Analysis

  • max time kernel
    292s
  • max time network
    189s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    17/07/2023, 00:06

General

  • Target

    b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61.exe

  • Size

    754KB

  • MD5

    779296f53a3176d3d85a555250327f4f

  • SHA1

    4495a186daa616f96d9030cdcd52a187bb529b76

  • SHA256

    b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61

  • SHA512

    0bf82b6a66ae78bbbd27b0e40c740dd6c8d5f3d8f49b8ec397c8334b1e7f4c9138be77b242b61e11b403c952faba4a9e1641704bde26019610387e2bcfd09c90

  • SSDEEP

    12288:6UAFG5A55vjOvcRtiASyB2M1yHXaFlZv/WKtM6eQbFOGWm4uYOaSU:MFG5A5574Uth2CBbwKm6nJOlDuYOlU

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 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 4 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.

  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61.exe
    "C:\Users\Admin\AppData\Local\Temp\b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Users\Admin\AppData\Local\Temp\b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61.exe
      "C:\Users\Admin\AppData\Local\Temp\b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:888
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6d7fda4a-26e5-4295-9c3b-9568e3b33dbe" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4220
      • C:\Users\Admin\AppData\Local\Temp\b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61.exe
        "C:\Users\Admin\AppData\Local\Temp\b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4340
        • C:\Users\Admin\AppData\Local\Temp\b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61.exe
          "C:\Users\Admin\AppData\Local\Temp\b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:204
          • C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build2.exe
            "C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2564
            • C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build2.exe
              "C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:3392
          • C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build3.exe
            "C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3364
            • 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"
              6⤵
              • Creates scheduled task(s)
              PID:4840
  • 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 WriteProcessMemory
    PID:3544
    • 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"
      2⤵
      • Creates scheduled task(s)
      PID:4724

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3538626A1FCCCA43C7E18F220BDD9B02

          Filesize

          929B

          MD5

          841a86da172a134aa003cf143676227f

          SHA1

          f9057ebeb99897953dac78ec4c1aaaf48e65f880

          SHA256

          75aab50a9d96c9e622f5ac91b253708dbd7be9f9a5ac8ecc1665fa7cfbdc2f3a

          SHA512

          4fd6036e3b1a2b77c56ae3f989943ffc55dfeb04ecb7952e73b065633b716e4bec8d5234fe511522c460adf1e1238228956fde1b82bbea223189f422c2071571

        • 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\3538626A1FCCCA43C7E18F220BDD9B02

          Filesize

          274B

          MD5

          7406ade1d836030260fe850e1f213120

          SHA1

          a90269c1d39986bed0333f55161a606b9ca3d794

          SHA256

          ae8a2e0dd0ac6fea3bdc5b48858b9ba2b6c8038020062e738a213ecd3608b435

          SHA512

          f815b0cdafaf20f921091480df8e0d1c8e547c91509f730b2bc07ba677bc10be0a77e9b1ff6f55e2ac8b088885a7013edde3c51713c3fca6a334e4ee0be82509

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

          Filesize

          482B

          MD5

          92d2afd5292873221f044dc56ffcf1f5

          SHA1

          5d956f825991cfdb20c4b31a7242af720e5ad71d

          SHA256

          eb7843b51cde2392699c742cba38a64b19850847f8e9bc1b93792c6e1cb79306

          SHA512

          aadd8fedb1b01a3b24197057aa2584b4ca28d0972741669354110bc6d94c05e2c3328227fc8fd255d14e2fb6e1be631dd83b72933149d051b8bf944c3d852eed

        • C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build2.exe

          Filesize

          447KB

          MD5

          08819e55df0897a6dded1e5e6bf83601

          SHA1

          22d39992c6245b86ee8b14e0cc820e46a9094c45

          SHA256

          3dae32e22775721f2f9de5fec79dbcd8d62adaeb057b47c4524e02d130a43b25

          SHA512

          36ed6a07776139fbc4e1f4a90745633466ce40db8a374417cafc5846e3bd7277c56673dc98ef9b2379f286d3f0bacdce62e67f6b01fe177ed1dafa1065036b8b

        • C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build2.exe

          Filesize

          447KB

          MD5

          08819e55df0897a6dded1e5e6bf83601

          SHA1

          22d39992c6245b86ee8b14e0cc820e46a9094c45

          SHA256

          3dae32e22775721f2f9de5fec79dbcd8d62adaeb057b47c4524e02d130a43b25

          SHA512

          36ed6a07776139fbc4e1f4a90745633466ce40db8a374417cafc5846e3bd7277c56673dc98ef9b2379f286d3f0bacdce62e67f6b01fe177ed1dafa1065036b8b

        • C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build2.exe

          Filesize

          447KB

          MD5

          08819e55df0897a6dded1e5e6bf83601

          SHA1

          22d39992c6245b86ee8b14e0cc820e46a9094c45

          SHA256

          3dae32e22775721f2f9de5fec79dbcd8d62adaeb057b47c4524e02d130a43b25

          SHA512

          36ed6a07776139fbc4e1f4a90745633466ce40db8a374417cafc5846e3bd7277c56673dc98ef9b2379f286d3f0bacdce62e67f6b01fe177ed1dafa1065036b8b

        • C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\0a783ec8-66d8-4063-86ea-7e30bfbf3d67\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\6d7fda4a-26e5-4295-9c3b-9568e3b33dbe\b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61.exe

          Filesize

          754KB

          MD5

          779296f53a3176d3d85a555250327f4f

          SHA1

          4495a186daa616f96d9030cdcd52a187bb529b76

          SHA256

          b3eab2053bdad8a1e8401d3c61b306ff6f80c717e24d58b57c1fbbb95b3cbb61

          SHA512

          0bf82b6a66ae78bbbd27b0e40c740dd6c8d5f3d8f49b8ec397c8334b1e7f4c9138be77b242b61e11b403c952faba4a9e1641704bde26019610387e2bcfd09c90

        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • \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/204-154-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/204-141-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/204-147-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/204-148-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/204-152-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/204-155-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/204-140-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/204-142-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/204-175-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/888-121-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/888-123-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/888-129-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/888-120-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/888-122-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/888-135-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2564-165-0x0000000002180000-0x000000000220D000-memory.dmp

          Filesize

          564KB

        • memory/2564-164-0x00000000007E0000-0x00000000008E0000-memory.dmp

          Filesize

          1024KB

        • memory/3392-242-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/3392-192-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/3392-168-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/3392-166-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/3392-227-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/3392-241-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/3392-170-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/3392-243-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/3392-169-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/4340-138-0x0000000002130000-0x00000000021C6000-memory.dmp

          Filesize

          600KB

        • memory/5040-118-0x0000000002300000-0x0000000002396000-memory.dmp

          Filesize

          600KB

        • memory/5040-119-0x00000000023A0000-0x00000000024BB000-memory.dmp

          Filesize

          1.1MB