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Resubmissions

17/09/2023, 13:32

230917-qsynladb79 10

17/09/2023, 12:43

230917-pycsmsda52 10

Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/09/2023, 12:43

General

  • Target

    30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf.exe

  • Size

    762KB

  • MD5

    30258031f3b48750850512a93c4dd2e1

  • SHA1

    4fcb4baa2271870a3fad7de2da500712476b4be6

  • SHA256

    30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf

  • SHA512

    e1c798aa7fb5aa4da9276adece6c56e9a99b728b167e090fe95477cf50050d825ac3104ff0cde1fe1036db9baccabc5c297f19c271fffa1340d7a8a31923f911

  • SSDEEP

    12288:4mIbsCimM0mrimMPCaZVH9wAItsU1ZAc/OnVexzRVqI:4hiu1mMqaZ7rI+U/5GV4RA

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wwza

  • offline_id

    LtYnlJvK0hICyOCeum6Tv4pbia9jcIGHVgA3Xht1

  • 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-xoUXGr6cqT 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: 0789JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.6

Botnet

7b01483643983171e949f923c5bc80e7

C2

https://steamcommunity.com/profiles/76561199550790047

https://t.me/bonoboaz

Attributes
  • profile_id_v2

    7b01483643983171e949f923c5bc80e7

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 OPR/103.0.0.0

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
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • 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
  • 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 2 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf.exe
    "C:\Users\Admin\AppData\Local\Temp\30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3880
    • C:\Users\Admin\AppData\Local\Temp\30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf.exe
      "C:\Users\Admin\AppData\Local\Temp\30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5084
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\efd25b8c-656b-49be-978c-3e12fd4aa73b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:668
      • C:\Users\Admin\AppData\Local\Temp\30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf.exe
        "C:\Users\Admin\AppData\Local\Temp\30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2168
        • C:\Users\Admin\AppData\Local\Temp\30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf.exe
          "C:\Users\Admin\AppData\Local\Temp\30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4780
          • C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build2.exe
            "C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3188
            • C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build2.exe
              "C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build2.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:2944
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4512
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1696
          • C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build3.exe
            "C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3844
            • 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:4856
  • 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:3124
    • 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:3988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build2.exe

    Filesize

    426KB

    MD5

    d249cebde9fcfcddb47af02d6c10f268

    SHA1

    0c6a6a81326d9634b55e973cc4b0364693e9df53

    SHA256

    34e9b76c568bed90396850a59f181edb5233a045c1042fec1e29a42d8449cd40

    SHA512

    dfd33206b441eb51bd6c4544a11089d0f6754b124c43b7a33d6c7b3fd0de940df2e162337585dc7df66ac4ffb82fa404f140b877f531669bc84a9f8d1487a246

  • C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build2.exe

    Filesize

    426KB

    MD5

    d249cebde9fcfcddb47af02d6c10f268

    SHA1

    0c6a6a81326d9634b55e973cc4b0364693e9df53

    SHA256

    34e9b76c568bed90396850a59f181edb5233a045c1042fec1e29a42d8449cd40

    SHA512

    dfd33206b441eb51bd6c4544a11089d0f6754b124c43b7a33d6c7b3fd0de940df2e162337585dc7df66ac4ffb82fa404f140b877f531669bc84a9f8d1487a246

  • C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build2.exe

    Filesize

    426KB

    MD5

    d249cebde9fcfcddb47af02d6c10f268

    SHA1

    0c6a6a81326d9634b55e973cc4b0364693e9df53

    SHA256

    34e9b76c568bed90396850a59f181edb5233a045c1042fec1e29a42d8449cd40

    SHA512

    dfd33206b441eb51bd6c4544a11089d0f6754b124c43b7a33d6c7b3fd0de940df2e162337585dc7df66ac4ffb82fa404f140b877f531669bc84a9f8d1487a246

  • C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build2.exe

    Filesize

    426KB

    MD5

    d249cebde9fcfcddb47af02d6c10f268

    SHA1

    0c6a6a81326d9634b55e973cc4b0364693e9df53

    SHA256

    34e9b76c568bed90396850a59f181edb5233a045c1042fec1e29a42d8449cd40

    SHA512

    dfd33206b441eb51bd6c4544a11089d0f6754b124c43b7a33d6c7b3fd0de940df2e162337585dc7df66ac4ffb82fa404f140b877f531669bc84a9f8d1487a246

  • C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\ac6ff71d-8613-404f-baf6-8d1c48179293\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\efd25b8c-656b-49be-978c-3e12fd4aa73b\30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf.exe

    Filesize

    762KB

    MD5

    30258031f3b48750850512a93c4dd2e1

    SHA1

    4fcb4baa2271870a3fad7de2da500712476b4be6

    SHA256

    30cc81a5dc2b8b71ac41bba2d45254b51df0f58e3a09c9006d8b7662f546f0bf

    SHA512

    e1c798aa7fb5aa4da9276adece6c56e9a99b728b167e090fe95477cf50050d825ac3104ff0cde1fe1036db9baccabc5c297f19c271fffa1340d7a8a31923f911

  • 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

  • memory/2168-20-0x00000000022E0000-0x000000000237B000-memory.dmp

    Filesize

    620KB

  • memory/2944-75-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2944-49-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2944-53-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2944-116-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2944-117-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2944-52-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2944-118-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2944-51-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3188-47-0x0000000002420000-0x0000000002520000-memory.dmp

    Filesize

    1024KB

  • memory/3188-48-0x0000000003FE0000-0x0000000004031000-memory.dmp

    Filesize

    324KB

  • memory/3880-1-0x00000000024F0000-0x0000000002585000-memory.dmp

    Filesize

    596KB

  • memory/3880-2-0x0000000002690000-0x00000000027AB000-memory.dmp

    Filesize

    1.1MB

  • memory/4780-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4780-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4780-28-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4780-71-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4780-27-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4780-43-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4780-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4780-39-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4780-45-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4780-121-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5084-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5084-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5084-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5084-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5084-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB