fc19765c286ec5dc41c3c4a8c2a1698cdafe8cea26b5c329955758b281f0b85698d1a5a5a81cec774baf

        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • \ProgramData\mozglue.dll

          Filesize

          593KB

          MD5

          c8fd9be83bc728cc04beffafc2907fe9

          SHA1

          95ab9f701e0024cedfbd312bcfe4e726744c4f2e

          SHA256

          ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

          SHA512

          fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

        • \ProgramData\nss3.dll

          Filesize

          2.0MB

          MD5

          1cc453cdf74f31e4d913ff9c10acdde2

          SHA1

          6e85eae544d6e965f15fa5c39700fa7202f3aafe

          SHA256

          ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

          SHA512

          dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

        • \Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • \Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • \Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • \Users\Admin\AppData\Local\b5be3a9b-27f2-4e27-852f-c6687f108036\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • memory/916-55-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/916-59-0x0000000075831000-0x0000000075833000-memory.dmp

          Filesize

          8KB

        • memory/916-61-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/916-62-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/916-66-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1456-94-0x00000000005B0000-0x00000000005FF000-memory.dmp

          Filesize

          316KB

        • memory/1456-92-0x000000000026B000-0x0000000000297000-memory.dmp

          Filesize

          176KB

        • memory/1628-54-0x0000000001E40000-0x0000000001ED2000-memory.dmp

          Filesize

          584KB

        • memory/1628-104-0x0000000001F90000-0x00000000020AB000-memory.dmp

          Filesize

          1.1MB

        • memory/1628-58-0x0000000001E40000-0x0000000001ED2000-memory.dmp

          Filesize

          584KB

        • memory/1628-60-0x0000000001F90000-0x00000000020AB000-memory.dmp

          Filesize

          1.1MB

        • memory/1628-81-0x0000000001F90000-0x00000000020AB000-memory.dmp

          Filesize

          1.1MB

        • memory/1652-74-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1652-82-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1652-73-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1692-71-0x00000000002F0000-0x0000000000382000-memory.dmp

          Filesize

          584KB

        • memory/1692-67-0x00000000002F0000-0x0000000000382000-memory.dmp

          Filesize

          584KB

        • memory/1808-96-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/1808-105-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/1808-111-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/1808-95-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/1808-88-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB