Analysis

  • max time kernel
    50s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2023, 06:56

General

  • Target

    1dba6d82e5bfaf48d6648ffb5251c812.exe

  • Size

    806KB

  • MD5

    1dba6d82e5bfaf48d6648ffb5251c812

  • SHA1

    850e12cb91891996bf5bd30e26a2001cf11f080f

  • SHA256

    e107e323b7486492537fb84f05d05cbc7c9838c2c6ce0910a8fd1ad756bad32e

  • SHA512

    e82d507af1883b75df0275d00125ed94a8cdedeba22557522892eeae7ee518f1ec86e0785850b40cf3120c8ea094164571714b9aef48125e1a0f8fbea42dbc28

  • SSDEEP

    12288:z7coT61DRi8/Hp2agqXhsiFq2oG67agyCkFEmV2BJ+vsB6DKTshRShPMqQli:zoU6pgop2sh1oGoeCTmWJ4VDKIhesi

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\1dba6d82e5bfaf48d6648ffb5251c812.exe
    "C:\Users\Admin\AppData\Local\Temp\1dba6d82e5bfaf48d6648ffb5251c812.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Users\Admin\AppData\Local\Temp\1dba6d82e5bfaf48d6648ffb5251c812.exe
      "C:\Users\Admin\AppData\Local\Temp\1dba6d82e5bfaf48d6648ffb5251c812.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2028
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\c26dff9d-d2d4-4110-bbb4-96a32f9fbb24" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:608
      • C:\Users\Admin\AppData\Local\Temp\1dba6d82e5bfaf48d6648ffb5251c812.exe
        "C:\Users\Admin\AppData\Local\Temp\1dba6d82e5bfaf48d6648ffb5251c812.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:696
        • C:\Users\Admin\AppData\Local\Temp\1dba6d82e5bfaf48d6648ffb5251c812.exe
          "C:\Users\Admin\AppData\Local\Temp\1dba6d82e5bfaf48d6648ffb5251c812.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:396
          • C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build2.exe
            "C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1644
            • C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build2.exe
              "C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build2.exe"
              6⤵
              • Executes dropped EXE
              PID:1604
          • C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build3.exe
            "C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1004
            • 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:1052
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {9DE8CB5E-203F-4A23-A58F-2876DF3F42B7} S-1-5-21-2292972927-2705560509-2768824231-1000:GRXNNIIE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1420
    • 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:1156
      • 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:1376

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\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

          Filesize

          1KB

          MD5

          7c56401cb6bd1ae402e06f0fe35f81c4

          SHA1

          b82bbb9fa39266796cafcd308ef4300fc92e3399

          SHA256

          0c58c7bc18d38a3096da6f3575f1c6f8d79b69382d8e89bb5fca917d3cdb7f65

          SHA512

          2ea607c2dc04c8ef34ecb4c4bd297e0f0882b179303565863d1745172322133b78186fa04334e82c135e25fd717719ceec917f49682a4eac37034ea87bb2b6f3

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

          Filesize

          488B

          MD5

          7db961988c0a6688314626baf6fd95ab

          SHA1

          8d0b9d17600de28f5083c0f9830ad2c8d086f28b

          SHA256

          2a3ad4fee61c97955ab81677fbdbb975a06348498a42a6b3c70bfba808cdf089

          SHA512

          2c3c29c0f800cc6b83cf67a6d5c6f6084a2b780bdd2eae4247305db6ce39f69a0606118d73f222a688d2e07647f5d66a22c8e5268c0471fa5131bcafb5bfc5c6

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

          Filesize

          342B

          MD5

          f3b31161a5e43ec6735ee79bd367964d

          SHA1

          aeade2b4685b5561e57ad4b59e3ea32b6d60d2d7

          SHA256

          6d8b05e91071e7eab22378f9bd2587428878a0a50cae994449d72eeebdc4fa39

          SHA512

          af5f73b0f03c93f7825202b525b280ca50a0d972adf40f12d3e65012fa0ab5e8bf8017b49a0fe008e8292654afadd370718cd57f712bc53d8e626ceff7657515

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

          Filesize

          482B

          MD5

          11abb16d9e39a895b30c794ee5927923

          SHA1

          066aed80816349b150765505f79c0eb907b938af

          SHA256

          6dadd79f640a3a379c54037f0d417ed24c98dcd8305f7c9c963a6ed88220f021

          SHA512

          4f014dda109f035ecf34b861f1d245b1361961a5fc3751cdc9bafbb6f3fa754b84d48d065ffef60ca2d7111e0b2c93a2db10eb0e1b8ec1f641f7bc85f674fc24

        • C:\Users\Admin\AppData\Local\c26dff9d-d2d4-4110-bbb4-96a32f9fbb24\1dba6d82e5bfaf48d6648ffb5251c812.exe

          Filesize

          806KB

          MD5

          1dba6d82e5bfaf48d6648ffb5251c812

          SHA1

          850e12cb91891996bf5bd30e26a2001cf11f080f

          SHA256

          e107e323b7486492537fb84f05d05cbc7c9838c2c6ce0910a8fd1ad756bad32e

          SHA512

          e82d507af1883b75df0275d00125ed94a8cdedeba22557522892eeae7ee518f1ec86e0785850b40cf3120c8ea094164571714b9aef48125e1a0f8fbea42dbc28

        • C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\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\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • \Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build2.exe

          Filesize

          429KB

          MD5

          8c14bb1505244971374a88f37a4ec22a

          SHA1

          cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

          SHA256

          f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

          SHA512

          5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

        • \Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • \Users\Admin\AppData\Local\feeb935e-0eab-4e2e-ae5d-bc1b08e45a9a\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • memory/396-80-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/396-73-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/396-101-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/696-67-0x0000000000220000-0x00000000002B2000-memory.dmp

          Filesize

          584KB

        • memory/696-71-0x0000000000220000-0x00000000002B2000-memory.dmp

          Filesize

          584KB

        • memory/1604-100-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/1604-98-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/1604-93-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/1644-99-0x0000000000480000-0x00000000004CC000-memory.dmp

          Filesize

          304KB

        • memory/1644-97-0x000000000028B000-0x00000000002B8000-memory.dmp

          Filesize

          180KB

        • memory/1908-57-0x0000000004830000-0x00000000048C2000-memory.dmp

          Filesize

          584KB

        • memory/1908-59-0x00000000048D0000-0x00000000049EB000-memory.dmp

          Filesize

          1.1MB

        • memory/1908-54-0x0000000004830000-0x00000000048C2000-memory.dmp

          Filesize

          584KB

        • memory/2028-60-0x00000000762F1000-0x00000000762F3000-memory.dmp

          Filesize

          8KB

        • memory/2028-61-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2028-62-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2028-55-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2028-66-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB