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Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    18/05/2023, 20:40

General

  • Target

    5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71.exe

  • Size

    823KB

  • MD5

    170a52b8e7c2ff0ccf059bf820d4f461

  • SHA1

    bdadbc5d9188e57d2fa3acdf43c5bb73319bb5b7

  • SHA256

    5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71

  • SHA512

    405608e3ca7a398b04bd7db9e661b3e0c958b5728186924ec7bd27566272f02a9b13b6778d6c1b6bc0fdfea086b904f2fd1c89292e0dfff346d7fc6dd7f0e01a

  • SSDEEP

    24576:mnn/XQ/5zCqQ/NqqUNDNLKrklG5cp0mUDp4wlhxU:mnfpULKr15ci1

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .xaro

  • 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: 0709JOsie

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 16 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
  • 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).

  • 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71.exe
    "C:\Users\Admin\AppData\Local\Temp\5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3532
    • C:\Users\Admin\AppData\Local\Temp\5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71.exe
      "C:\Users\Admin\AppData\Local\Temp\5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3476
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\bd019864-e2fa-4259-b61c-060c47e97e47" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1008
      • C:\Users\Admin\AppData\Local\Temp\5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71.exe
        "C:\Users\Admin\AppData\Local\Temp\5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3928
        • C:\Users\Admin\AppData\Local\Temp\5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71.exe
          "C:\Users\Admin\AppData\Local\Temp\5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2096
          • C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build2.exe
            "C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1272
            • C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build2.exe
              "C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:3924
          • C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build3.exe
            "C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4376
            • 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:4388
  • 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:4812
    • 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:3384

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

    7402b5856a46bd7e564eccca4a06a24e

    SHA1

    06778405023bd2896f644467625c5b70c20028ca

    SHA256

    109c6cd4cec30097f8660b189dc0762b52517facb2b24512567c90f06ab2bac8

    SHA512

    a7e916cdaac41604c52737c98b389b79210fd29da5bb32ee68973acbe54f7964989fb507734e212621f5d1311f7ef593628f22c2ac93bebc6f817a018e5784b2

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

    Filesize

    482B

    MD5

    8c105f6d393f52c8085930240e5ffedb

    SHA1

    08f4bb8b2d5be88e443f48b1e985d21e14933c94

    SHA256

    ddd0cf9459903bb7a81c50a53e8ce576f9e790bfa28cb5a90f27663192173bf2

    SHA512

    cf35eafd643cbe7f42bdb4afb6a8937e5b83b263ff6035cd6bab3c4357877983c4516f0c2376e3e19fb7bc4d5b3c8e5321b947b859ba8c56840d389eefcd11a7

  • C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build2.exe

    Filesize

    379KB

    MD5

    37b6aab56a0f770ce58a670322361a1c

    SHA1

    87606604cdaa89b93d4d1b5e3e12f5ec24f60016

    SHA256

    3d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4

    SHA512

    7b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e

  • C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build2.exe

    Filesize

    379KB

    MD5

    37b6aab56a0f770ce58a670322361a1c

    SHA1

    87606604cdaa89b93d4d1b5e3e12f5ec24f60016

    SHA256

    3d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4

    SHA512

    7b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e

  • C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build2.exe

    Filesize

    379KB

    MD5

    37b6aab56a0f770ce58a670322361a1c

    SHA1

    87606604cdaa89b93d4d1b5e3e12f5ec24f60016

    SHA256

    3d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4

    SHA512

    7b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e

  • C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\2d91fc5e-0703-4cb0-9259-c3aeb6441653\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\bd019864-e2fa-4259-b61c-060c47e97e47\5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71.exe

    Filesize

    823KB

    MD5

    170a52b8e7c2ff0ccf059bf820d4f461

    SHA1

    bdadbc5d9188e57d2fa3acdf43c5bb73319bb5b7

    SHA256

    5e75b2121f0a0419871b8dfdcdd276bb98d2d2f19adb248a7732e1dc127d4e71

    SHA512

    405608e3ca7a398b04bd7db9e661b3e0c958b5728186924ec7bd27566272f02a9b13b6778d6c1b6bc0fdfea086b904f2fd1c89292e0dfff346d7fc6dd7f0e01a

  • 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/1272-164-0x0000000000A70000-0x0000000000AC7000-memory.dmp

    Filesize

    348KB

  • memory/2096-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2096-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2096-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2096-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2096-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2096-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2096-139-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2096-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2096-183-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2096-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3476-118-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3476-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3476-121-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3476-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3476-119-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3532-120-0x0000000002710000-0x000000000282B000-memory.dmp

    Filesize

    1.1MB

  • memory/3924-163-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3924-167-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3924-187-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3924-165-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3924-161-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3924-231-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3924-244-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3924-245-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3924-246-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB