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Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    03/12/2022, 03:23

General

  • Target

    3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe

  • Size

    851KB

  • MD5

    b713e710ad1b504fc1f80424c96ee9b3

  • SHA1

    c055462def35a1375cfba2c5cb6920c3149444dd

  • SHA256

    3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f

  • SHA512

    d8eab48fd0d317114a90dde80892e81a6308963915e0d448c46c44fe5623714d55a46eca58f0bdc363bf6e5b0a4248ae087a43deb09d80368ee89cb8d09b8f7a

  • SSDEEP

    12288:ryuGhRe2/vW6ZZTm6ZjxPA95QAhvvx2U6GKncJBsQiM1Wf875W6zK5HUwRwZ:ryuQe2W0T7Ni5BB76jncJ+JM7W5HU8

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .uyro

  • offline_id

    HtkmULXEgJoZa495hFUJlvKCD0OwnxklbkoITjt1

  • 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-5UcwRdS3ED 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: 0609djfsieE

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 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\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe
    "C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3900
    • C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe
      "C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3676
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\3c6446f8-bc2f-49c4-a7e2-33ef4a052040" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4524
      • C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe
        "C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4832
        • C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe
          "C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4764
          • C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe
            "C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1092
            • C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe
              "C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1540
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2836
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2696
          • C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build3.exe
            "C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1616
            • 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:3440
  • 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:4736
    • 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:3052

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\3c6446f8-bc2f-49c4-a7e2-33ef4a052040\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe

    Filesize

    851KB

    MD5

    b713e710ad1b504fc1f80424c96ee9b3

    SHA1

    c055462def35a1375cfba2c5cb6920c3149444dd

    SHA256

    3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f

    SHA512

    d8eab48fd0d317114a90dde80892e81a6308963915e0d448c46c44fe5623714d55a46eca58f0bdc363bf6e5b0a4248ae087a43deb09d80368ee89cb8d09b8f7a

  • C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build3.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

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/1092-387-0x0000000002060000-0x00000000020AB000-memory.dmp

    Filesize

    300KB

  • memory/1540-552-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1540-430-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/3676-193-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3676-174-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-232-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3676-184-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-183-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-182-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-181-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-180-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-179-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-178-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3676-149-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-150-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-151-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-152-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-153-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-154-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3676-155-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-156-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-157-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-158-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-159-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-160-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-161-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-162-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-163-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-164-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-165-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-166-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-167-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-168-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-169-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-170-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-171-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-172-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-173-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-177-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-175-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3676-176-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-135-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-126-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-145-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-144-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-143-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-142-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-141-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-140-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-116-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-117-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-137-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-118-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-139-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-119-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-120-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-136-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-146-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-134-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-121-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-133-0x00000000009C0000-0x0000000000A5E000-memory.dmp

    Filesize

    632KB

  • memory/3900-132-0x0000000000A70000-0x0000000000B8B000-memory.dmp

    Filesize

    1.1MB

  • memory/3900-131-0x00000000009C0000-0x0000000000A5E000-memory.dmp

    Filesize

    632KB

  • memory/3900-129-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-128-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-127-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-138-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-125-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-124-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-123-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/3900-122-0x00000000770F0000-0x000000007727E000-memory.dmp

    Filesize

    1.6MB

  • memory/4764-373-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4764-312-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB