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
    26/05/2023, 12:13

General

  • Target

    8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5.exe

  • Size

    773KB

  • MD5

    0efae7bfe41785fa9980eec2c866deab

  • SHA1

    d1620c40820eef4ae2255af1988298250329eb18

  • SHA256

    8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5

  • SHA512

    93315462480d336b1f3fca9427cebb2fb0959c9ffa7d41fdfb649ecad9c493a3c8b6ba7a73d1410d274f6d68500dd3d347481be8dc7a1fcd7c75bf18a2878eb4

  • SSDEEP

    24576:wEVuSjVjCpuYVsSImNXKTsMtz0e5IG2fg:H7jxrYVs+KQUIe2G2fg

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .vapo

  • offline_id

    BUcuB8PRg0LNi380axIJs5BS8nCUdeo9U88L2Lt1

  • 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-tnzomMj6HU 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: 0717JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4

Botnet

e44c96dfdf315ccf17cdd4b93cfe6e48

C2

https://steamcommunity.com/profiles/76561199508624021

https://t.me/looking_glassbot

Attributes
  • profile_id_v2

    e44c96dfdf315ccf17cdd4b93cfe6e48

  • user_agent

    Mozilla/5.0 (X11; CrOS x86_64 14541.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

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\8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5.exe
    "C:\Users\Admin\AppData\Local\Temp\8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3644
    • C:\Users\Admin\AppData\Local\Temp\8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5.exe
      "C:\Users\Admin\AppData\Local\Temp\8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3920
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\cb5992ae-5ef5-445c-8578-4a3f2539b492" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4212
      • C:\Users\Admin\AppData\Local\Temp\8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5.exe
        "C:\Users\Admin\AppData\Local\Temp\8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1996
        • C:\Users\Admin\AppData\Local\Temp\8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5.exe
          "C:\Users\Admin\AppData\Local\Temp\8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4204
          • C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build2.exe
            "C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2744
            • C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build2.exe
              "C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:1140
          • C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build3.exe
            "C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3872
            • 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:4384
  • 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:4280
    • 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:4356

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

    de4be4c4e0e9cd4f8d9cbe736c23c184

    SHA1

    f46e03a991a06ba383ccd1d0a8a9a06426322dfa

    SHA256

    86d888eec3475b61914dfe4de9c29e55f7d382660a739cab5a200bd189048ec2

    SHA512

    8e6bba4416f6b7be02e94ae3ac8da5e20907136d12a8ee5257888cde98dc6093353460172d80b0d2271981ac0ff37ab678da95ef081c115fe0b47d9c90360096

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

    Filesize

    1KB

    MD5

    26ddbe6a19c10cd59ba8e526eea7ba4b

    SHA1

    c656009d00e0df083371c94e45c1215d5badc200

    SHA256

    a43996cd78f46780f607a812c6bdb8f389feb17a3e9739ca7629b725f255ceb1

    SHA512

    1e4cd6289ed0b8415362d045ce4d76bef0c5d37384106414dcc17bf0e2708fab13c2fdbf397d14769985a2f0841d155fada106352813ef71ceb9a434396fac1c

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

    Filesize

    488B

    MD5

    9605e54dd2a4d24e33105bf1329e0384

    SHA1

    46037251ede3795ed50182ff7f254c296fe87443

    SHA256

    6c73aeced8f8275ae7985a7687c66daa7e41f9b3e384abddc608ca75d0ad6913

    SHA512

    6f4b45b091e3627408c76406e22615778e0dcf0c52dc12d58513965b95f1b708fa378df4f5517416ac828ebc38a8465372bfb795d3db2abbe51e46d69aadb21a

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

    Filesize

    482B

    MD5

    bcc36c571701aaebac9bd9b6498d10f9

    SHA1

    7cf49cc789b61be44f103a17c321c935569a72fd

    SHA256

    99e0f0d98976ca411808bbc3ae78a303e165665b7ee8d4f426d5c7b8029d4077

    SHA512

    0179cd4321b9d7018b76f4e740802e6860bb8fcf0470a61adb77004f4164aabb20e91cef8762938e6ee3c4fe0c36607a3eb65d9908d7bba9c8e3ce3a22151659

  • C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build2.exe

    Filesize

    327KB

    MD5

    b888efe68f257aa2335ed9cbd63c1343

    SHA1

    c1a97d41d16a7a274802e873ce6b990312b07e03

    SHA256

    c8b5119160d3301fc69657f1c23c8561e6290b953ec645298f436431d41bbd70

    SHA512

    7d5bfc95c8f3d5bcc12a4ae1929b4ff946ab3747b29b3ab57b684decfa78db4836ec187d8a9ecda5d2e6c4baa02989ac1648fb9aaa0e592fb3a70f880529e3a8

  • C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build2.exe

    Filesize

    327KB

    MD5

    b888efe68f257aa2335ed9cbd63c1343

    SHA1

    c1a97d41d16a7a274802e873ce6b990312b07e03

    SHA256

    c8b5119160d3301fc69657f1c23c8561e6290b953ec645298f436431d41bbd70

    SHA512

    7d5bfc95c8f3d5bcc12a4ae1929b4ff946ab3747b29b3ab57b684decfa78db4836ec187d8a9ecda5d2e6c4baa02989ac1648fb9aaa0e592fb3a70f880529e3a8

  • C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build2.exe

    Filesize

    327KB

    MD5

    b888efe68f257aa2335ed9cbd63c1343

    SHA1

    c1a97d41d16a7a274802e873ce6b990312b07e03

    SHA256

    c8b5119160d3301fc69657f1c23c8561e6290b953ec645298f436431d41bbd70

    SHA512

    7d5bfc95c8f3d5bcc12a4ae1929b4ff946ab3747b29b3ab57b684decfa78db4836ec187d8a9ecda5d2e6c4baa02989ac1648fb9aaa0e592fb3a70f880529e3a8

  • C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\6e431e21-c73a-488d-91b1-88a459fdf36d\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\cb5992ae-5ef5-445c-8578-4a3f2539b492\8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5.exe

    Filesize

    773KB

    MD5

    0efae7bfe41785fa9980eec2c866deab

    SHA1

    d1620c40820eef4ae2255af1988298250329eb18

    SHA256

    8b8cbc923d321af2bcde227148c7b9cb6d45779776a21edf5d72e98ba2da8ac5

    SHA512

    93315462480d336b1f3fca9427cebb2fb0959c9ffa7d41fdfb649ecad9c493a3c8b6ba7a73d1410d274f6d68500dd3d347481be8dc7a1fcd7c75bf18a2878eb4

  • 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/1140-165-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/1140-166-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/1140-247-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/1140-246-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/1140-232-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/1140-187-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1140-161-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/1140-245-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/1140-163-0x0000000000400000-0x000000000046D000-memory.dmp

    Filesize

    436KB

  • memory/2744-164-0x00000000022C0000-0x0000000002319000-memory.dmp

    Filesize

    356KB

  • memory/3644-118-0x0000000002620000-0x000000000273B000-memory.dmp

    Filesize

    1.1MB

  • memory/3920-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3920-121-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3920-119-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3920-120-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3920-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-183-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-176-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-139-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB