Analysis

  • max time kernel
    161s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 03:56

General

  • Target

    bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7.exe

  • Size

    800KB

  • MD5

    5659380d039dd445bdf45ad06b69294d

  • SHA1

    1bc659633a0eb502a786058fba712f2dbee9baf3

  • SHA256

    bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7

  • SHA512

    642e4d0389f2b382a90e127b1c0bbcfe83fdce927fdb9f435e39ef31639d6043a255d30e9334b2d7d39f78a5668b940a41604b526a7bb900319e67f42b9c99e0

Malware Config

Extracted

Family

djvu

C2

http://ugll.org/fhsgtsspen6/get.php

Attributes
  • extension

    .fdcv

  • offline_id

    eBNgvyGQV1Hmt9DBdxVRs8qPi1agsS7OaohPmit1

  • 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-j3AdKrnQie 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: 0483JIjdm

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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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). 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7.exe
    "C:\Users\Admin\AppData\Local\Temp\bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:904
    • C:\Users\Admin\AppData\Local\Temp\bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7.exe
      "C:\Users\Admin\AppData\Local\Temp\bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1536
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\3decffab-8373-4ac5-8f09-719dbbc78eb3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2988
      • C:\Users\Admin\AppData\Local\Temp\bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7.exe
        "C:\Users\Admin\AppData\Local\Temp\bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4412
        • C:\Users\Admin\AppData\Local\Temp\bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7.exe
          "C:\Users\Admin\AppData\Local\Temp\bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4352
          • C:\Users\Admin\AppData\Local\639c3a33-aed9-4dd3-a98d-1c2666669dfc\build2.exe
            "C:\Users\Admin\AppData\Local\639c3a33-aed9-4dd3-a98d-1c2666669dfc\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3808
            • C:\Users\Admin\AppData\Local\639c3a33-aed9-4dd3-a98d-1c2666669dfc\build2.exe
              "C:\Users\Admin\AppData\Local\639c3a33-aed9-4dd3-a98d-1c2666669dfc\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4268

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\nss3.dll

    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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

    Filesize

    978B

    MD5

    c8888f31fd1ff065e9eb8b693fa9dd91

    SHA1

    57cb0a55d038d5e1b14839b3f22ee310dff28610

    SHA256

    04ef9b7db3cb7fde61cc3583a5e69ceb1e2785540132e3d8b17af476fcd3ac11

    SHA512

    7064d0fb2aaa415390911eab79b47cd267033ca09fab78889c262c7233bd776c4a51d3bfe669b3ae74afc5f4a7e81be8bab3f1ba3d2348b6be4547394e1b56a4

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

    Filesize

    471B

    MD5

    c04f441d0220712231531a90823834db

    SHA1

    68dd18f1e0c51f1fdc4621394091a2dad08e4a08

    SHA256

    055641d3987ae98e2dd627d3214ea8084ae773a3df9592191b86977c752a29e7

    SHA512

    3156cf79585a45d919d4b27da4fe860f06e3206961fe1d20347ad74ef17de81c47857f35acd5cda3fae5ade28ab9747529ea3e8e79ca80aaf98e1f0e852bed53

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

    Filesize

    274B

    MD5

    01199619661e775c1614d5b1816ccb10

    SHA1

    b422b124371e45f7b550aba0291b106add8bd746

    SHA256

    58e0de9aa3ea89cabe5eaa7f06d7649e4ecb79bb9f85c83a0cce4cf8e945e090

    SHA512

    5cace2917feb1166e1bb88ecc60ec5a5680861570ff6a5d58519e8d76d812077cc64e5488027d5dba5ffa8329d99996c2a2dabcd873bba60cea5f451432abcc2

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

    Filesize

    396B

    MD5

    9047036a8078ad508a8c69ad5a45ff7d

    SHA1

    93c34af98e91923dcfbba671fe9d5b5c7fd0cedf

    SHA256

    893771fedb2abcf58f5e7f998565f30d3cf185dfb322099ecf844c43787c4938

    SHA512

    ff3b4c0dd904510b382989794fac2b3c14892862686402eacfffdddf73969148361af83cecba90b1624ce71777c6f39514003638e3d9eb80bba3533425f8ebbe

  • C:\Users\Admin\AppData\Local\3decffab-8373-4ac5-8f09-719dbbc78eb3\bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7.exe

    Filesize

    800KB

    MD5

    5659380d039dd445bdf45ad06b69294d

    SHA1

    1bc659633a0eb502a786058fba712f2dbee9baf3

    SHA256

    bc9a32054f0e80355b205116e7ac98e7d10050aeff4f4d3486dbc79ec960a2d7

    SHA512

    642e4d0389f2b382a90e127b1c0bbcfe83fdce927fdb9f435e39ef31639d6043a255d30e9334b2d7d39f78a5668b940a41604b526a7bb900319e67f42b9c99e0

  • C:\Users\Admin\AppData\Local\639c3a33-aed9-4dd3-a98d-1c2666669dfc\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\639c3a33-aed9-4dd3-a98d-1c2666669dfc\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\639c3a33-aed9-4dd3-a98d-1c2666669dfc\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • memory/904-133-0x00000000049B1000-0x0000000004A42000-memory.dmp

    Filesize

    580KB

  • memory/904-134-0x0000000004A50000-0x0000000004B6B000-memory.dmp

    Filesize

    1.1MB

  • memory/1536-130-0x0000000000000000-mapping.dmp

  • memory/1536-131-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1536-132-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1536-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1536-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2988-137-0x0000000000000000-mapping.dmp

  • memory/3808-157-0x0000000000677000-0x00000000006A1000-memory.dmp

    Filesize

    168KB

  • memory/3808-150-0x0000000000000000-mapping.dmp

  • memory/3808-159-0x0000000000600000-0x0000000000649000-memory.dmp

    Filesize

    292KB

  • memory/4268-153-0x0000000000000000-mapping.dmp

  • memory/4268-154-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4268-156-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4268-158-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4268-160-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4268-161-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/4352-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4352-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4352-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4352-140-0x0000000000000000-mapping.dmp

  • memory/4412-143-0x0000000004886000-0x0000000004917000-memory.dmp

    Filesize

    580KB

  • memory/4412-139-0x0000000000000000-mapping.dmp