Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    16-05-2022 08:18

General

  • Target

    03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589.exe

  • Size

    833KB

  • MD5

    1d94e767cb2a3a08bc04612a737c73fc

  • SHA1

    cd35f26a449d38ffdaadab2e8a712b0f68837176

  • SHA256

    03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589

  • SHA512

    f60ea0c8d07a977ad7e60dd8b8b1f50d3c3cf268a8a8c0cd24b1e78513d53b301115b131e32cbdc30f940c6bbafc0d40f81395c554a7c593d3b059ce59bd05c9

Malware Config

Extracted

Family

djvu

C2

http://ugll.org/test1/get.php

Attributes
  • extension

    .byya

  • offline_id

    e8w5MeiBrZVoHLoloPm9MNlKBzXH70BB3B2KQ7t1

  • payload_url

    http://zerit.top/dl/build2.exe

    http://ugll.org/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-2w6I3WpXEh 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: 0475JIjdm

rsa_pubkey.plain

Extracted

Family

vidar

Version

52.1

Botnet

517

C2

https://t.me/verstappenf1r

https://climatejustice.social/@ronxik312

Attributes
  • profile_id

    517

Signatures

  • Detected Djvu ransomware 8 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

  • suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

    suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Public Key Download

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Public Key Download

  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

  • suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

    suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

  • Vidar Stealer 5 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589.exe
    "C:\Users\Admin\AppData\Local\Temp\03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Users\Admin\AppData\Local\Temp\03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589.exe
      "C:\Users\Admin\AppData\Local\Temp\03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1664
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\3041d64a-cd08-4266-bf05-2ad4960b1a80" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1352
      • C:\Users\Admin\AppData\Local\Temp\03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589.exe
        "C:\Users\Admin\AppData\Local\Temp\03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1652
        • C:\Users\Admin\AppData\Local\Temp\03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589.exe
          "C:\Users\Admin\AppData\Local\Temp\03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:328
          • C:\Users\Admin\AppData\Local\0b1101cd-23c6-47bf-97e3-1ed3f9f9c228\build2.exe
            "C:\Users\Admin\AppData\Local\0b1101cd-23c6-47bf-97e3-1ed3f9f9c228\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1680
            • C:\Users\Admin\AppData\Local\0b1101cd-23c6-47bf-97e3-1ed3f9f9c228\build2.exe
              "C:\Users\Admin\AppData\Local\0b1101cd-23c6-47bf-97e3-1ed3f9f9c228\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Modifies system certificate store
              • Suspicious behavior: EnumeratesProcesses
              PID:1104

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    727B

    MD5

    8ae6f45bb6c9f288a96a3402dc17e2d9

    SHA1

    9ddb0d782cb4728675a1f5b61cfc632997349cdf

    SHA256

    ae4681e5db7de9744bdd78a943d6be6a390aa925125935d6cb691a27c8b2ebd3

    SHA512

    ee94f18f21437c1fba42cca69d535997c89438801ea6e823e99d384e9bc0239b041dc5ed854063a571bac2bbd2f83d7113c7f456d130b15e7db847e7fe4e8ec7

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

    Filesize

    60KB

    MD5

    b9f21d8db36e88831e5352bb82c438b3

    SHA1

    4a3c330954f9f65a2f5fd7e55800e46ce228a3e2

    SHA256

    998e0209690a48ed33b79af30fc13851e3e3416bed97e3679b6030c10cab361e

    SHA512

    d4a2ac7c14227fbaf8b532398fb69053f0a0d913273f6917027c8cadbba80113fdbec20c2a7eb31b7bb57c99f9fdeccf8576be5f39346d8b564fc72fb1699476

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

    Filesize

    471B

    MD5

    b1c4234d2346ca5a2267de9f0bab4b81

    SHA1

    d6d10976b258ee86430063fdfb1838bb73838aeb

    SHA256

    e75d5e79323e42e337cf188a296db211f5d7dd488d03adf4b1be7836f997e3ed

    SHA512

    8b1d4c34ad847b73d060cb35dba350032be0a8cd82637a5c52805c078ea986ea44446040f588fb4edda4a233e424bdb6dc3ba016b7647936ec4ef4f971ff1e17

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

    Filesize

    402B

    MD5

    d6de89303ca27a0a6418f6a0ca82462e

    SHA1

    531086b9012e603e2dc69f162780724f2a1da5f2

    SHA256

    42a044f24d127f0a6cb6be8681c2e4789092ab20bcfaa6cc59b7621654fd0735

    SHA512

    785e5ec40076179cb0b3295f56c1f29b5a86776668e060affe20027baabe3c87ee22d3d5d25d024b1d74a8d7995d576a4f05fef2eeb2a1109dc8a42f5700da4d

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

    Filesize

    344B

    MD5

    f2bda5f1bdb18a5cf6873816c8b6dc9d

    SHA1

    bf4649528b22d6299b2035ae8b874a48d767208f

    SHA256

    7343925861becfb2b60ecc4e63623178c735e96c055fc59008dc52159d1afaff

    SHA512

    4f4af54147f5c6ac96f3f3857f1980df2d7f092dd800529b41e450b82511e0e7340db45a37f1091d99b6d106ad61188daab03f28297d823a1eff6635bea59098

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

    Filesize

    396B

    MD5

    88b99908689d2b32606e380f7669bb3c

    SHA1

    b8f64832ecd40bcef036cd3a9206e7166e3621fc

    SHA256

    77b376a3feff8bda2772caafee79bb80231690ab11d3ec10ce7da76758cbb970

    SHA512

    c5d84a766fa6a8f4c75dae894e5e6896d61433725c81c6f6dcbf132cc6b0f416f9b6d103f8acf8d3c2e5a6f07be2f50aaadd1183b99eafed97c218bb921d7145

  • C:\Users\Admin\AppData\Local\0b1101cd-23c6-47bf-97e3-1ed3f9f9c228\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\0b1101cd-23c6-47bf-97e3-1ed3f9f9c228\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\0b1101cd-23c6-47bf-97e3-1ed3f9f9c228\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\3041d64a-cd08-4266-bf05-2ad4960b1a80\03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589.exe

    Filesize

    833KB

    MD5

    1d94e767cb2a3a08bc04612a737c73fc

    SHA1

    cd35f26a449d38ffdaadab2e8a712b0f68837176

    SHA256

    03ff8b23e8ece95ca08d0ab4a9d0505f4c4b4189b59fb50f1859a2232bd8b589

    SHA512

    f60ea0c8d07a977ad7e60dd8b8b1f50d3c3cf268a8a8c0cd24b1e78513d53b301115b131e32cbdc30f940c6bbafc0d40f81395c554a7c593d3b059ce59bd05c9

  • \ProgramData\mozglue.dll

    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll

    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • \Users\Admin\AppData\Local\0b1101cd-23c6-47bf-97e3-1ed3f9f9c228\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • \Users\Admin\AppData\Local\0b1101cd-23c6-47bf-97e3-1ed3f9f9c228\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • memory/328-79-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/328-72-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/328-68-0x0000000000424141-mapping.dmp

  • memory/1104-94-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/1104-93-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1104-85-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1104-92-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1104-86-0x000000000042103C-mapping.dmp

  • memory/1352-63-0x0000000000000000-mapping.dmp

  • memory/1652-70-0x0000000000330000-0x00000000003C2000-memory.dmp

    Filesize

    584KB

  • memory/1652-66-0x0000000000330000-0x00000000003C2000-memory.dmp

    Filesize

    584KB

  • memory/1652-65-0x0000000000000000-mapping.dmp

  • memory/1664-62-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1664-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1664-56-0x0000000000424141-mapping.dmp

  • memory/1664-59-0x00000000754A1000-0x00000000754A3000-memory.dmp

    Filesize

    8KB

  • memory/1664-61-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1680-89-0x000000000028A000-0x00000000002B4000-memory.dmp

    Filesize

    168KB

  • memory/1680-90-0x00000000004A0000-0x00000000004E9000-memory.dmp

    Filesize

    292KB

  • memory/1680-82-0x0000000000000000-mapping.dmp

  • memory/1732-54-0x0000000000330000-0x00000000003C2000-memory.dmp

    Filesize

    584KB

  • memory/1732-58-0x0000000000330000-0x00000000003C2000-memory.dmp

    Filesize

    584KB

  • memory/1732-60-0x0000000001E60000-0x0000000001F7B000-memory.dmp

    Filesize

    1.1MB