Analysis

  • max time kernel
    144s
  • max time network
    126s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    19/05/2023, 06:19

General

  • Target

    0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf.exe

  • Size

    823KB

  • MD5

    5c03743f13de536a0787c5d90fd96eae

  • SHA1

    5179b67bc8b556ada6770de0efc358a6b2061a05

  • SHA256

    0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf

  • SHA512

    d51c83b7fd897e5fa85b62d3734f1dff61dbe18c429490169b4b027887415ba7013ea8f462d20d7981fef2f56979adeeeec1ce7f4ae746059862268470d23793

  • SSDEEP

    12288:Ru2R1aBpw0DBH/qT4ExdNnv4WIm0O4ffLtPQt4ALYsaGul7T1uT5PUtD:R71av5d/qEkNvtR0O4HRcLYX7AT5PUZ

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .xash

  • offline_id

    uK3VnHYy6oibGbO8t2PDOMcT40gQoh5oUUCe2Lt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.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-otP8Wlz4eh 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: 0707JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.9

Botnet

9dfa7ee730fa2f1efb5ed51dbbec22f5

C2

https://steamcommunity.com/profiles/76561199263069598

https://t.me/cybehost

Attributes
  • profile_id_v2

    9dfa7ee730fa2f1efb5ed51dbbec22f5

  • user_agent

    Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.7 (like Gecko) (Debian)

Signatures

  • Detected Djvu ransomware 15 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 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
  • 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).

  • 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
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf.exe
    "C:\Users\Admin\AppData\Local\Temp\0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2476
    • C:\Users\Admin\AppData\Local\Temp\0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf.exe
      "C:\Users\Admin\AppData\Local\Temp\0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2540
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\14327b05-4825-46b8-b55c-e92faa105a58" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4300
      • C:\Users\Admin\AppData\Local\Temp\0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf.exe
        "C:\Users\Admin\AppData\Local\Temp\0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4328
        • C:\Users\Admin\AppData\Local\Temp\0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf.exe
          "C:\Users\Admin\AppData\Local\Temp\0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4684
          • C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build2.exe
            "C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1420
            • C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build2.exe
              "C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4600
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4468
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4964
          • C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build3.exe
            "C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2668
            • 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:4800
  • 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:4904
    • 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:4908

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

          cb219b121c03308da05e261107dcde69

          SHA1

          2816c0b95985ce8b42e4f8c30aae93279c3979ef

          SHA256

          d18ee47a9beb6ab36215bb1b778ec97d87c7b6c16ab6449fc6da51ec5ef9967b

          SHA512

          6353b7fa84d06fcb975882c3fb9d0c7e0103ccbbab1101fdb9310ed0d55657e5f714527d59e0d57e9949dc1ecbb9265567cb5393f2a9d9c5968e641b56b82cb3

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

          Filesize

          1KB

          MD5

          374bcc93961e172a78f2a2ded74f3433

          SHA1

          e9bbbb1dcbea961e0aa7d502d032c2fe009397b8

          SHA256

          a6032f21906faae6e57164b9048d08c6f65fccc04ac64a3fe622f0f0360e5239

          SHA512

          6272ff1b1c042adec0f2a424f582f1567c4ce068ef98d8bdb1fee5727c075f2994a27f323a2e45d90b0b993a003741e40810a7ca920a6f5d81f821835f0e69ed

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

          Filesize

          488B

          MD5

          c0d3809c69df1ba7f3d7a9482d630ae2

          SHA1

          ef88cd9514b68fe93f1ec932f97a653fbfe59eb1

          SHA256

          4d978375f1d27302dc96dbb4c7be29737ebff48954e260496c8da4b9f4c7e617

          SHA512

          4c60523d9b74829fecc20441d0e51190279bfe2030118b8147912fcd01ec25416cca6b2c49b131314182c4ffc38a269101d9694752cb7605ad922b8018c5542f

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

          Filesize

          482B

          MD5

          81d6c87600c95fad5045c61fb78bae62

          SHA1

          b439e66a80eb1bc21be47109fea14ab9a39d970a

          SHA256

          9ab6c5f7eede7f67693a1b52c203693b3ab1ef8ccaeb050115fd0e47a2458b18

          SHA512

          60b8709bb56e88bc9cbc595761e7f6c9948b742702a7a1cbad4833448bf1bc8c9cc9f6937c138c48e94906ec8628cd91f5d9a740bb490513c193ee8ffd17dfec

        • C:\Users\Admin\AppData\Local\14327b05-4825-46b8-b55c-e92faa105a58\0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf.exe

          Filesize

          823KB

          MD5

          5c03743f13de536a0787c5d90fd96eae

          SHA1

          5179b67bc8b556ada6770de0efc358a6b2061a05

          SHA256

          0b5b173442717540eafb8319b62aaa98aa3c222eaae1ebc49a712f7b6dc9bcaf

          SHA512

          d51c83b7fd897e5fa85b62d3734f1dff61dbe18c429490169b4b027887415ba7013ea8f462d20d7981fef2f56979adeeeec1ce7f4ae746059862268470d23793

        • C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build2.exe

          Filesize

          379KB

          MD5

          37b6aab56a0f770ce58a670322361a1c

          SHA1

          87606604cdaa89b93d4d1b5e3e12f5ec24f60016

          SHA256

          3d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4

          SHA512

          7b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e

        • C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build2.exe

          Filesize

          379KB

          MD5

          37b6aab56a0f770ce58a670322361a1c

          SHA1

          87606604cdaa89b93d4d1b5e3e12f5ec24f60016

          SHA256

          3d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4

          SHA512

          7b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e

        • C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build2.exe

          Filesize

          379KB

          MD5

          37b6aab56a0f770ce58a670322361a1c

          SHA1

          87606604cdaa89b93d4d1b5e3e12f5ec24f60016

          SHA256

          3d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4

          SHA512

          7b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e

        • C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\b52b06c1-512a-440a-9b3d-dc136a4ff870\build3.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

        • 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

        • memory/1420-168-0x0000000002530000-0x0000000002587000-memory.dmp

          Filesize

          348KB

        • memory/2476-124-0x0000000002930000-0x0000000002A4B000-memory.dmp

          Filesize

          1.1MB

        • memory/2540-137-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2540-126-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2540-122-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2540-125-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2540-123-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4600-191-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/4600-165-0x0000000000400000-0x000000000046B000-memory.dmp

          Filesize

          428KB

        • memory/4600-167-0x0000000000400000-0x000000000046B000-memory.dmp

          Filesize

          428KB

        • memory/4600-231-0x0000000000400000-0x000000000046B000-memory.dmp

          Filesize

          428KB

        • memory/4600-171-0x0000000000400000-0x000000000046B000-memory.dmp

          Filesize

          428KB

        • memory/4600-169-0x0000000000400000-0x000000000046B000-memory.dmp

          Filesize

          428KB

        • memory/4600-230-0x0000000000400000-0x000000000046B000-memory.dmp

          Filesize

          428KB

        • memory/4600-229-0x0000000000400000-0x000000000046B000-memory.dmp

          Filesize

          428KB

        • memory/4684-148-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4684-155-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4684-153-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4684-156-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4684-149-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4684-188-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4684-170-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4684-142-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4684-141-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB