Analysis

  • max time kernel
    108s
  • max time network
    110s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2023, 06:56

General

  • Target

    b34a693e486f217e7c360c93172619fa.exe

  • Size

    799KB

  • MD5

    b34a693e486f217e7c360c93172619fa

  • SHA1

    227197f9958681327ab817e67f0a29e3e5d54c09

  • SHA256

    8d826c169a854f9b36f0635e8e1a2f27989d4e35dcab2fafa9d0b82b7621149d

  • SHA512

    57aa9c81f27a3fa66394e48cd2a08a64d5bfa9c719fc72146e50005d4d6f898d0827f5c8165b2fd2526a503d4fef410ac4cfa6da0d56080bf056fbb814ecbd7d

  • SSDEEP

    24576:rwe7W12QK8nDGffydauOvcApIqYEU/E0i+sKS:rwFe8ifyQZ3U/RixX

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 10 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 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b34a693e486f217e7c360c93172619fa.exe
    "C:\Users\Admin\AppData\Local\Temp\b34a693e486f217e7c360c93172619fa.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1616
    • C:\Users\Admin\AppData\Local\Temp\b34a693e486f217e7c360c93172619fa.exe
      "C:\Users\Admin\AppData\Local\Temp\b34a693e486f217e7c360c93172619fa.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1172
      • 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:396
      • C:\Users\Admin\AppData\Local\Temp\b34a693e486f217e7c360c93172619fa.exe
        "C:\Users\Admin\AppData\Local\Temp\b34a693e486f217e7c360c93172619fa.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1448
        • C:\Users\Admin\AppData\Local\Temp\b34a693e486f217e7c360c93172619fa.exe
          "C:\Users\Admin\AppData\Local\Temp\b34a693e486f217e7c360c93172619fa.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1948
          • C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build2.exe
            "C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1624
            • C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build2.exe
              "C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build2.exe"
              6⤵
              • Executes dropped EXE
              PID:1788
          • C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build3.exe
            "C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\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:2016
  • 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:1532
    • 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:540
      • 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:1844

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2KB

          MD5

          411cd537dcecbf901759b8e6c1bdb076

          SHA1

          655df9870867a1760ad1a2c967b330c61767437a

          SHA256

          aa9e441c6cf813efd9ba76fe4ae52d884a5c7d222ed221903c42f09bc14eb7db

          SHA512

          ea780f875c86f8694f67d236a0af066b952862356edb681375e6c387103a91ce085345359f8fe83dd630d310ee6b7637512e5868951c4c257daa411ab9c03e71

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

          Filesize

          61KB

          MD5

          fc4666cbca561e864e7fdf883a9e6661

          SHA1

          2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

          SHA256

          10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

          SHA512

          c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

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

          Filesize

          488B

          MD5

          e75519e043aa5e4c2314799b806765e9

          SHA1

          fcb8417454e559678ac89b040bc37432224718a0

          SHA256

          71b42f9f1ea06c34aeca6c34b73d1fb01ec2c11f4383cd15d4e012ae42d723f6

          SHA512

          57f6c5710a1a7db40f7bf35a462307ee59110c20d1642fdc717a44b637f9f864bcbd64ddde99f71c9e7f69cf24e49f35ad50114d57be340a720c05a5d4be1071

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          342B

          MD5

          3e25c17466001d44ab9ed0dd05c959cd

          SHA1

          da7fb75abfdc790a7c0582725c7527928371012e

          SHA256

          9098b645a4db5ee3f31ab95ab6b1570b74a1ecca73458ac030bee69f7319a649

          SHA512

          2588c33b59c20323a08d8d2295f9ab86a41a6bc28cc43708f993b2d20b5e9c98e1dc9bbc3ad1fabacbae34ae94b8caec119352890e6a5d8626944c78189a0d08

        • C:\Users\Admin\AppData\Local\c6cae283-403b-4854-a999-8a5e0031062b\b34a693e486f217e7c360c93172619fa.exe

          Filesize

          799KB

          MD5

          b34a693e486f217e7c360c93172619fa

          SHA1

          227197f9958681327ab817e67f0a29e3e5d54c09

          SHA256

          8d826c169a854f9b36f0635e8e1a2f27989d4e35dcab2fafa9d0b82b7621149d

          SHA512

          57aa9c81f27a3fa66394e48cd2a08a64d5bfa9c719fc72146e50005d4d6f898d0827f5c8165b2fd2526a503d4fef410ac4cfa6da0d56080bf056fbb814ecbd7d

        • C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\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\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • \Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • \Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • \Users\Admin\AppData\Local\c9c9f926-6786-4402-b1a5-e9b8d7264e71\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • memory/1172-62-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1172-66-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1172-61-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1172-60-0x0000000075701000-0x0000000075703000-memory.dmp

          Filesize

          8KB

        • memory/1172-55-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1448-71-0x0000000002CC0000-0x0000000002D52000-memory.dmp

          Filesize

          584KB

        • memory/1448-67-0x0000000002CC0000-0x0000000002D52000-memory.dmp

          Filesize

          584KB

        • memory/1616-54-0x00000000002F0000-0x0000000000382000-memory.dmp

          Filesize

          584KB

        • memory/1616-59-0x0000000004560000-0x000000000467B000-memory.dmp

          Filesize

          1.1MB

        • memory/1616-58-0x00000000002F0000-0x0000000000382000-memory.dmp

          Filesize

          584KB

        • memory/1624-95-0x00000000005EB000-0x0000000000618000-memory.dmp

          Filesize

          180KB

        • memory/1624-97-0x0000000000260000-0x00000000002AC000-memory.dmp

          Filesize

          304KB

        • memory/1788-96-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/1788-91-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/1788-98-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/1948-99-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1948-78-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1948-73-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB