Analysis

  • max time kernel
    296s
  • max time network
    300s
  • platform
    windows10-1703_x64
  • resource
    win10-20231215-en
  • resource tags

    arch:x64arch:x86image:win10-20231215-enlocale:en-usos:windows10-1703-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 6 IoCs
  • 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
  • Executes dropped EXE 13 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 8 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.

  • 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:4064
    • 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:4348
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\c2190e99-582e-4cde-a4cc-21346672fcc9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4536
      • 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:660
        • C:\Users\Admin\AppData\Local\Temp\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe
          "C:\Users\Admin\AppData\Local\Temp\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4428
          • C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build2.exe
            "C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:932
          • C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build3.exe
            "C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3396
            • C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build3.exe
              "C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build3.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:1752
              • 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:4160
  • C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build2.exe
    "C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build2.exe"
    1⤵
    • Executes dropped EXE
    PID:2440
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2440 -s 2088
      2⤵
      • Program crash
      PID:4556
  • 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 SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1824
    • 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:1408
      • 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:1856
  • 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 SetThreadContext
    PID:2020
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      PID:3832
  • 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 SetThreadContext
    PID:4856
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      PID:1108
  • 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 SetThreadContext
    PID:4616
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      PID:4172
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    PID:2348

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

    66a4bb0894cce2ac070bfa7dabfb474b

    SHA1

    0f15559dc9a73872a3c3ad5fcbb377f63639a91a

    SHA256

    32c107f6440a9bae48086283a54140e6aa4e80921c2ea83c64a54a086775722b

    SHA512

    aa8d1277b7f0950492670ae0d791d425d799911c8fc04076b4eed61f1cc9394e9b80d6f900f6050ada9a05bc1ac6d2bb9ab61674a9cf1e8911fa861cec69237b

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

    Filesize

    392B

    MD5

    afe7e8f26fe23915409d00b2ae8b97f8

    SHA1

    204018fe6876b1ce80ea6dc94a0d40268613f15e

    SHA256

    be67cf5c30945449616003b81f9e01dd8c87e27ac643b2c99fcde00730f0c9dc

    SHA512

    e93a876157a25e587e968c80c24fb5ab2e6eeb8cb81cd5e86fe67ac34a05c3c1acd63121937f0c9fa0047b3868f500b517b3702dc7fc2c8eb12b7d7cad0c6ae0

  • C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build2.exe

    Filesize

    158KB

    MD5

    b1fa72f70452c75de93926885eb760ba

    SHA1

    4a4e7deee64378b5b3678ad5fa14f3563cfea33e

    SHA256

    c380fd07b4dd8fc57ff52f15ef7daadb551036b1fa2b90bcdb2c7cf2f9955669

    SHA512

    62b8c32a8ef1d9e6590ab25a1c7f4af76f8072ca85f4f2f0c898c90ffe08cecdf6bb0f08dde37035e5c2aa8fa0132a455a738be5e86409c9a60707e8d73dd4fe

  • C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build2.exe

    Filesize

    145KB

    MD5

    254fca06e8e5a018fa2b9bf2e84c0681

    SHA1

    36418e73d717f1c83a2fd44ff0903f0a51caacc6

    SHA256

    acd65badb8b15bf0a4acbbec12e92f459916c3244e232b9f95750b63c047a4a0

    SHA512

    e382c68357b9f266eecafaefa80713bed04ca7ffa3c22c1f2250d5332d316999cc3d3fa1db473f16737b23a4ab54639d972d7ebda5972d2aede043613007cb5f

  • C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build2.exe

    Filesize

    78KB

    MD5

    5529f22ce89618040f25b39a1da96e28

    SHA1

    e09a5ff4c85c60aeeb0c0dd65ce863d3d2380cdf

    SHA256

    da6375ab097452d2bfdbddf7a2deefa894c65ab48a2310add6f33bf276bcf84e

    SHA512

    7e25ed37547749577a4dd988642bd8d5ee4d48ce6dcfaf2a614ede72226eae5f680a37e758f9fccfce51bdf863c677d57be528d5f8e5d2e2e2b09b915d3ae4a2

  • C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build3.exe

    Filesize

    169KB

    MD5

    aef8d00abb28d12a106effc3f416d2c4

    SHA1

    5ef119bc7cd4e7687a7c6e1d65cdf57c44c0083b

    SHA256

    07aa9add49f936314d3b466f25d9bb96fb613e024966eff924569657703017ae

    SHA512

    0307f4eb9355b4d5714270e9938d5199ab8b42a686c737b157bf381e9db0ed8bccdf0e21316f0122fd8c2b3b625a2936687626347d3fdf56079c9f5ce1b67ff8

  • C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build3.exe

    Filesize

    237KB

    MD5

    cd31264b600822d8aa25413b59cd2386

    SHA1

    b71411ed22af4040471af45faa88846ecd5013ae

    SHA256

    22759990b409a335c828024d0fb17a2efef0187477f16897fd9e6b56a1682ff2

    SHA512

    d964f3aee4e49bc13f2a5827e2bede825328ddcb498c415a104fdc5322943302ef41cf31c060b8768da1d6cba2fffe0a936855e3fcff73aab4f1af3f2f56955a

  • C:\Users\Admin\AppData\Local\c10fd8dd-e8b3-4618-bff5-5c0eddba735f\build3.exe

    Filesize

    299KB

    MD5

    41b883a061c95e9b9cb17d4ca50de770

    SHA1

    1daf96ec21d53d9a4699cea9b4db08cda6fbb5ad

    SHA256

    fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408

    SHA512

    cdd1bb3a36182575cd715a52815765161eeaa3849e72c1c2a9a4e84cc43af9f8ec4997e642702bb3de41f162d2e8fd8717f6f8302bba5306821ee4d155626319

  • C:\Users\Admin\AppData\Local\c2190e99-582e-4cde-a4cc-21346672fcc9\cc9f95a4bb127cda832c37ba53dc86b8d21b67b0793d3d4039e2f2459fd36658.exe

    Filesize

    101KB

    MD5

    925694a5819c80fe9c0b22719018fe43

    SHA1

    93262d0b94e3da7e4881f368a4b3794de450e4b4

    SHA256

    99f38b03141839e4191ebadf3a44fd58d429f83709dc426297d69202b6a3aa91

    SHA512

    7ed32426841fe6519e63f81743bb3c03f51b7087187a38bd8046c97b5d1bbbb29d3a1f968be191d785a369ec4c993b1722aecb9d7537017e71386c2aef4c9da2

  • memory/660-21-0x0000000002040000-0x00000000020D3000-memory.dmp

    Filesize

    588KB

  • memory/932-46-0x0000000000690000-0x0000000000790000-memory.dmp

    Filesize

    1024KB

  • memory/932-47-0x00000000005F0000-0x0000000000620000-memory.dmp

    Filesize

    192KB

  • memory/1752-70-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/1752-75-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/1752-77-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/1752-78-0x0000000000410000-0x00000000004D5000-memory.dmp

    Filesize

    788KB

  • memory/1824-96-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

    Filesize

    1024KB

  • memory/2020-123-0x00000000009D0000-0x0000000000AD0000-memory.dmp

    Filesize

    1024KB

  • memory/2440-66-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2440-51-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2440-52-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2440-48-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/3396-74-0x0000000000810000-0x0000000000814000-memory.dmp

    Filesize

    16KB

  • memory/3396-73-0x0000000000840000-0x0000000000940000-memory.dmp

    Filesize

    1024KB

  • memory/3832-122-0x0000000000410000-0x0000000000411000-memory.dmp

    Filesize

    4KB

  • memory/4064-2-0x0000000002270000-0x000000000238B000-memory.dmp

    Filesize

    1.1MB

  • memory/4064-1-0x00000000021D0000-0x0000000002270000-memory.dmp

    Filesize

    640KB

  • memory/4348-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4428-63-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4428-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4428-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4428-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4428-30-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4428-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4428-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4428-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4428-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4428-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4616-174-0x00000000009AE000-0x00000000009BE000-memory.dmp

    Filesize

    64KB

  • memory/4856-148-0x00000000008D0000-0x00000000009D0000-memory.dmp

    Filesize

    1024KB