Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/12/2022, 18:21

General

  • Target

    3166a43363ca21ed7d3d5ebe4b13b11c.exe

  • Size

    706KB

  • MD5

    3166a43363ca21ed7d3d5ebe4b13b11c

  • SHA1

    7a32d8d9b9eddea5f9e2373046a017392ee1e437

  • SHA256

    b990ed5485491482b2c8ee144a2fa5998aaa8fc5575b0ed740e85c40d750721b

  • SHA512

    30203af4c2b6d26aa7dcbb6c02fd0e37d988c20770458d27f4f4cb45ec6ad86a0108b5bb4d1e8a5140aa4e45a8b652f902e062b5e846d9374a55f9d35c516746

  • SSDEEP

    12288:ErvDTpeBV+vwiW3jvOnFbngFlH0dhPJWPazkalKmpsNmzszBN1iX11R:ETBeBwS3jOZgPUdhPCPalpssQzBN10nR

Malware Config

Extracted

Family

djvu

C2

http://fresherlights.com/test1/get.php

Attributes
  • extension

    .kcvp

  • offline_id

    hlqzhQ6w5SquNDF4Ul2XBDJQkSIKbAT6rmRBTit1

  • payload_url

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

    http://fresherlights.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-lj5qINGbTc 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: 0607Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

56

Botnet

517

C2

https://t.me/asifrazatg

https://steamcommunity.com/profiles/76561199439929669

Attributes
  • profile_id

    517

Signatures

  • Detected Djvu ransomware 9 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 3 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe
    "C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:896
    • C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe
      "C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6e658884-e31f-41e8-b98e-b314aae8f11f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4832
      • C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe
        "C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1604
        • C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe
          "C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2488
          • C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe
            "C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4120
            • C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe
              "C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe"
              6⤵
              • Executes dropped EXE
              PID:4248
          • C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build3.exe
            "C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build3.exe"
            5⤵
            • Executes dropped EXE
            PID:3992

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2KB

    MD5

    61ffe15234088bd43d27e9eb101ad1f6

    SHA1

    80e8cf2dbbf66018e148cbab446cfc5e52eed1b2

    SHA256

    1dc492a98f81cf0473e5ebc17c9284892b88c592b5194c31761a1ef1985c59b5

    SHA512

    f925dbd2d421bc596f344241ce915b69e8f9a5112f4b9d6e62c82a717493ce2422366395dea33dfce896704b940afd6366923a7a2eb476d10563bc76de15b61d

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

    Filesize

    488B

    MD5

    4f278b180dbc109f73372bc99e8b7317

    SHA1

    326de622911d0c7a359da8e9779cce0065d2c283

    SHA256

    5aba9ccbdda3ac6a9fdb0da036d934e1914a4ee49f37f2bdd4c559798672f3ab

    SHA512

    ca4f04fc43103640d2ba76e1c69fc4207b71c4aa0828117446a21892f841d48aee98ec93fbc7c4fbdb65621650f398eebcfcca72a8dac4cf04e205f9dcce01c4

  • C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\6e658884-e31f-41e8-b98e-b314aae8f11f\3166a43363ca21ed7d3d5ebe4b13b11c.exe

    Filesize

    706KB

    MD5

    3166a43363ca21ed7d3d5ebe4b13b11c

    SHA1

    7a32d8d9b9eddea5f9e2373046a017392ee1e437

    SHA256

    b990ed5485491482b2c8ee144a2fa5998aaa8fc5575b0ed740e85c40d750721b

    SHA512

    30203af4c2b6d26aa7dcbb6c02fd0e37d988c20770458d27f4f4cb45ec6ad86a0108b5bb4d1e8a5140aa4e45a8b652f902e062b5e846d9374a55f9d35c516746

  • memory/896-136-0x0000000002670000-0x000000000278B000-memory.dmp

    Filesize

    1.1MB

  • memory/896-134-0x00000000024B1000-0x0000000002543000-memory.dmp

    Filesize

    584KB

  • memory/1604-146-0x00000000021E0000-0x0000000002272000-memory.dmp

    Filesize

    584KB

  • memory/2120-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2120-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2120-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2120-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2120-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2488-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2488-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2488-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4120-159-0x00000000005AD000-0x00000000005D9000-memory.dmp

    Filesize

    176KB

  • memory/4120-160-0x0000000002070000-0x00000000020BB000-memory.dmp

    Filesize

    300KB

  • memory/4248-157-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4248-158-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4248-161-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4248-162-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4248-155-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB