Analysis

  • max time kernel
    300s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    01-02-2024 04:59

General

  • Target

    cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe

  • Size

    834KB

  • MD5

    393ff21e0c8d0a8b32e005d2fdbc97db

  • SHA1

    771cab72d0be3164a6be638b515af36481e70cf4

  • SHA256

    cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658

  • SHA512

    09f80c7615faa84418b01a6b78c800e66c917999c366ba26dd28ff61735b9bb23c61024b1b3107cabfdd46aa8ce8973123536b79cf3e47ab9a554db4a14b2844

  • SSDEEP

    12288:0MhDTx3xk7WtKS2wnWRnSgB6kOyw8I6E7f0CbWdso0hS5yX7woTXIzSXG4:04Nl2LSZk1kQCbWdwS5yXJXeSv

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .cdcc

  • offline_id

    LBxKKiegnAy53rpqH3Pj2j46vwldiEt9kqHSuMt1

  • payload_url

    http://brusuax.com/dl/build2.exe

    http://habrafa.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-iVcrVFVRqu Price of private key and decrypt software is $1999. Discount 50% available if you contact us first 72 hours, that's price for you is $999. 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: 0846ASdw

rsa_pubkey.plain

Extracted

Family

vidar

Version

7.6

Botnet

1b9d7ec5a25ab9d78c31777a0016a097

C2

https://t.me/tvrugrats

https://steamcommunity.com/profiles/76561199627279110

Attributes
  • profile_id_v2

    1b9d7ec5a25ab9d78c31777a0016a097

Signatures

  • Detect Vidar Stealer 5 IoCs
  • Detected Djvu ransomware 14 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 14 IoCs
  • Loads dropped DLL 11 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 9 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe
    "C:\Users\Admin\AppData\Local\Temp\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Users\Admin\AppData\Local\Temp\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe
      "C:\Users\Admin\AppData\Local\Temp\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2192
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\15bec0f6-c3ba-4db5-b552-b443990ce2a1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2976
      • C:\Users\Admin\AppData\Local\Temp\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe
        "C:\Users\Admin\AppData\Local\Temp\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2316
        • C:\Users\Admin\AppData\Local\Temp\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe
          "C:\Users\Admin\AppData\Local\Temp\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2720
          • C:\Users\Admin\AppData\Local\2749ae1e-1301-4a16-bd28-2eee80e560ab\build2.exe
            "C:\Users\Admin\AppData\Local\2749ae1e-1301-4a16-bd28-2eee80e560ab\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2376
            • C:\Users\Admin\AppData\Local\2749ae1e-1301-4a16-bd28-2eee80e560ab\build2.exe
              "C:\Users\Admin\AppData\Local\2749ae1e-1301-4a16-bd28-2eee80e560ab\build2.exe"
              6⤵
              • Executes dropped EXE
              • Modifies system certificate store
              • Suspicious use of WriteProcessMemory
              PID:1948
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 1440
                7⤵
                • Loads dropped DLL
                • Program crash
                PID:1012
          • C:\Users\Admin\AppData\Local\2749ae1e-1301-4a16-bd28-2eee80e560ab\build3.exe
            "C:\Users\Admin\AppData\Local\2749ae1e-1301-4a16-bd28-2eee80e560ab\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1096
            • C:\Users\Admin\AppData\Local\2749ae1e-1301-4a16-bd28-2eee80e560ab\build3.exe
              "C:\Users\Admin\AppData\Local\2749ae1e-1301-4a16-bd28-2eee80e560ab\build3.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:2488
              • 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"
                7⤵
                • Creates scheduled task(s)
                PID:1968
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {EAC258CE-16A4-40CE-A8F7-A17601312050} S-1-5-21-2444714103-3190537498-3629098939-1000:DJLAPDMX\Admin:Interactive:[1]
    1⤵
      PID:2884
      • 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 SetThreadContext
        PID:2812
        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          3⤵
          • Executes dropped EXE
          PID:2684
          • 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"
            4⤵
            • Creates scheduled task(s)
            PID:2604
      • 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 SetThreadContext
        PID:1116
        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          3⤵
          • Executes dropped EXE
          PID:2772
      • 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 SetThreadContext
        PID:2056
        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          3⤵
          • Executes dropped EXE
          PID:2984
      • 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 SetThreadContext
        PID:2456
        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          3⤵
          • Executes dropped EXE
          PID:1888
      • 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 SetThreadContext
        PID:2556
        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          3⤵
          • Executes dropped EXE
          PID:760

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

      Filesize

      1KB

      MD5

      8112ab2a9d7578692e66734917d00015

      SHA1

      5dc1f7cb2c66c925d195fb98784917d108a001dd

      SHA256

      919561b1927726f5218e79f21184c4bf7117db4466686fc93d3d5dbc1380033b

      SHA512

      538f1f36b44d628d2ade163cc40deb58b50cb7fbd56019d9526c8233c30771db8542ed5786d311322dfd2e9d44e979da9513c4a0bbc7416b47bb7beca90013d1

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

      Filesize

      724B

      MD5

      8202a1cd02e7d69597995cabbe881a12

      SHA1

      8858d9d934b7aa9330ee73de6c476acf19929ff6

      SHA256

      58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

      SHA512

      97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

      Filesize

      410B

      MD5

      72f72ed6eeaf6e74dda6dbc5c052c4ab

      SHA1

      aeb207a571cfbc9e777f13371c67f3d07e794881

      SHA256

      a9421007319ddec9a8aa2f77b6f5937258f813febfdbb4dd0f64ea8f9b4d1eb7

      SHA512

      b73f71cd0d9e93fe797924c9f370391ce8e0974657685f68b3db856f996eef3841fa4cbc9976410b725e3a863543668733ca38db6edaeb0d22667a31b24ea09d

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

      Filesize

      344B

      MD5

      58681ddc745678cf24d6b5eea54d4b46

      SHA1

      8c76f3d9663bfa7dae22dd632a3d19754264870f

      SHA256

      7f32e21f1d0392d08c417f474d3c01918aebd3485a193399b84d52a1ec161bb1

      SHA512

      c07917479ad6d59de0b9b1eef11c1d134602bc768ca12243948e859c97e32ee042987ee1a0a3fd34531bf222c750b15a5c71188e170cb44cb7f92122420a539b

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

      Filesize

      344B

      MD5

      2ac77fb80cfbecc11949b74fad8a734b

      SHA1

      9cbd0bafbdde98e2d79205fa2b06ccddb7eca512

      SHA256

      be89fa1704b6179a705c04d3a9c60393fceb3b69f62784c91ee9f75ed1b69cf0

      SHA512

      b558cf1010ab53f5bf5c5dd819110c6221ad22f5baa8aab1f54d48140af2178da720c90ad86347e0c8a72594580a78f766bd3fd8ba248f42b8065e906a1b0392

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

      Filesize

      392B

      MD5

      d21cbbdc3bd69184925cfbc5e3de428d

      SHA1

      3cbe72ca7a405db8cd2c2f67cd59287d8dafaf5c

      SHA256

      bd3d27647db598d557802412cf0cd8d6be85d911d63c6c93f21b42167fba5dc9

      SHA512

      f1587de43dfc704cb6c889594f468570bf82078cff3fc162b768ae054bc6e3c27c36a54f6d4a0a30d6779594795e0cf68c26ad9bb3f7c889d8e0fbeec01ea89b

    • C:\Users\Admin\AppData\Local\15bec0f6-c3ba-4db5-b552-b443990ce2a1\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe

      Filesize

      834KB

      MD5

      393ff21e0c8d0a8b32e005d2fdbc97db

      SHA1

      771cab72d0be3164a6be638b515af36481e70cf4

      SHA256

      cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658

      SHA512

      09f80c7615faa84418b01a6b78c800e66c917999c366ba26dd28ff61735b9bb23c61024b1b3107cabfdd46aa8ce8973123536b79cf3e47ab9a554db4a14b2844

