Analysis

  • max time kernel
    145s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2023 20:21

General

  • Target

    20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7.exe

  • Size

    765KB

  • MD5

    2c9de3b4e6161e99b75c314e33ad66e5

  • SHA1

    85fb1ec11816fb3c1c69b2679a6f2441e03d540d

  • SHA256

    20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7

  • SHA512

    6d4b7721c111b3b3056410708613f0263eed0105e3de133f56058a8829720cbf4e2f307dda708783e41ad0cddafcf0a59249e840789d4f5f2304c53f47d504bd

  • SSDEEP

    12288:6nAQJVdKx7cwLQ78yt7PHjZzCN9usFmLditZwCC9WkHLrx/WQO3nJsNVgX90F4:uAE8tEbFiu3LktZvC9hwYVgX9

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .jywd

  • offline_id

    MEMHlobHgXqvmTWaMsLcwGZhDOd00bblO1yevst1

  • 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-fkW8qLaCVQ 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: 0675JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.1

Botnet

00d92484c9b27bc8482a2cc94cacc508

C2

https://steamcommunity.com/profiles/76561199472266392

https://t.me/tabootalks

http://135.181.26.183:80

Attributes
  • profile_id_v2

    00d92484c9b27bc8482a2cc94cacc508

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

Signatures

  • Detected Djvu ransomware 17 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\20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7.exe
    "C:\Users\Admin\AppData\Local\Temp\20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4388
    • C:\Users\Admin\AppData\Local\Temp\20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7.exe
      "C:\Users\Admin\AppData\Local\Temp\20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3852
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\8738a259-1032-4f2d-b48a-7a40f0f08530" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:616
      • C:\Users\Admin\AppData\Local\Temp\20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7.exe
        "C:\Users\Admin\AppData\Local\Temp\20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2340
        • C:\Users\Admin\AppData\Local\Temp\20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7.exe
          "C:\Users\Admin\AppData\Local\Temp\20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3584
          • C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build2.exe
            "C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2768
            • C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build2.exe
              "C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\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:3432
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1040
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:5060
          • C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build3.exe
            "C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4996
  • 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"
    1⤵
    • Creates scheduled task(s)
    PID:1708
  • 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:3828
    • 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:1848

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

    e5b1cc0ae5af6a8277d75cff4af2c5e8

    SHA1

    4768fff3d4bbe02f89683b4a0e7b15b24b54eb9f

    SHA256

    d950c0d748aae641d71b11cd1c519b289917c23bee1a2b6bc5c496fd8e5d4655

    SHA512

    57a4737deeefac0124d73b52525993fecbbebd21a556ece87f8e79e845e07f037abb5e49f7458e8a010935c6691f18fbb913d77ecfb2ba902067788c483ec3d7

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

    Filesize

    1KB

    MD5

    3adac03b181d7980568dda0da0efc9de

    SHA1

    a283c4c9bd26a65b8240d21708e57f5946778341

    SHA256

    24c4973ced938b77d9670ac79eb76cd52411b17ab59ec78ba14c1b433f342933

    SHA512

    6fbd2a32fc18606628ea56311764cd879a1196405dddd4d269ad6163b2ffdcf916786f1c0328f27ec089be5cb9b4ecb3542363f4dfb3df1c1b91a0e038b67241

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

    Filesize

    488B

    MD5

    7e0eec1bfb7ae9c1d185eb0cd5bbd12f

    SHA1

    6808ba929c0218bc1ce2102c0638b9dcc9937521

    SHA256

    eef954b2816b615f30eb2e5932f51ae5febf13e0f29b95a0ce328ea7cf4a52c3

    SHA512

    61b90def6000a497ab77001b035b05913e115c5b8cea931ac259bd7382c632f3e728fbe673a8dfb786dedd078e328c8724b92ec3ded15ebc368ca874800a85d8

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

    Filesize

    482B

    MD5

    1df2eed53ab36dd31d2f767bca348904

    SHA1

    d3a8a0f5038711827457ec0cf53501cec05bcba6

    SHA256

    ee294ceefdb543a0919e85753518a14505c997a77b87663fa3941d736dc78a5d

    SHA512

    868489494d4fee537cba2efd8e6ece08d9f15a66024ed19333f4611d7876cb5412d2d82a7c7e73d7b0f8617b27fc56b059ad3c48adcca81c900bf21098bdf997

  • C:\Users\Admin\AppData\Local\8738a259-1032-4f2d-b48a-7a40f0f08530\20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7.exe

    Filesize

    765KB

    MD5

    2c9de3b4e6161e99b75c314e33ad66e5

    SHA1

    85fb1ec11816fb3c1c69b2679a6f2441e03d540d

    SHA256

    20c7850800ddc743fa24935aaef38148dffa12ac5159f43d10e061e63d4e74f7

    SHA512

    6d4b7721c111b3b3056410708613f0263eed0105e3de133f56058a8829720cbf4e2f307dda708783e41ad0cddafcf0a59249e840789d4f5f2304c53f47d504bd

  • C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\9336bd5e-5435-4d4c-8c59-080f12f3b736\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

  • memory/2768-195-0x00000000020C0000-0x0000000002117000-memory.dmp

    Filesize

    348KB

  • memory/3432-193-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3432-194-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3432-196-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3432-191-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3432-207-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3432-275-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3432-277-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3432-278-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3584-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-170-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-165-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-197-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-186-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3852-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3852-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3852-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3852-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3852-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4388-136-0x0000000002470000-0x000000000258B000-memory.dmp

    Filesize

    1.1MB