Analysis

  • max time kernel
    143s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-03-2023 22:36

General

  • Target

    d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6.exe

  • Size

    792KB

  • MD5

    4c1c402835277ac54807d734afc5e902

  • SHA1

    2bc18b33ac90dcfcf992aced9fb72ce9e0bda4a4

  • SHA256

    d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6

  • SHA512

    1a2bbfeb26044d36ac063a2f7538dc6e239ae35f3c2ea630a50cccb6be5b3c6d2c009970a89bcfd0d3a70fa8eabac1cd4363c020e2c4b62ac446a35c1f8d8b66

  • SSDEEP

    12288:YkcUxinao7/kyiaWhN1UHuUn05FS8uBGGtPX/KbHB4pkplpYwbqtlUr:pYijNCOZ48u9JKrBy8pYwbqtl0

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

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\d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6.exe
    "C:\Users\Admin\AppData\Local\Temp\d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5088
    • C:\Users\Admin\AppData\Local\Temp\d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6.exe
      "C:\Users\Admin\AppData\Local\Temp\d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5056
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\fc256c36-c540-4d6a-a08b-10e647f8bcf8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1472
      • C:\Users\Admin\AppData\Local\Temp\d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6.exe
        "C:\Users\Admin\AppData\Local\Temp\d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3576
        • C:\Users\Admin\AppData\Local\Temp\d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6.exe
          "C:\Users\Admin\AppData\Local\Temp\d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1828
          • C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build2.exe
            "C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4480
            • C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build2.exe
              "C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:3328
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3328 -s 1572
                7⤵
                • Program crash
                PID:2628
          • C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build3.exe
            "C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4640
            • 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:1032
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3328 -ip 3328
    1⤵
      PID:3840
    • 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:2268
      • 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:4436

    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

      5ebbd3148318b887eccd6d81bd608ec7

      SHA1

      ac423bb92c9d74450c668b8c69926774f2ae147b

      SHA256

      ed62e08399e483e87941ea69f03fec9ea48186b14c9d1fd54f238a97935dade5

      SHA512

      5c6e1c4df548d66ca68f0d169361c7d53ed104e916db2d2c6fd41de929b8bdc9cdb5f635657cda94e710c4c7ef44d457b5e3c13c6c20a758d1537bbdb1fadef8

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

      Filesize

      1KB

      MD5

      bf56fe61b0bda7a5625f77c70820d98a

      SHA1

      bc52c58737644c029bc68177da93f885e2efb505

      SHA256

      5e2a6b3fee5aee875bbb5e5bc8236de647c6a77ff4d024881c878dcaa5c4cf1e

      SHA512

      74e6db364d6f0718d1f8874532e58f6271c5988825223752226508e20b656e67a64b10a76167eb7749d156a58322212c4db8e83895779b5815f41256a8274649

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

      Filesize

      488B

      MD5

      13f0f1740c590d2537adcd90c955e0a8

      SHA1

      13d499c26dae7468ee306b520ffa4a324dfbb7ee

      SHA256

      3f705f9dd8dbcd2d93151db5d41acf6e37d6a79229c2b8d4a604ec504b10026f

      SHA512

      1fe314fa2fdd81159dc11cda94a3adfd47efe75f9d13d1c18b75fcaa202d7fdfb9737635cc1e30ca61074b7702711c611a56a884eda23c795dda5002e19bdbeb

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

      Filesize

      482B

      MD5

      5f94dc96d2714c9c2b61cb4c0399e750

      SHA1

      03645b3ea201a63d494ed294e615f6328de5d26f

      SHA256

      e050d511bb1d37d94b086e4e7b9070ebcfab8a4aca2d840bfb7f210bbf4e2e0b

      SHA512

      7c39c57a6b760aa670474094cb87c7a5574fb4029bc72fd6470db9a34f5fb8262785888cd904fbd5a3dce6f03398cdb8676c593f408464d99a2a9ccb86a7cde0

    • C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build2.exe

      Filesize

      382KB

      MD5

      c56b758f00562948de9cac375422074c

      SHA1

      9f98c4c403b98aea3624d905b2e1ccbe5939c908

      SHA256

      3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

      SHA512

      a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

    • C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build2.exe

      Filesize

      382KB

      MD5

      c56b758f00562948de9cac375422074c

      SHA1

      9f98c4c403b98aea3624d905b2e1ccbe5939c908

      SHA256

      3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

      SHA512

      a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

    • C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build2.exe

      Filesize

      382KB

      MD5

      c56b758f00562948de9cac375422074c

      SHA1

      9f98c4c403b98aea3624d905b2e1ccbe5939c908

      SHA256

      3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

      SHA512

      a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

    • C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build2.exe

      Filesize

      382KB

      MD5

      c56b758f00562948de9cac375422074c

      SHA1

      9f98c4c403b98aea3624d905b2e1ccbe5939c908

      SHA256

      3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

      SHA512

      a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

    • C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\812af644-fba9-4cea-9cb7-ab9f7dcf6bc4\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\fc256c36-c540-4d6a-a08b-10e647f8bcf8\d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6.exe

      Filesize

      792KB

      MD5

      4c1c402835277ac54807d734afc5e902

      SHA1

      2bc18b33ac90dcfcf992aced9fb72ce9e0bda4a4

      SHA256

      d2e95440f0133e449cfb7725eaa044adfda8cf5370663e038677acd1c2d5ddd6

      SHA512

      1a2bbfeb26044d36ac063a2f7538dc6e239ae35f3c2ea630a50cccb6be5b3c6d2c009970a89bcfd0d3a70fa8eabac1cd4363c020e2c4b62ac446a35c1f8d8b66

    • 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/1828-170-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1828-175-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1828-153-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1828-173-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1828-282-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1828-159-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1828-162-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1828-201-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1828-154-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1828-163-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3328-187-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3328-278-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3328-185-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3328-184-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3328-182-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3328-277-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3328-209-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/4480-186-0x0000000000650000-0x00000000006AD000-memory.dmp

      Filesize

      372KB

    • memory/5056-136-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5056-135-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5056-137-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5056-149-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5056-138-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5088-134-0x0000000002360000-0x000000000247B000-memory.dmp

      Filesize

      1.1MB