Analysis

  • max time kernel
    146s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/03/2023, 12:11

General

  • Target

    57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927.exe

  • Size

    706KB

  • MD5

    6ca523904efbdd4e7c3d923c97bf74dd

  • SHA1

    c92dc2ab075f4b2c787306ce265d644f54c13e33

  • SHA256

    57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927

  • SHA512

    d4f60662f4512381399e965a0039c90745f2d2bc82698f2e3c9257742047fa26722ae2d90dd18561fefda0699734bdec752e2d6ced157bb4d260babba32eb02b

  • SSDEEP

    12288:iG369q0DYC7LbKM4tkDtLBdF9+xBjK4cJL3yNlwkHKa:iTNbRpQdK4cF3yN

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .cosw

  • offline_id

    fTU4hYOJ0niv7WAg9utRTzxXv2TcoEvGPJhzIot1

  • payload_url

    http://uaery.top/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-hhA4nKfJBj 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: 0658JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.9

Botnet

694f12963bedb0c6040fb3c74aac71e5

C2

https://t.me/nemesisgrow

https://steamcommunity.com/profiles/76561199471222742

http://65.109.12.165:80

Attributes
  • profile_id_v2

    694f12963bedb0c6040fb3c74aac71e5

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
  • 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). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • 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\57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927.exe
    "C:\Users\Admin\AppData\Local\Temp\57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1160
    • C:\Users\Admin\AppData\Local\Temp\57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927.exe
      "C:\Users\Admin\AppData\Local\Temp\57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:628
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\dbd7fb39-710d-4b9c-b3c9-1ae5a2ddcd8b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1116
      • C:\Users\Admin\AppData\Local\Temp\57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927.exe
        "C:\Users\Admin\AppData\Local\Temp\57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1576
        • C:\Users\Admin\AppData\Local\Temp\57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927.exe
          "C:\Users\Admin\AppData\Local\Temp\57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:5096
          • C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build2.exe
            "C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2544
            • C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build2.exe
              "C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:2136
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 1880
                7⤵
                • Program crash
                PID:624
          • C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build3.exe
            "C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1468
            • 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:2184
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2136 -ip 2136
    1⤵
      PID:1340
    • 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:2588
      • 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:1984

    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

      7c6ae82f0661b107fe0029886a8e9506

      SHA1

      20cfdd24e33b49c6bec67a52a8076415ec80fe37

      SHA256

      3853cc02851d35516bd479b587a069d5a9eb60a9a9212d7d85d3b5c7f9c6c0c4

      SHA512

      1a724a00a6fe261240bf6269774b254659843068dd08fc7b3e5c13697c4dc2e164701dd7988fdfe762a2da0ad00cad456ca9bcfee2204bf1df76d5f93a59240c

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

      Filesize

      1KB

      MD5

      fafb2d795af06b05e5ae489401edb786

      SHA1

      137f724049c8ce7dc1d438677f7b6fa32b275205

      SHA256

      7673bf3d6aa2a14da9c3433ac1651d907697a7c79e32987d150a757f3866b5f0

      SHA512

      38c83466ce78cb43dbfa8255432abc7b6347589b0a6dd3b00aa4d81dbd9664a3cafc2bbca9ed38bcfa0ee32ace2a8ea8c8cd5471d6896f7c4dfd6dca03089769

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

      Filesize

      488B

      MD5

      2925a5ed667237551819d7778f8209a8

      SHA1

      7eb8c455b28228b42ceb73f1f11d5a39601ad514

      SHA256

      bbf405c8c66c08e7c48d3d5627cb3fa679f3c953dce8e2d0bfdbef8677ce75e8

      SHA512

      82620dff8e5b011e759c4ef7c0456d9e560fd90f02a1c30d23960f4f92629f0d24a3fe87661e004ad9d271bfba95e1ec68eeec4e0f30c199b9b094463610cd9e

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

      Filesize

      482B

      MD5

      7dea2a2cb472606e7ba73b16526bb1e7

      SHA1

      7b32c0d8a92659b4bcb7d95a8cf4ba587fcc9753

      SHA256

      c620a8b01fcb7188ffbd4b78684494c3c319945e41bf92984d76d22eb67bac89

      SHA512

      9cc65ae8e736c3f5ba45ada68726547dbdefa726e6d30440dfce6c4782cf72cb5fff4ef3ec7ddca2ce6b85275c6e51f8cbbb68f12e891dd35da4b2cae434e673

    • C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build2.exe

      Filesize

      382KB

      MD5

      c56b758f00562948de9cac375422074c

      SHA1

      9f98c4c403b98aea3624d905b2e1ccbe5939c908

      SHA256

      3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

      SHA512

      a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

    • C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build2.exe

      Filesize

      382KB

      MD5

      c56b758f00562948de9cac375422074c

      SHA1

      9f98c4c403b98aea3624d905b2e1ccbe5939c908

      SHA256

      3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

      SHA512

      a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

    • C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build2.exe

      Filesize

      382KB

      MD5

      c56b758f00562948de9cac375422074c

      SHA1

      9f98c4c403b98aea3624d905b2e1ccbe5939c908

      SHA256

      3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

      SHA512

      a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

    • C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build2.exe

      Filesize

      382KB

      MD5

      c56b758f00562948de9cac375422074c

      SHA1

      9f98c4c403b98aea3624d905b2e1ccbe5939c908

      SHA256

      3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

      SHA512

      a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

    • C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\7842a299-77db-4521-85e2-08632d2718fe\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\dbd7fb39-710d-4b9c-b3c9-1ae5a2ddcd8b\57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927.exe

      Filesize

      706KB

      MD5

      6ca523904efbdd4e7c3d923c97bf74dd

      SHA1

      c92dc2ab075f4b2c787306ce265d644f54c13e33

      SHA256

      57a3a57151f67f2e51b91d90e13d7c420c9d6fd2588df2c5ce323e178f614927

      SHA512

      d4f60662f4512381399e965a0039c90745f2d2bc82698f2e3c9257742047fa26722ae2d90dd18561fefda0699734bdec752e2d6ced157bb4d260babba32eb02b

    • 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/628-138-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/628-147-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/628-137-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/628-135-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/628-134-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1160-136-0x0000000002450000-0x000000000256B000-memory.dmp

      Filesize

      1.1MB

    • memory/2136-173-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2136-205-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/2136-276-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2136-179-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2136-183-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2136-274-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2136-273-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2136-171-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2544-174-0x0000000002120000-0x000000000217D000-memory.dmp

      Filesize

      372KB

    • memory/5096-178-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5096-157-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5096-158-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5096-202-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5096-159-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5096-182-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5096-181-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5096-278-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5096-152-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5096-151-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB