Analysis

  • max time kernel
    146s
  • max time network
    132s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    16-07-2023 09:04

General

  • Target

    3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed.exe

  • Size

    804KB

  • MD5

    22bf5e236d06502297e9a1a7719be907

  • SHA1

    d3512e37b460a48cb131f23feab00bd9ab89d050

  • SHA256

    3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed

  • SHA512

    8414aaeb73acfd41210ccd40211765f97120a95fbde43aecd27de5c1c8d4f62d616eab3754c9060024534638e08d347148e68a21f153b3cf7abd99faaebca9ba

  • SSDEEP

    12288:F6DJTRbpTo7R9pBD8YrjvCCjam7zlGTg7n4AvkQ9rF:UJTfT8RlwYnvFealGkT4AvnF

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .miza

  • offline_id

    1S27jnaC9TYNiwf9VvJvIx5XCXvgyoDAUXHnu0t1

  • payload_url

    http://colisumy.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-nSxayRgUNO 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: 0744Pokj

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.7

Botnet

https://t.me/eagl3z

C2

https://t.me/eagl3z

https://steamcommunity.com/profiles/76561199159550234

Attributes
  • profile_id_v2

    https://t.me/eagl3z

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 Edg/114.0.1788.0 uacq

Signatures

  • Detected Djvu ransomware 17 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 2 IoCs
  • Loads dropped DLL 2 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).

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed.exe
    "C:\Users\Admin\AppData\Local\Temp\3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4652
    • C:\Users\Admin\AppData\Local\Temp\3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed.exe
      "C:\Users\Admin\AppData\Local\Temp\3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4416
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\0ca09e79-63da-4e58-8686-9df3aa4f47f4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4828
      • C:\Users\Admin\AppData\Local\Temp\3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed.exe
        "C:\Users\Admin\AppData\Local\Temp\3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3564
        • C:\Users\Admin\AppData\Local\Temp\3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed.exe
          "C:\Users\Admin\AppData\Local\Temp\3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3324
          • C:\Users\Admin\AppData\Local\c069773c-bfc9-44a4-a006-66f3281194ef\build2.exe
            "C:\Users\Admin\AppData\Local\c069773c-bfc9-44a4-a006-66f3281194ef\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4856
            • C:\Users\Admin\AppData\Local\c069773c-bfc9-44a4-a006-66f3281194ef\build2.exe
              "C:\Users\Admin\AppData\Local\c069773c-bfc9-44a4-a006-66f3281194ef\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    ec50490b07b4d77ae984e14377e81faf

    SHA1

    74330d98bc1ef271a37b3ae273efcccab1c335be

    SHA256

    30afe1a3bcc9efa0dd4619e272548ef4ecc76817e67e04f69cb83f1e4380d716

    SHA512

    3972532782f05f3d24f6e8e3ab8362dfc2603c24ffe5728404977b4d13f3dc360b76b6ab8056da98845f53d5d12d9d24981d0e6edcc042d0b885114417945c8f

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

    Filesize

    1KB

    MD5

    f232260646b9219a0d25be2ba7d3e80f

    SHA1

    748c809b09ab1d39ef17ec453428cbc2449ef7b9

    SHA256

    3217032d47b15ce1c91eb2dc77e765dd9acffb0029756f4dd02ab6c12e0bd65e

    SHA512

    6eb067b352e6920b2fb6981d37ea3e3f59e3b5725a4ca797c34463b6e52e0b9e748d0cf31496b54c989bf7126d55b40d44850b7122f4d9fee3593926c4c6fedb

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

    Filesize

    488B

    MD5

    3c4d7a90730061a0afbcaa3073bd131a

    SHA1

    511911d6e7216fc80e2178a9d4a14332d50576db

    SHA256

    c3b5deae8377259f5a32cab66e46fee77b6244ac0883e8698460c6169e272e77

    SHA512

    33d237209e0414889d7b70953ed0245aece3fe04ec032832f07dfeb6036bad63e6d2a9ca0b47afe01c79b75d10588d1ff21b82118129f094c57bea01b1be56f2

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

    Filesize

    482B

    MD5

    845539bcdd8890acd53f953c7c550614

    SHA1

    98f0ca7eba35eda546b0560eed5b0e0b685fb739

    SHA256

    8792d60a16b5c763aa8f54210ea380da051b287bb551557d5392b297e9dadbfc

    SHA512

    d6a031d07a40ffa7a70c924506353db93cdc8f0d52719181091a30fa042438bfa07e38dbb1e020884c1b09b9660b03bb988248f2cb0fb8ba904e3f37e0f59869

  • C:\Users\Admin\AppData\Local\0ca09e79-63da-4e58-8686-9df3aa4f47f4\3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed.exe

    Filesize

    804KB

    MD5

    22bf5e236d06502297e9a1a7719be907

    SHA1

    d3512e37b460a48cb131f23feab00bd9ab89d050

    SHA256

    3bca6078b15ba2c3e96fc99d1c5c3ead14517c9a5f98ae34bfdd8bc2596606ed

    SHA512

    8414aaeb73acfd41210ccd40211765f97120a95fbde43aecd27de5c1c8d4f62d616eab3754c9060024534638e08d347148e68a21f153b3cf7abd99faaebca9ba

  • C:\Users\Admin\AppData\Local\c069773c-bfc9-44a4-a006-66f3281194ef\build2.exe

    Filesize

    447KB

    MD5

    08819e55df0897a6dded1e5e6bf83601

    SHA1

    22d39992c6245b86ee8b14e0cc820e46a9094c45

    SHA256

    3dae32e22775721f2f9de5fec79dbcd8d62adaeb057b47c4524e02d130a43b25

    SHA512

    36ed6a07776139fbc4e1f4a90745633466ce40db8a374417cafc5846e3bd7277c56673dc98ef9b2379f286d3f0bacdce62e67f6b01fe177ed1dafa1065036b8b

  • C:\Users\Admin\AppData\Local\c069773c-bfc9-44a4-a006-66f3281194ef\build2.exe

    Filesize

    447KB

    MD5

    08819e55df0897a6dded1e5e6bf83601

    SHA1

    22d39992c6245b86ee8b14e0cc820e46a9094c45

    SHA256

    3dae32e22775721f2f9de5fec79dbcd8d62adaeb057b47c4524e02d130a43b25

    SHA512

    36ed6a07776139fbc4e1f4a90745633466ce40db8a374417cafc5846e3bd7277c56673dc98ef9b2379f286d3f0bacdce62e67f6b01fe177ed1dafa1065036b8b

  • C:\Users\Admin\AppData\Local\c069773c-bfc9-44a4-a006-66f3281194ef\build2.exe

    Filesize

    447KB

    MD5

    08819e55df0897a6dded1e5e6bf83601

    SHA1

    22d39992c6245b86ee8b14e0cc820e46a9094c45

    SHA256

    3dae32e22775721f2f9de5fec79dbcd8d62adaeb057b47c4524e02d130a43b25

    SHA512

    36ed6a07776139fbc4e1f4a90745633466ce40db8a374417cafc5846e3bd7277c56673dc98ef9b2379f286d3f0bacdce62e67f6b01fe177ed1dafa1065036b8b

  • C:\Users\Admin\AppData\Local\c069773c-bfc9-44a4-a006-66f3281194ef\build3.exe

    Filesize

    1KB

    MD5

    04346db9f24a19c03a2578a79ca5252f

    SHA1

    26b510857e84ffaa0e5b89c3724a2a79c6311236

    SHA256

    266c1ffdde59dfb922cd80a835257e277b85cbda7659028243286aea760190d3

    SHA512

    cee5a839780c30ff6c99374d6b6905f1af3a061fdda6eb682e5d1b06a4c0077156d6b34c88d55567aa0ca2b57514d8cba433e90168bb1cb27c5af3fa150c46f2

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/3324-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3324-156-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3324-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3324-180-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3324-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3324-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3324-150-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3324-154-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3324-157-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3324-161-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3564-140-0x0000000002150000-0x00000000021EC000-memory.dmp

    Filesize

    624KB

  • memory/4416-123-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4416-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4416-126-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4416-124-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4416-125-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4652-122-0x00000000022F0000-0x000000000240B000-memory.dmp

    Filesize

    1.1MB

  • memory/4652-121-0x0000000002150000-0x00000000021EB000-memory.dmp

    Filesize

    620KB

  • memory/4856-167-0x0000000000690000-0x0000000000790000-memory.dmp

    Filesize

    1024KB

  • memory/4856-169-0x0000000002130000-0x00000000021BD000-memory.dmp

    Filesize

    564KB

  • memory/4940-173-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4940-172-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4940-171-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4940-191-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4940-168-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4940-243-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4940-244-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4940-245-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB