Analysis

  • max time kernel
    66s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/09/2022, 22:03

General

  • Target

    e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6.exe

  • Size

    705KB

  • MD5

    1074d9a955a4e2898d871265284aa43e

  • SHA1

    9e84ee195f9a265f8798864832167a480544bb15

  • SHA256

    e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6

  • SHA512

    b0581bb45928c2c35bc2ed85d8e12338594e9cdb1cb549e89d048e6db15534b629d0f0a931eb299673c757c03c972e0e5fe52e1d7f9d77825fc91739d26ed76d

  • SSDEEP

    12288:DDOjb9HwfNeNztDt50N14ghufItNbs3EEs8XysRq5y6whDoJmkAopg:mjb9QNeNltq34gIfYs3VVo5/d1A

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .ofww

  • offline_id

    xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1

  • 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-EWKSsSJiVn 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: 0569Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

54.6

Botnet

517

C2

https://t.me/huobiinside

https://mas.to/@kyriazhs1975

Attributes
  • profile_id

    517

Signatures

  • Detected Djvu ransomware 10 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
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 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
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6.exe
    "C:\Users\Admin\AppData\Local\Temp\e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4324
    • C:\Users\Admin\AppData\Local\Temp\e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6.exe
      "C:\Users\Admin\AppData\Local\Temp\e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4184
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\f587aa76-5a0f-49d5-b136-4725f02b54f4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3624
      • C:\Users\Admin\AppData\Local\Temp\e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6.exe
        "C:\Users\Admin\AppData\Local\Temp\e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4776
        • C:\Users\Admin\AppData\Local\Temp\e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6.exe
          "C:\Users\Admin\AppData\Local\Temp\e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1300
          • C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build2.exe
            "C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2004
            • C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build2.exe
              "C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4480
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" \/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build2.exe" & del C:\PrograData\*.dll & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3048
                • C:\Windows\SysWOW64\taskkill.exe
                  taskkill /im build2.exe /f
                  8⤵
                  • Kills process with taskkill
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3464
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4508
          • C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build3.exe
            "C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:440
            • 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:2268
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1612
    • 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"
      2⤵
      • Creates scheduled task(s)
      PID:380

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\mozglue.dll

          Filesize

          593KB

          MD5

          c8fd9be83bc728cc04beffafc2907fe9

          SHA1

          95ab9f701e0024cedfbd312bcfe4e726744c4f2e

          SHA256

          ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

          SHA512

          fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

        • C:\ProgramData\nss3.dll

          Filesize

          2.0MB

          MD5

          1cc453cdf74f31e4d913ff9c10acdde2

          SHA1

          6e85eae544d6e965f15fa5c39700fa7202f3aafe

          SHA256

          ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

          SHA512

          dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

          Filesize

          2KB

          MD5

          32958182234a80a5b2589418864f6117

          SHA1

          598276140fd27d8931dbe02625e3378ad9085b8d

          SHA256

          a6f4c0928ecef1052acb557bf148d4d06206afaa0d334d30ef676d8b4b89fdb2

          SHA512

          04157e1f291fb8e11e8134fa321d6473ff7ed55c7848170ac9c6db4dd9e42d8303c40746ce56f4112f26c5ea730703ad00fa52fdf57377c81221473210e49dfa

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

          Filesize

          1KB

          MD5

          0d870ca424457579d4bd345ac1ec6c3c

          SHA1

          fc3d8924e13b4fc5eca7cabd4967eea3d4db1690

          SHA256

          cf9df8d62ec78ca20a50633047af6c913dc2d10f15823795e8d86042c7b05ed0

          SHA512

          a1e731ae03b1a2259f8e1afc86058aabb3b8ce3b0141f08ea18b6c7003c55aeb135d40bba38ebf1f76174eb1ad758fbec10841dee1ed704fb0285e36b2f7d66b

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

          Filesize

          488B

          MD5

          00cd62a3514fabd4eff7332a2c1ec94c

          SHA1

          328b99cdaaa266c3eac55ff29f94f2a5721c5675

          SHA256

          d5968ae1d5eaa79b2da0cdb5acea38dc5abe723b7cafa6443a3091ed99550e1a

          SHA512

          283483cef31593b3690aed323f7c8536840a4c97f78842eb10b5f12d309beb6191db2201bd01f446fd86245282f061aa8602a0a4590c0717a9c9c4e794be0ffe

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

          Filesize

          482B

          MD5

          30ec9d20504205414883e2a9e3913e33

          SHA1

          e0004b6fa4fc7760286dc7b64a7602b1e7df344a

          SHA256

          beab716d0b83308f5f807ae9be89fc2fb3703e2bc1d718b0f5247cb29cc7bf5d

          SHA512

          3144bd44255682f6fd53bdbdc7288f821df277fb246f4040b373889beb65dc0f9c8c37a132c3002df4108169ea555d4978ee6db543b44636b7d72520e0d4f92f

        • C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build2.exe

          Filesize

          246KB

          MD5

          4e08ecaa075b90f30327bf200d23130b

          SHA1

          f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

          SHA256

          6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

          SHA512

          e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

        • C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build2.exe

          Filesize

          246KB

          MD5

          4e08ecaa075b90f30327bf200d23130b

          SHA1

          f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

          SHA256

          6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

          SHA512

          e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

        • C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build2.exe

          Filesize

          246KB

          MD5

          4e08ecaa075b90f30327bf200d23130b

          SHA1

          f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

          SHA256

          6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

          SHA512

          e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

        • C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\f2b7d62a-04a6-45a4-b4e6-000876d2b9fc\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\f587aa76-5a0f-49d5-b136-4725f02b54f4\e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6.exe

          Filesize

          705KB

          MD5

          1074d9a955a4e2898d871265284aa43e

          SHA1

          9e84ee195f9a265f8798864832167a480544bb15

          SHA256

          e85d25193940f0d03ee4b8ae81085b216f674f5882d65f6b5005d6942c2275d6

          SHA512

          b0581bb45928c2c35bc2ed85d8e12338594e9cdb1cb549e89d048e6db15534b629d0f0a931eb299673c757c03c972e0e5fe52e1d7f9d77825fc91739d26ed76d

        • 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

        • memory/1300-145-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1300-147-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1300-192-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1300-152-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2004-161-0x0000000002190000-0x00000000021D7000-memory.dmp

          Filesize

          284KB

        • memory/2004-159-0x0000000000608000-0x0000000000631000-memory.dmp

          Filesize

          164KB

        • memory/4184-134-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4184-142-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4184-136-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4184-133-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4184-138-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4324-137-0x0000000002410000-0x000000000252B000-memory.dmp

          Filesize

          1.1MB

        • memory/4324-135-0x0000000002370000-0x0000000002401000-memory.dmp

          Filesize

          580KB

        • memory/4480-168-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/4480-157-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/4480-189-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/4480-163-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/4480-162-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/4480-160-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/4776-146-0x0000000002151000-0x00000000021E2000-memory.dmp

          Filesize

          580KB