Analysis

  • max time kernel
    144s
  • max time network
    126s
  • 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 05:48

General

  • Target

    725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8.exe

  • Size

    759KB

  • MD5

    6f0bf4b080f718754470179065f1bc8d

  • SHA1

    619d3278f0682f9962db7310d0c80f3dbcd029d4

  • SHA256

    725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8

  • SHA512

    ba213739e24d672de08a8d2f9940acbf92c3f4e1d9210e17bac9c67f3422a96ec8c80a779b5e3549e326a084d0bed3f361366f4f036a87c84960b4cfb7927618

  • SSDEEP

    12288:uzSsUhC+sSGauelSkEzI1mhkf5ShOfz/SghmjprvjzJoEHrx4pIQIc:u+zCqGauel7CsAyShUjSQKZvjiEHry7

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .jyos

  • 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: 0677JOsie

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 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 2 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.

  • Program crash 1 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8.exe
    "C:\Users\Admin\AppData\Local\Temp\725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5084
    • C:\Users\Admin\AppData\Local\Temp\725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8.exe
      "C:\Users\Admin\AppData\Local\Temp\725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1532
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6a25b6eb-c766-4a9c-a477-e1ad20cc0744" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:460
      • C:\Users\Admin\AppData\Local\Temp\725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8.exe
        "C:\Users\Admin\AppData\Local\Temp\725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1824
        • C:\Users\Admin\AppData\Local\Temp\725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8.exe
          "C:\Users\Admin\AppData\Local\Temp\725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4184
          • C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build2.exe
            "C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4520
            • C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build2.exe
              "C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4812
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1888
                7⤵
                • Program crash
                PID:4400
          • C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build3.exe
            "C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1304
            • 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:220
  • 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:2320
    • 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:4540
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4812 -ip 4812
    1⤵
      PID:4176

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    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

      edefe8a9627f2da7a803a3058b6da313

      SHA1

      36419d7dfe378dad3ad03e4ba8de291683bda836

      SHA256

      98a748372eb1ab18b75dbe311ef7f16162e0335b74b109000e79b121c45b02aa

      SHA512

      db0eb03847fdbd4bb8d2f691381ad2105f40821dbdb937e93778babf637ebc6df2182170cf4b322f5ffb321e4e1310c6eade5d754fd4410ceca301a30d613ff5

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

      Filesize

      482B

      MD5

      4790824b998798aded7954c8e75a6cc6

      SHA1

      529ad634361dd09f54e4d109045d426b7b9a65fe

      SHA256

      770a6a9e16b5d0f9729f1c28bff02c1358c06d6160340eb53d59a085418727c5

      SHA512

      89fd3280cebc7a2f00b7f092ae6ec8308542cf6b78c7c17b0cbfb634a058e0b4b0a86cc8f272d005fd2270a80932cfd3d917f7c399bc566ded9c6e1fb49cfe14

    • C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build2.exe

      Filesize

      299KB

      MD5

      6b343cd7dea3ae28d0819bc55a2f86fe

      SHA1

      cedd49849a5dd678d0a55da607e9b28a9680073c

      SHA256

      4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

      SHA512

      7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

    • C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build2.exe

      Filesize

      299KB

      MD5

      6b343cd7dea3ae28d0819bc55a2f86fe

      SHA1

      cedd49849a5dd678d0a55da607e9b28a9680073c

      SHA256

      4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

      SHA512

      7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

    • C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build2.exe

      Filesize

      299KB

      MD5

      6b343cd7dea3ae28d0819bc55a2f86fe

      SHA1

      cedd49849a5dd678d0a55da607e9b28a9680073c

      SHA256

      4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

      SHA512

      7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

    • C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build2.exe

      Filesize

      299KB

      MD5

      6b343cd7dea3ae28d0819bc55a2f86fe

      SHA1

      cedd49849a5dd678d0a55da607e9b28a9680073c

      SHA256

      4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

      SHA512

      7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

    • C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\4f743a65-46a7-417f-b1c0-eb57c5af9dce\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\6a25b6eb-c766-4a9c-a477-e1ad20cc0744\725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8.exe

      Filesize

      759KB

      MD5

      6f0bf4b080f718754470179065f1bc8d

      SHA1

      619d3278f0682f9962db7310d0c80f3dbcd029d4

      SHA256

      725e59ad891d86565ce01ec1cc257de8ee61715f35817879ebbe5073aaff61c8

      SHA512

      ba213739e24d672de08a8d2f9940acbf92c3f4e1d9210e17bac9c67f3422a96ec8c80a779b5e3549e326a084d0bed3f361366f4f036a87c84960b4cfb7927618

    • 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/1532-137-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1532-150-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1532-135-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1532-136-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1532-138-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-172-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-160-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-283-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-153-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-157-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-161-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-154-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-178-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-195-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-177-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4520-183-0x0000000000620000-0x0000000000677000-memory.dmp

      Filesize

      348KB

    • memory/4812-185-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/4812-207-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/4812-184-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/4812-180-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/4812-275-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/4812-182-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/4812-279-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/4812-280-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/5084-134-0x00000000025A0000-0x00000000026BB000-memory.dmp

      Filesize

      1.1MB