    • C:\Users\Admin\AppData\Local\Temp\Cab5EC3.tmp

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar7418.tmp

      Filesize

      171KB

      MD5

      9c0c641c06238516f27941aa1166d427

      SHA1

      64cd549fb8cf014fcd9312aa7a5b023847b6c977

      SHA256

      4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

      SHA512

      936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

    • \Users\Admin\AppData\Local\2749ae1e-1301-4a16-bd28-2eee80e560ab\build2.exe

      Filesize

      385KB

      MD5

      63e4a9cd7a8b37335b5f18cefc5dd9d2

      SHA1

      c781a30935afc452b108cc78724b60f389b78874

      SHA256

      c1e75efde3fd1da605135e5c3ffab0073299c80632d136f8eeba9d4a7c98c70f

      SHA512

      3818b5966938704c5830acb5426db7791f6ae476853248d8984b1aff35a6722a0684bea54a53ef6ded1f301f6de9ed044d45f007457a9c0f3a7ea3afc7bf0ecc

    • \Users\Admin\AppData\Local\2749ae1e-1301-4a16-bd28-2eee80e560ab\build3.exe

      Filesize

      299KB

      MD5

      41b883a061c95e9b9cb17d4ca50de770

      SHA1

      1daf96ec21d53d9a4699cea9b4db08cda6fbb5ad

      SHA256

      fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408

      SHA512

      cdd1bb3a36182575cd715a52815765161eeaa3849e72c1c2a9a4e84cc43af9f8ec4997e642702bb3de41f162d2e8fd8717f6f8302bba5306821ee4d155626319

    • memory/1096-230-0x00000000008A2000-0x00000000008B3000-memory.dmp

      Filesize

      68KB

    • memory/1096-232-0x00000000002A0000-0x00000000002A4000-memory.dmp

      Filesize

      16KB

    • memory/1096-242-0x00000000002A0000-0x00000000002A4000-memory.dmp

      Filesize

      16KB

    • memory/1116-280-0x0000000000250000-0x0000000000350000-memory.dmp

      Filesize

      1024KB

    • memory/1948-79-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1948-238-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1948-78-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1948-71-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1948-73-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1996-0-0x0000000000230000-0x00000000002C1000-memory.dmp

      Filesize

      580KB

    • memory/1996-7-0x0000000000230000-0x00000000002C1000-memory.dmp

      Filesize

      580KB

    • memory/1996-1-0x0000000000230000-0x00000000002C1000-memory.dmp

      Filesize

      580KB

    • memory/1996-3-0x0000000001E40000-0x0000000001F5B000-memory.dmp

      Filesize

      1.1MB

    • memory/2056-304-0x0000000000920000-0x0000000000A20000-memory.dmp

      Filesize

      1024KB

    • memory/2192-27-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2192-9-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2192-8-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2192-5-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2192-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2316-28-0x0000000001C30000-0x0000000001CC1000-memory.dmp

      Filesize

      580KB

    • memory/2316-30-0x0000000001C30000-0x0000000001CC1000-memory.dmp

      Filesize

      580KB

    • memory/2376-77-0x0000000000230000-0x0000000000260000-memory.dmp

      Filesize

      192KB

    • memory/2376-76-0x00000000005C0000-0x00000000005DB000-memory.dmp

      Filesize

      108KB

    • memory/2456-332-0x00000000008C0000-0x00000000009C0000-memory.dmp

      Filesize

      1024KB

    • memory/2488-235-0x0000000000400000-0x0000000000406000-memory.dmp

      Filesize

      24KB

    • memory/2488-225-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2488-233-0x0000000000400000-0x0000000000406000-memory.dmp

      Filesize

      24KB

    • memory/2488-227-0x0000000000400000-0x0000000000406000-memory.dmp

      Filesize

      24KB

    • memory/2556-361-0x00000000009C0000-0x0000000000AC0000-memory.dmp

      Filesize

      1024KB

    • memory/2720-35-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2720-125-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2720-80-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2720-57-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2720-56-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2720-54-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2720-49-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2720-50-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2720-36-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2812-248-0x0000000000970000-0x0000000000A70000-memory.dmp

      Filesize

      1024KB