Analysis

  • max time kernel
    145s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/06/2023, 07:44

General

  • Target

    3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d.exe

  • Size

    798KB

  • MD5

    3866e5486428e7e6d1f123454f1a550a

  • SHA1

    f325e0a667ed6f547319b18b6b64d745c936915d

  • SHA256

    3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d

  • SHA512

    2613f191138b65a6dc32de92cc981a79da0574e6df422825a99ebdb335f4b368f6a2696c98858d76d57926df56fa207e67590d648247c15df3f6d66d4297e3f9

  • SSDEEP

    12288:hcvk+KR/lIWaomQfwJvxxjy7rRAHwK2JkYodTKVSIC05ZrI3E0o:o5M/lIzQfwJvxty7VKp1nvWZ0EB

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .bhtw

  • offline_id

    dC3YFHQV7OsRjFA841iwemRvH1RvytDgyBIx5St1

  • 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-vKvLYNOV9o 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: 0729JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.4

Botnet

153ce668f1e21829c936c2b11fa4d869

C2

https://steamcommunity.com/profiles/76561199235044780

https://t.me/headlist

Attributes
  • profile_id_v2

    153ce668f1e21829c936c2b11fa4d869

  • user_agent

    Mozilla/5.0 (Linux; Android 7.0; Pixel C Build/NRD91D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.124 Safari/537.36

Signatures

  • Detected Djvu ransomware 17 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
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • 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 48 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d.exe
    "C:\Users\Admin\AppData\Local\Temp\3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Users\Admin\AppData\Local\Temp\3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d.exe
      "C:\Users\Admin\AppData\Local\Temp\3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3352
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\102ea510-aee2-4229-a1e5-38cb2345a2cd" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4560
      • C:\Users\Admin\AppData\Local\Temp\3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d.exe
        "C:\Users\Admin\AppData\Local\Temp\3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3180
        • C:\Users\Admin\AppData\Local\Temp\3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d.exe
          "C:\Users\Admin\AppData\Local\Temp\3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4512
          • C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build2.exe
            "C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3564
            • C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build2.exe
              "C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:1320
          • C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build3.exe
            "C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4464
            • 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:1984
  • 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:1584
    • 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:2176

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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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

    cc28aa0c05ba811abf342087612344ed

    SHA1

    d8ff73e12acb37358aea4f2c7689b31ad6759dba

    SHA256

    3accf6994422adb0acdfa3d6f6fd6cd5b835ae970e6700b6e9cb90026d99147f

    SHA512

    f2a2d25ab37fb158d27e4517c01fbaa004ec4c7e40ce037088f4b2977843b1e332dd95db0b56f50c2ac9bea61bd70de4e46ac6a619d7dec1be201cd8517e36a3

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

    Filesize

    1KB

    MD5

    daefef604fc1fe9beac9d70e2ca40aaf

    SHA1

    f08751a1baf50a7f67e79174cecf9a09b47484cc

    SHA256

    5672c6d757edaf5738114d75caf1c0f009519045325d93f6222eebda23dea8b4

    SHA512

    0b2b2a8af8caf1404478c992b86e02ed947916bd2b4fba5b51cb58aad8b7e7e5979d7c11fec9710f206a63ce2cd9c79ef880d0beb51877789a8c10e126cd4bbe

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

    Filesize

    488B

    MD5

    2ca15bb4de628cba69b23f24bb926e40

    SHA1

    e3b36045dea278cc9f748513c43666ebbffdb91e

    SHA256

    d95ad453f0164190a36873826a33e6025a0ac1589a2b67e53746e179630e00db

    SHA512

    3d1bfb753bd9096244961e152313e3d15013870ba6ca713aabb734f36b3d2bee384cc8b3f8563944435a6765360e3230a11768f9a4c912070a01c19f2a6cea34

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

    Filesize

    482B

    MD5

    cc389b72666ad30d63fa7ec135056c24

    SHA1

    b96ae594b26340ac639be06adbd0799108a7be2e

    SHA256

    324d4785ca49b208bdf1a9e64e276a4d5c39124256d5cee9529f2ea3686c671d

    SHA512

    9d67ac17cba1c306d392e327ade707069f28e14bda28a991872d1719caa054679301bd06f825c5d18414435b13e6f5faf0cb2d658d17da191b135208de912a0f

  • C:\Users\Admin\AppData\Local\102ea510-aee2-4229-a1e5-38cb2345a2cd\3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d.exe

    Filesize

    798KB

    MD5

    3866e5486428e7e6d1f123454f1a550a

    SHA1

    f325e0a667ed6f547319b18b6b64d745c936915d

    SHA256

    3968ab06e4eaf9eaac81c5c64bd4712376c32250a3acff34532b1384d8dd8b7d

    SHA512

    2613f191138b65a6dc32de92cc981a79da0574e6df422825a99ebdb335f4b368f6a2696c98858d76d57926df56fa207e67590d648247c15df3f6d66d4297e3f9

  • C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build2.exe

    Filesize

    340KB

    MD5

    b7133c4070082747c60bf6191a5f70de

    SHA1

    a7568a93d9dc79a211270736c5989c5f6635e9b6

    SHA256

    a96e080ee195fb2333191fb38c7a66e0c0bd029af6480dc489a8c8113e5b03a9

    SHA512

    f3dd85289894e9ddfd61d1d5b5cb479b97d7e0759327236b72150d22b790a2492bd4929d8427aac50b48ed6e7e18abccbe401cb7d5f5deb683e8c813afbb72fe

  • C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build2.exe

    Filesize

    340KB

    MD5

    b7133c4070082747c60bf6191a5f70de

    SHA1

    a7568a93d9dc79a211270736c5989c5f6635e9b6

    SHA256

    a96e080ee195fb2333191fb38c7a66e0c0bd029af6480dc489a8c8113e5b03a9

    SHA512

    f3dd85289894e9ddfd61d1d5b5cb479b97d7e0759327236b72150d22b790a2492bd4929d8427aac50b48ed6e7e18abccbe401cb7d5f5deb683e8c813afbb72fe

  • C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build2.exe

    Filesize

    340KB

    MD5

    b7133c4070082747c60bf6191a5f70de

    SHA1

    a7568a93d9dc79a211270736c5989c5f6635e9b6

    SHA256

    a96e080ee195fb2333191fb38c7a66e0c0bd029af6480dc489a8c8113e5b03a9

    SHA512

    f3dd85289894e9ddfd61d1d5b5cb479b97d7e0759327236b72150d22b790a2492bd4929d8427aac50b48ed6e7e18abccbe401cb7d5f5deb683e8c813afbb72fe

  • C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build2.exe

    Filesize

    340KB

    MD5

    b7133c4070082747c60bf6191a5f70de

    SHA1

    a7568a93d9dc79a211270736c5989c5f6635e9b6

    SHA256

    a96e080ee195fb2333191fb38c7a66e0c0bd029af6480dc489a8c8113e5b03a9

    SHA512

    f3dd85289894e9ddfd61d1d5b5cb479b97d7e0759327236b72150d22b790a2492bd4929d8427aac50b48ed6e7e18abccbe401cb7d5f5deb683e8c813afbb72fe

  • C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\a9b47552-8c50-4b19-a533-14265792f528\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

  • memory/1320-171-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1320-268-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1320-267-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1320-265-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1320-198-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1320-188-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1320-174-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1320-175-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/2736-136-0x00000000028F0000-0x0000000002A0B000-memory.dmp

    Filesize

    1.1MB

  • memory/2736-133-0x0000000002730000-0x00000000027C1000-memory.dmp

    Filesize

    580KB

  • memory/3352-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3352-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3352-141-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3352-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3352-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3564-173-0x0000000001DC0000-0x0000000001E16000-memory.dmp

    Filesize

    344KB

  • memory/4512-185-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-157-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-274-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-277-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-276-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-280-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-281-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB