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Resubmissions

31/12/2023, 22:42

231231-2m6ykafdhm 10

31/12/2023, 22:35

231231-2hqqsafdap 10

Analysis

  • max time kernel
    108s
  • max time network
    167s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 22:42

General

  • Target

    e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe

  • Size

    690KB

  • MD5

    36172786193e5f7a14f53d687ff81193

  • SHA1

    c000948357737a3efa4d141e4bb7439aed41abb5

  • SHA256

    e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2

  • SHA512

    e9fc808b1b48aab02aad0574bbb71b8d4815a19a0c03009e9c5e2bcedfc6320ffaa8aa040fc1562aa8be5ac2d19d9a5c44b8344147af0236ad2ce54bc5e2c12e

  • SSDEEP

    12288:PQ4Hnb0GvoG5VfM93lbDOKOoRjDgptHZQ8er2wieqcgqAwXEppmubS:o6nIGvoMVwOKjtgpt6BVJAwEpI

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .cdqw

  • offline_id

    mMsRxMUuXypapZbGOAfxD9pczHmW8zVRP7Pgjwt1

  • payload_url

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

    http://zexeq.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-99MNqXMrdS 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: 0840ASdw

rsa_pubkey.plain

Signatures

  • Detect Vidar Stealer 8 IoCs
  • Detected Djvu ransomware 15 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
  • 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
    "C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
      "C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\dc9bd6c5-9ff3-4a22-ae09-dc9c04badd7a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2840
      • C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
        "C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2844
        • C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
          "C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2612
          • C:\Users\Admin\AppData\Local\154e014c-238f-4fb0-bce1-c3a702b4c5f2\build2.exe
            "C:\Users\Admin\AppData\Local\154e014c-238f-4fb0-bce1-c3a702b4c5f2\build2.exe"
            5⤵
              PID:396
              • C:\Users\Admin\AppData\Local\154e014c-238f-4fb0-bce1-c3a702b4c5f2\build2.exe
                "C:\Users\Admin\AppData\Local\154e014c-238f-4fb0-bce1-c3a702b4c5f2\build2.exe"
                6⤵
                  PID:952

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1KB

        MD5

        066f25f02e2b2ee2af54544028f9dd37

        SHA1

        9167983ad24f65c762b7622a8f43e8a218cd72b5

        SHA256

        b208bbc90869834e2fe53ae058b5ab6c200f5c5a00d8b536989f65071568be8c

        SHA512

        d79e1b28bae5f2026cbc142aa0ee78552d20b477ef507b12ba36f1522c7be1b20b4d0e218a3755537d5610ef0852744e673149944f8b337ace006280e71c2beb

      • 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

        eaf49ae41ba9178e804bbce9e7513f15

        SHA1

        beca6dcf37f809813de7a7762b64e1842dd7d497

        SHA256

        f0f6dc66f7ec815ab716ee81a7eced6a80b20fcf3d42817878aeb639fa16b39d

        SHA512

        925dce610f90a4b23c2ea29313b5ea98d2873dbdae94f0af53426df1d00ceebdf583edda606d362d24e2e69b13c9e7bea2b45d862485536eb6f6d999e6c710a2

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

        Filesize

        344B

        MD5

        eb064309ba0cee0418c8f11e332cf907

        SHA1

        5398818d4dd8c6f5d03097447652f91e949718f5

        SHA256

        c43ce2133ee89a77f17f7ca36b067a512e237a212b3ad30a6894418f6505bf76

        SHA512

        279238513aace541989899328975bb55d0823d3999f3d88692f88f6b246b8abf680616e0261f8824b6756a859ecf9c16e781673d7b08022d80eaaf643aa5a8c7

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

        Filesize

        344B

        MD5

        982ded2446096b9be81f6137d08bea5e

        SHA1

        1b3e89163d0fef97476a7ba9e48cf3fca7e8a4d5

        SHA256

        0f8467eea64e7016464b0dcb5581bb1d8a3956060fb35a2971c2c6a746b01362

        SHA512

        f09e99fc24a718dcb166ff93e53d647f29398fd31efd075ad334c27e6009b767de878f322e9c7b63d9d82d6c4d146f3d07fab75cb089d3f925a1b979af662e6c

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

        Filesize

        392B

        MD5

        df7716b26e73269e9e87084c3eb8a4cf

        SHA1

        c7311db9b83923f5a2f1e8bf8a4098f731b47941

        SHA256

        c9118fef4631d6798f105e6baa4646f3a4c149d55b36d26544eee701d6ac4b49

        SHA512

        4ab4c67312c556fd7be005e0e9ae54e939c2bf9aa77b9e27004b314c541e91cd686a148927c9612ee736cb0e290c42efeed5557b3a79290e379d1c32389bbf52

      • C:\Users\Admin\AppData\Local\154e014c-238f-4fb0-bce1-c3a702b4c5f2\build2.exe

        Filesize

        247KB

        MD5

        1f7efac73d987dae200e36922267d8c6

        SHA1

        a1bb90007d2e00025953c13ca742d767ebcce27e

        SHA256

        5719504e2f4e976c8ce6fbfda399b80273e783ff05f61dfd1f1bd4737f0bde8a

        SHA512

        75ef83a7e079e553a98e60dd73a9eebbaa793ced7bbd8a712a8f7f363349456d12b3766481d03d00f376cf31c4697afd934eb9b29a2e70727a70a9f463d03bed

      • C:\Users\Admin\AppData\Local\154e014c-238f-4fb0-bce1-c3a702b4c5f2\build2.exe

        Filesize

        16KB

        MD5

        6d3fcd419ccd6052e6f475ea0217c39a

        SHA1

        71cc6dd68d4877fb04cb00fb01ecd054014ee5f4

        SHA256

        1104e5e33baf9e8cb5b71fcb77702c9de70cd89f594a8d8a1cb95a710ed9c590

        SHA512

        e8c00e3e5d892a44cd90129b7420b6f67310c277e74f35d255f74f1981c20661cc2a340ee214f83e19a1a3c579be445fb8d8405f3e2c21a1bf972e1a3ef7e369

      • C:\Users\Admin\AppData\Local\154e014c-238f-4fb0-bce1-c3a702b4c5f2\build2.exe

        Filesize

        34KB

        MD5

        153f84b22b448d8739834d6d685533e8

        SHA1

        67b870cc89ae2d1fc1d4bcf641333c4a123a3fba

        SHA256

        edf35eb3a8b4350cba08a61a1a46ce2be513ad946dc93138eb9376acade3f2a5

        SHA512

        cc814a8c9113bf5e5366e07c7349b91e019971dea97965fa74f51998ba081069e81f1d0b296a7b42f76f9cb1845a868cc7a354dd7e5f441e79b5ab2cc1a209eb

      • C:\Users\Admin\AppData\Local\Temp\CabB819.tmp

        Filesize

        23KB

        MD5

        0b382f8001d0baee72c248006b169b8e

        SHA1

        5bbff36f8c62dd665e5cd9904a306cefaa4381c0

        SHA256

        35102ad9654547d62a5301cf1ebe1b3279c51b5b61bff7c43ee68e929d3b3052

        SHA512

        bee8773715930c02a0d9a933ce7fdf4daabe66a23436632196e30a7b19bccc249120a72df29956b9cc93a36b5ead0de4663e4e7812d5c85e5d6d9424c279cf1e

      • C:\Users\Admin\AppData\Local\Temp\Tar64DC.tmp

        Filesize

        116KB

        MD5

        aac923355e724d3176eab1468e0541c7

        SHA1

        5a26fe7448d71959c8e066eb6c0bf4a1d8abe180

        SHA256

        578ac2bf1e2eb667353710c7299813839b6b231744875ec58a89aa4c56185ca6

        SHA512

        ca621b8685d816cad436f2f47746d95f7a1a6e635991cfa8442e90b7d44b8d79bcd250c6ef2cd3ab82585bcc4e45d7dd95217a1f7616472bfbc4ef059837c5a0

      • C:\Users\Admin\AppData\Local\dc9bd6c5-9ff3-4a22-ae09-dc9c04badd7a\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe

        Filesize

        112KB

        MD5

        7bcea5882f376f720e897ef7e81341de

        SHA1

        d682780bb2a1e92c69d6905fc608dd860b280c86

        SHA256

        1737b6b5a3c7d1594f95c0466a441ee47b550168400abf3f9f87a052b6cce21c

        SHA512

        a8560a52828806c25c1f397212fec16944fc73e5383ffbd9138cfd140b1abb0ac763080745ef6d9682c7947b0273e3c13b135e3a5655392909cddd371dce5332

      • \Users\Admin\AppData\Local\154e014c-238f-4fb0-bce1-c3a702b4c5f2\build2.exe

        Filesize

        187KB

        MD5

        861cdeb9ff30786095aeeea998dbfd2b

        SHA1

        ddf681c1b6fafea357a4604e0ee9cc58530a4d8c

        SHA256

        654d1589b520bac0c27c8433f0768d8246fab36b4d7d5ce2bd25b8d0301f0c3c

        SHA512

        1b46ea212ffeed2214a4b990379d6115c2375c3fdb3067bdb717ad3648af075bdb38c1b1bbe9570ece9e2d3624a4f064e91a0c0e5e48d005205aa2e1cb376e64

      • memory/396-96-0x00000000001B0000-0x00000000001DA000-memory.dmp

        Filesize

        168KB

      • memory/396-95-0x00000000002B0000-0x00000000003B0000-memory.dmp

        Filesize

        1024KB

      • memory/952-102-0x0000000000400000-0x000000000063D000-memory.dmp

        Filesize

        2.2MB

      • memory/952-167-0x0000000000400000-0x000000000063D000-memory.dmp

        Filesize

        2.2MB

      • memory/952-98-0x0000000000400000-0x000000000063D000-memory.dmp

        Filesize

        2.2MB

      • memory/952-188-0x0000000000400000-0x000000000063D000-memory.dmp

        Filesize

        2.2MB

      • memory/952-101-0x0000000000400000-0x000000000063D000-memory.dmp

        Filesize

        2.2MB

      • memory/952-139-0x0000000000400000-0x000000000063D000-memory.dmp

        Filesize

        2.2MB

      • memory/952-187-0x0000000000400000-0x000000000063D000-memory.dmp

        Filesize

        2.2MB

      • memory/2196-4-0x00000000021F0000-0x000000000230B000-memory.dmp

        Filesize

        1.1MB

      • memory/2196-0-0x0000000000330000-0x00000000003C2000-memory.dmp

        Filesize

        584KB

      • memory/2196-1-0x0000000000330000-0x00000000003C2000-memory.dmp

        Filesize

        584KB

      • memory/2356-5-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2356-7-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2356-28-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2356-8-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2356-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2612-37-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2612-92-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2612-64-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2612-62-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2612-63-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2612-60-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2612-56-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2612-54-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2612-52-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2612-36-0x0000000000400000-0x0000000000537000-memory.dmp

        Filesize

        1.2MB

      • memory/2844-35-0x00000000002A0000-0x0000000000332000-memory.dmp

        Filesize

        584KB

      • memory/2844-30-0x00000000002A0000-0x0000000000332000-memory.dmp

        Filesize

        584KB