Analysis

  • max time kernel
    53s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2023, 07:01

General

  • Target

    2db3f2bf2b76bb91fbabbf618e17d90a.exe

  • Size

    799KB

  • MD5

    2db3f2bf2b76bb91fbabbf618e17d90a

  • SHA1

    e64a4ffac534ce74196ff40a25cd3bd587cf95e3

  • SHA256

    73604deb771fd339cb582fd267fb9aade4faabd4aa712719dfdf447ba9ad6f24

  • SHA512

    a163ab1052093bb188a03db70ffc97603dbba9d801562f910a2a5fdcf45e72452e905493135c86ca41f97777b2506586c97669a1a181dfbdc313f8f593c2dbf6

  • SSDEEP

    24576:z8Bn1EPZwOkLQMIrOVY++FUdoaWmUG+bS:z8BGPuOyQ5i5+K2dGH

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .bpsm

  • offline_id

    pu5TgkFNAS5fWQ2rCzdamsmMrE5wSlTupdTI0pt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://spaceris.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-rmxjMZAZBJ 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: 0626JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

1.8

Botnet

19

C2

https://t.me/year2023start

https://steamcommunity.com/profiles/76561199467421923

Attributes
  • profile_id

    19

Signatures

  • Detected Djvu ransomware 9 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 4 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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.

  • 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2db3f2bf2b76bb91fbabbf618e17d90a.exe
    "C:\Users\Admin\AppData\Local\Temp\2db3f2bf2b76bb91fbabbf618e17d90a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:832
    • C:\Users\Admin\AppData\Local\Temp\2db3f2bf2b76bb91fbabbf618e17d90a.exe
      "C:\Users\Admin\AppData\Local\Temp\2db3f2bf2b76bb91fbabbf618e17d90a.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:952
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\c6cae283-403b-4854-a999-8a5e0031062b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:556
      • C:\Users\Admin\AppData\Local\Temp\2db3f2bf2b76bb91fbabbf618e17d90a.exe
        "C:\Users\Admin\AppData\Local\Temp\2db3f2bf2b76bb91fbabbf618e17d90a.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1532
        • C:\Users\Admin\AppData\Local\Temp\2db3f2bf2b76bb91fbabbf618e17d90a.exe
          "C:\Users\Admin\AppData\Local\Temp\2db3f2bf2b76bb91fbabbf618e17d90a.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1504
          • C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build2.exe
            "C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1624
            • C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build2.exe
              "C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build2.exe"
              6⤵
              • Executes dropped EXE
              PID:1688
          • C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build3.exe
            "C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1728
            • 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:1332
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {DCF8BBF9-2D23-476A-A021-0F26E69A9DFF} S-1-5-21-3406023954-474543476-3319432036-1000:VUIIVLGQ\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1064
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:596
      • 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"
        3⤵
        • Creates scheduled task(s)
        PID:1524

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\c6cae283-403b-4854-a999-8a5e0031062b\2db3f2bf2b76bb91fbabbf618e17d90a.exe

          Filesize

          799KB

          MD5

          2db3f2bf2b76bb91fbabbf618e17d90a

          SHA1

          e64a4ffac534ce74196ff40a25cd3bd587cf95e3

          SHA256

          73604deb771fd339cb582fd267fb9aade4faabd4aa712719dfdf447ba9ad6f24

          SHA512

          a163ab1052093bb188a03db70ffc97603dbba9d801562f910a2a5fdcf45e72452e905493135c86ca41f97777b2506586c97669a1a181dfbdc313f8f593c2dbf6

        • C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\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

        • \Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • \Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • \Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • \Users\Admin\AppData\Local\ddfb7e43-dd9f-47ec-b9db-5cb46c2eccc8\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • memory/832-54-0x0000000004520000-0x00000000045B1000-memory.dmp

          Filesize

          580KB

        • memory/832-59-0x00000000045C0000-0x00000000046DB000-memory.dmp

          Filesize

          1.1MB

        • memory/832-58-0x0000000004520000-0x00000000045B1000-memory.dmp

          Filesize

          580KB

        • memory/952-66-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/952-62-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/952-55-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/952-61-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/952-60-0x0000000075701000-0x0000000075703000-memory.dmp

          Filesize

          8KB

        • memory/1504-74-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1504-73-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1532-71-0x00000000002B0000-0x0000000000341000-memory.dmp

          Filesize

          580KB

        • memory/1532-67-0x00000000002B0000-0x0000000000341000-memory.dmp

          Filesize

          580KB

        • memory/1624-93-0x0000000000220000-0x000000000026C000-memory.dmp

          Filesize

          304KB

        • memory/1624-92-0x000000000063B000-0x0000000000668000-memory.dmp

          Filesize

          180KB

        • memory/1688-91-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/1688-94-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/1688-84-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB