Analysis

  • max time kernel
    77s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    01-05-2022 10:42

General

  • Target

    f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17.exe

  • Size

    782KB

  • MD5

    daaaa64206630aa2e8420e9a977db882

  • SHA1

    c30262b62a36742b80d8762f8790c54e7337beaf

  • SHA256

    f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17

  • SHA512

    0d6d31414feb2ea68276f41a6ced739edb19708a500892596cc5e2743e8b038d94adef83b4350f4007af4f72bf493eadb09b0facf96c55b48c6998e3fce53705

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .ttii

  • offline_id

    w6IKbZ9nGWp1wM5W7MK8obmynSc0Hx2FVdvsSzt1

  • payload_url

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

    http://fuyt.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-PRDjRCeB3y 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: manager@time2mail.ch Reserve e-mail address to contact us: supportsys@airmail.cc Your personal ID: 0465JIjdm

rsa_pubkey.plain

Extracted

Family

vidar

Version

51.8

Botnet

517

C2

https://t.me/mm20220428

https://koyu.space/@ronxik123

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\f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17.exe
    "C:\Users\Admin\AppData\Local\Temp\f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Users\Admin\AppData\Local\Temp\f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17.exe
      "C:\Users\Admin\AppData\Local\Temp\f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:564
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\ce8d3455-d9c4-4dfe-aa09-311537b1b9cf" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:640
      • C:\Users\Admin\AppData\Local\Temp\f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17.exe
        "C:\Users\Admin\AppData\Local\Temp\f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3112
        • C:\Users\Admin\AppData\Local\Temp\f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17.exe
          "C:\Users\Admin\AppData\Local\Temp\f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:228
          • C:\Users\Admin\AppData\Local\e36257ff-3838-4d7c-9c0b-184911c751b4\build2.exe
            "C:\Users\Admin\AppData\Local\e36257ff-3838-4d7c-9c0b-184911c751b4\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3484
            • C:\Users\Admin\AppData\Local\e36257ff-3838-4d7c-9c0b-184911c751b4\build2.exe
              "C:\Users\Admin\AppData\Local\e36257ff-3838-4d7c-9c0b-184911c751b4\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4780

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

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\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
    Filesize

    727B

    MD5

    d7f7c80fe97665d703c4060cb969e8bc

    SHA1

    39f1cdd78563e6139c4212644d3190a8359290eb

    SHA256

    34f78e2112650156ff1e9f3ab156f8a12cf68aa00e2a6f25ca41ba88e2429a40

    SHA512

    6d420aafab6cd5c273b5ae1446d1b9861dae388b2bc50b219c11efdd1f58a05c03d89fbb36b3bb3e0bde79974311c2e6997899e89f62811df54ed4a158f8c338

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

    471B

    MD5

    36d45b330d5eef29217009ce51799d72

    SHA1

    e5a0735690fc198a2ab02c1a0b2487d5014cba9b

    SHA256

    a1e5b5827ed7bbafeb8c063542478e1dcd34d46c6e20aca3f07f95f503963b9c

    SHA512

    2acec052c274574f0d748d1d35753fa2b9327dcab72b2bb40025a0cd604b887345511f0a01a4b95c4f412df4753602159ddc724a499235490246a17d38a1fa42

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

    402B

    MD5

    c4e12d95155bd9a21841b2789867f5d4

    SHA1

    eabb4fb2553005b1f1c8657aa40c3f01aa01c8bd

    SHA256

    682cd5634831a1a763f84140d74bf29de173a036b826c7c2a594da27d0ed183c

    SHA512

    b9d5991f09ed6aca57ff2846b2d4f713dc3021250790440c0009eae4a382b7b2add93c4e0fbc889ff34689db4ddb55affc96e0bef278f432d87805676b871df2

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

    396B

    MD5

    c13d5d17fc9c71c58cef93231651cc64

    SHA1

    d1e2dbc9da425d4accae6a5cc91d1711c6afe737

    SHA256

    643ea68c73fa1dd0c2d53ab1762d1eaf4c795dfdef1c905a61adf18e34fd19c8

    SHA512

    648cce99488488497c13e911b72bb9a34d4213715aedbdace3352f56bfc40f13f4e3aef0d85fc87499b126df9cfdc216e7926fc81f930e39d03d40969d83fec1

  • C:\Users\Admin\AppData\Local\ce8d3455-d9c4-4dfe-aa09-311537b1b9cf\f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17.exe
    Filesize

    782KB

    MD5

    daaaa64206630aa2e8420e9a977db882

    SHA1

    c30262b62a36742b80d8762f8790c54e7337beaf

    SHA256

    f7d2fb96b8474ffc6462e6fcec894ff54936879ef767ebcaf50e89aaa5208c17

    SHA512

    0d6d31414feb2ea68276f41a6ced739edb19708a500892596cc5e2743e8b038d94adef83b4350f4007af4f72bf493eadb09b0facf96c55b48c6998e3fce53705

  • C:\Users\Admin\AppData\Local\e36257ff-3838-4d7c-9c0b-184911c751b4\build2.exe
    Filesize

    368KB

    MD5

    ad1b502b6714c0a374b055332018974b

    SHA1

    672f4e44475177ddcb1bfa73db3c5dee0f031bc2

    SHA256

    f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95

    SHA512

    0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e

  • C:\Users\Admin\AppData\Local\e36257ff-3838-4d7c-9c0b-184911c751b4\build2.exe
    Filesize

    368KB

    MD5

    ad1b502b6714c0a374b055332018974b

    SHA1

    672f4e44475177ddcb1bfa73db3c5dee0f031bc2

    SHA256

    f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95

    SHA512

    0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e

  • C:\Users\Admin\AppData\Local\e36257ff-3838-4d7c-9c0b-184911c751b4\build2.exe
    Filesize

    368KB

    MD5

    ad1b502b6714c0a374b055332018974b

    SHA1

    672f4e44475177ddcb1bfa73db3c5dee0f031bc2

    SHA256

    f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95

    SHA512

    0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e

  • memory/228-142-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/228-144-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/228-140-0x0000000000000000-mapping.dmp
  • memory/228-149-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/564-134-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/564-131-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/564-132-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/564-136-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/564-130-0x0000000000000000-mapping.dmp
  • memory/640-137-0x0000000000000000-mapping.dmp
  • memory/2764-133-0x0000000002250000-0x00000000022E2000-memory.dmp
    Filesize

    584KB

  • memory/2764-135-0x00000000023D0000-0x00000000024EB000-memory.dmp
    Filesize

    1.1MB

  • memory/3112-143-0x000000000077A000-0x000000000080C000-memory.dmp
    Filesize

    584KB

  • memory/3112-139-0x0000000000000000-mapping.dmp
  • memory/3484-156-0x0000000000538000-0x0000000000563000-memory.dmp
    Filesize

    172KB

  • memory/3484-150-0x0000000000000000-mapping.dmp
  • memory/3484-158-0x0000000001FC0000-0x0000000002009000-memory.dmp
    Filesize

    292KB

  • memory/4780-154-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4780-159-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4780-160-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4780-161-0x0000000060900000-0x0000000060992000-memory.dmp
    Filesize

    584KB

  • memory/4780-157-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4780-153-0x0000000000000000-mapping.dmp