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Analysis

  • max time kernel
    143s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/07/2023, 12:43

General

  • Target

    264386-buildexe.exe

  • Size

    724KB

  • MD5

    b69360e7d321c9ffa0271177d05b3f75

  • SHA1

    6e13876fe3a1169f6020408f7dfef4afc629635a

  • SHA256

    6462d610702fa004d9bda6c05c9300571e65c4625ffe35208eecd4226b28b310

  • SHA512

    26ec3a25ad46c5d466c5b87ef1a688b3cddd25efebd77a02cf8c1d7c0d7cb0f581d9094891d4ec236b099ffcb6819ea919eef8bc2307bb27929af72a77a75abf

  • SSDEEP

    12288:59TWzqNtOFpTovLnFmaHy9GBJ0wxCOZ8z9lz457oFFanmh4ZpQsJC:ji+NtOcZbS9rZlM5Q+mOLQsE

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .agvv

  • offline_id

    IGjpno8dwAKJpBjbvlsxfyQXyNoBoo3dXUtMk6t1

  • 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-3OsGArf4HD 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: 0737JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.5

Botnet

75b38583a079a9212c1fa894fd1b945f

C2

https://steamcommunity.com/profiles/76561199520592470

https://t.me/motafan

Attributes
  • profile_id_v2

    75b38583a079a9212c1fa894fd1b945f

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/111.0

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).

  • 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.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\264386-buildexe.exe
    "C:\Users\Admin\AppData\Local\Temp\264386-buildexe.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1072
    • C:\Users\Admin\AppData\Local\Temp\264386-buildexe.exe
      "C:\Users\Admin\AppData\Local\Temp\264386-buildexe.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:312
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\aec6da40-24c0-4bd0-8dcf-7be4eebeacb2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4600
      • C:\Users\Admin\AppData\Local\Temp\264386-buildexe.exe
        "C:\Users\Admin\AppData\Local\Temp\264386-buildexe.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4676
        • C:\Users\Admin\AppData\Local\Temp\264386-buildexe.exe
          "C:\Users\Admin\AppData\Local\Temp\264386-buildexe.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3972
          • C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build2.exe
            "C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4964
            • C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build2.exe
              "C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4496
          • C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build3.exe
            "C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:456
            • 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:1964
  • 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:1928
    • 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:2724

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

    12cf3f7c5b0a343d46a960e36374432e

    SHA1

    c4385cb8e91123bbcee01892433bc8b0c3377167

    SHA256

    6dc7d2f12c7ed75825418011d67ecc0abb35ac3a65dc4582b9ecf8ee061bf901

    SHA512

    7c783a5771b810ff5925d4de6dbec8fd89ff8622cc13da40afc7df9f3f369f9e835b9b0ee84b7dcec0c8253e6c16371a36405e50ec214291944d2ddb36a036c2

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\572BF21E454637C9F000BE1AF9B1E1A9

    Filesize

    506B

    MD5

    477c585e2bb8225dac31bc8312d49a37

    SHA1

    c5b4974823b77597c4174a0d3e8bbda5a5853b75

    SHA256

    6a70891cb6fedaf18c90c57099d598474a6a56486c657ca8e22f33ebf928bf71

    SHA512

    04aa1aefe8628813747bebb98d30ba33b8b40ecd73cde3288b4b8c7f8583f63c56b5189be12c98cd6c1f48d4e1f27d13ba7f49cd95423e80423b2c5254f52bf3

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

    Filesize

    488B

    MD5

    4efd0219df93691abce07b6aa88a8042

    SHA1

    954ab2271bbc9ec6fa76f52bd86776d2988830d0

    SHA256

    2e489704309b8e3c1b0f590db8d1e2ddd93ea26ed7d93f4f0a5240568ef26343

    SHA512

    fb6184747c2e0246681e66a30e2a14c23e63c73d7153b5acf91fd695cde2915db9b1b496177c29f78e1335be3f8fa9c80aa486a3c73695d7fb6f09846dd39747

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\572BF21E454637C9F000BE1AF9B1E1A9

    Filesize

    248B

    MD5

    c1297d44594c51b344a8abe3f0f008ed

    SHA1

    0d4e1aa94d8a9827de96eec89fb5f052c214a0c9

    SHA256

    787440dd79a09d884849123d3c83e39d308f85ea6a9480dd8445144a66870cba

    SHA512

    8450eccfab7dcea3c2742650a3850d3c990549dbf55177577daa3b9daed550da02ab7c0cbdb474379b27ea166ce63f13a47dd4a501124be85c2612ee0dbccf61

  • C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build2.exe

    Filesize

    330KB

    MD5

    f11de7628c58b4cd0bc3647984edc296

    SHA1

    5aa2db4791acb3f007ebadf6cad9ff9c9ed23ec7

    SHA256

    e356f807c297edf59ba7b0e1e0eb2a2186cc02246ad4bbe8d6fa42c7383b46c7

    SHA512

    cc9dcbd92ca83840b33dd2cceffa446bc5b2052ba14246750233cf10ae0b21b7ae3e30192fe5a3ce186d786c8ecbe2d59a80739adae843644f1b56ac16d03d59

  • C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build2.exe

    Filesize

    330KB

    MD5

    f11de7628c58b4cd0bc3647984edc296

    SHA1

    5aa2db4791acb3f007ebadf6cad9ff9c9ed23ec7

    SHA256

    e356f807c297edf59ba7b0e1e0eb2a2186cc02246ad4bbe8d6fa42c7383b46c7

    SHA512

    cc9dcbd92ca83840b33dd2cceffa446bc5b2052ba14246750233cf10ae0b21b7ae3e30192fe5a3ce186d786c8ecbe2d59a80739adae843644f1b56ac16d03d59

  • C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build2.exe

    Filesize

    330KB

    MD5

    f11de7628c58b4cd0bc3647984edc296

    SHA1

    5aa2db4791acb3f007ebadf6cad9ff9c9ed23ec7

    SHA256

    e356f807c297edf59ba7b0e1e0eb2a2186cc02246ad4bbe8d6fa42c7383b46c7

    SHA512

    cc9dcbd92ca83840b33dd2cceffa446bc5b2052ba14246750233cf10ae0b21b7ae3e30192fe5a3ce186d786c8ecbe2d59a80739adae843644f1b56ac16d03d59

  • C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build2.exe

    Filesize

    330KB

    MD5

    f11de7628c58b4cd0bc3647984edc296

    SHA1

    5aa2db4791acb3f007ebadf6cad9ff9c9ed23ec7

    SHA256

    e356f807c297edf59ba7b0e1e0eb2a2186cc02246ad4bbe8d6fa42c7383b46c7

    SHA512

    cc9dcbd92ca83840b33dd2cceffa446bc5b2052ba14246750233cf10ae0b21b7ae3e30192fe5a3ce186d786c8ecbe2d59a80739adae843644f1b56ac16d03d59

  • C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\17ac3288-4735-460c-bbd4-87e8e915a5c6\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\aec6da40-24c0-4bd0-8dcf-7be4eebeacb2\264386-buildexe.exe

    Filesize

    724KB

    MD5

    b69360e7d321c9ffa0271177d05b3f75

    SHA1

    6e13876fe3a1169f6020408f7dfef4afc629635a

    SHA256

    6462d610702fa004d9bda6c05c9300571e65c4625ffe35208eecd4226b28b310

    SHA512

    26ec3a25ad46c5d466c5b87ef1a688b3cddd25efebd77a02cf8c1d7c0d7cb0f581d9094891d4ec236b099ffcb6819ea919eef8bc2307bb27929af72a77a75abf

  • 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/312-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/312-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/312-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/312-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/312-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1072-135-0x0000000002410000-0x000000000252B000-memory.dmp

    Filesize

    1.1MB

  • memory/3972-164-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3972-160-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3972-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3972-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3972-279-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3972-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3972-167-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3972-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3972-206-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3972-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4496-190-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4496-209-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4496-185-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4496-277-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4496-278-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4496-186-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4496-281-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4496-182-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4964-184-0x0000000002110000-0x0000000002172000-memory.dmp

    Filesize

    392KB