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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/03/2023, 02:19

General

  • Target

    setup.exe

  • Size

    682KB

  • MD5

    f9271357824ce6ebd0b08ca26e69f4ad

  • SHA1

    f79d25ebda44e5d4f0223057bad6a19da6c84906

  • SHA256

    611555ad45f406141e18bf4a8611d2a8028d7f637090c1e95b99882884a1656b

  • SHA512

    036fc062b0805fc0d45e2c0dc1198ad314dbbe58fee0be67380953cf8d967466e6146a4e0163a62c34b25b3a726675c46cf30a5e9bd7e3e47a30c3aed7d3cbfc

  • SSDEEP

    12288:Dm53qc7LR6LvsUGoYA2FOn8zax4y2HPpy6nhBMYf4:nwLRyIoYxFzaWHxyyBMYf

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes
  • extension

    .dapo

  • offline_id

    8EM6M9LqEzIk18qaQ87WiPQ1u84RRdej5V1ovht1

  • payload_url

    http://uaery.top/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-vbVkogQdu2 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: 0667JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3

Botnet

d6ef050131e7d5a1d595c51613328971

C2

https://t.me/zaskullz

https://steamcommunity.com/profiles/76561199486572327

http://135.181.87.234:80

Attributes
  • profile_id_v2

    d6ef050131e7d5a1d595c51613328971

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
  • 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.

  • 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\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\setup.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\setup.exe
      "C:\Users\Admin\AppData\Local\Temp\setup.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4148
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\d6c5a3fe-5947-457c-90e7-d5bb169264b2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4760
      • C:\Users\Admin\AppData\Local\Temp\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\setup.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3620
        • C:\Users\Admin\AppData\Local\Temp\setup.exe
          "C:\Users\Admin\AppData\Local\Temp\setup.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1368
          • C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build2.exe
            "C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3896
            • C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build2.exe
              "C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\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:3736
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:560
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:5112
          • C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build3.exe
            "C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3912
            • 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:3260
  • 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:2388
    • 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:3996

Network

MITRE ATT&CK Enterprise v6

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\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    2KB

    MD5

    cdc105f9b440a6e48a5668a56bb20df4

    SHA1

    3876d7213409b27f4934ef8062b2bd49ce1fd8e7

    SHA256

    6613baac61b4482d1476ef01e7f877ff4cf301375d9069d45defd5054f23b2f0

    SHA512

    52ae1d9b4d4d9fc2822c916a9fc3f46a604090cd063200e48a28d12eea73e28bec1dc3458c7baef56fe0a696b36373c29de3138214efea0e2a648cf7da7620df

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

    Filesize

    1KB

    MD5

    110cf742e7da59e417e5b51e23c5a044

    SHA1

    2fe4ee009a9a99de850dd8d6d92c9d4837f444d2

    SHA256

    ebe97ccfc0c50239665d939f865896143ffcb6921361e18dcba32b3bfa19a633

    SHA512

    117498742030a11f129b3b3281f304ad50c53dd39d638af0ad0f6234a1207efc6622d5d886806b376e7ae773feef177afc74449adbda16a40b31588017d5c4a7

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

    Filesize

    488B

    MD5

    08bb33d83ac14b22c1d0782f7c2682c1

    SHA1

    8345c4ba21474839c595bdd4ec2e2cf3f982367a

    SHA256

    9ddda143451794756e9168189d00a8d5647b90f5ee7b9c5d8cccf414bd2d0035

    SHA512

    bac79dd18ff9c0717b9df9c9170238b48973073faf960b12f1d1bede4bc79ba3045e3d771540987abf8d905c9edda7958deba391484dce29a333c994aed99e9b

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

    Filesize

    482B

    MD5

    2418d0494ed963de5bd9208568a280cc

    SHA1

    b60afb92feca9e4018ed65289f609063b4e2b87a

    SHA256

    65bbc308479f25580c16e38c7f2175972c37651cc414935fd2f8992b9676e51b

    SHA512

    f0c346fc1dea784be60fb5f6e34676b42f85e088f3e292585675234352d194737fa3dece32d034d86e847fc0834742de7392c8ca7671a044ab96874ec735dc5a

  • C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build2.exe

    Filesize

    462KB

    MD5

    1ea00519a643ae1ab0f4f9a6ecc81ead

    SHA1

    551c4fd300092a51a7fd3ceee009db249fd2a70f

    SHA256

    04e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683

    SHA512

    187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d

  • C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build2.exe

    Filesize

    462KB

    MD5

    1ea00519a643ae1ab0f4f9a6ecc81ead

    SHA1

    551c4fd300092a51a7fd3ceee009db249fd2a70f

    SHA256

    04e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683

    SHA512

    187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d

  • C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build2.exe

    Filesize

    462KB

    MD5

    1ea00519a643ae1ab0f4f9a6ecc81ead

    SHA1

    551c4fd300092a51a7fd3ceee009db249fd2a70f

    SHA256

    04e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683

    SHA512

    187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d

  • C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build2.exe

    Filesize

    462KB

    MD5

    1ea00519a643ae1ab0f4f9a6ecc81ead

    SHA1

    551c4fd300092a51a7fd3ceee009db249fd2a70f

    SHA256

    04e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683

    SHA512

    187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d

  • C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\bf146ab8-8e06-4034-93d2-36f6f9e9f38a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\d6c5a3fe-5947-457c-90e7-d5bb169264b2\setup.exe

    Filesize

    682KB

    MD5

    f9271357824ce6ebd0b08ca26e69f4ad

    SHA1

    f79d25ebda44e5d4f0223057bad6a19da6c84906

    SHA256

    611555ad45f406141e18bf4a8611d2a8028d7f637090c1e95b99882884a1656b

    SHA512

    036fc062b0805fc0d45e2c0dc1198ad314dbbe58fee0be67380953cf8d967466e6146a4e0163a62c34b25b3a726675c46cf30a5e9bd7e3e47a30c3aed7d3cbfc

  • 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/1368-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1368-165-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1368-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1368-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1368-230-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1368-278-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1368-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1368-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1368-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1368-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2040-137-0x0000000002060000-0x000000000217B000-memory.dmp

    Filesize

    1.1MB

  • memory/3736-178-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3736-180-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3736-276-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3736-275-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3736-183-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3736-182-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3736-274-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3736-193-0x0000000050A60000-0x0000000050B53000-memory.dmp

    Filesize

    972KB

  • memory/3896-181-0x00000000024C0000-0x000000000251D000-memory.dmp

    Filesize

    372KB

  • memory/4148-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4148-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4148-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4148-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4148-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB