Analysis

  • max time kernel
    142s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/09/2023, 23:17

General

  • Target

    57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f.exe

  • Size

    721KB

  • MD5

    617d79d2419f454c4683c36e152d44d3

  • SHA1

    36e7f204f66101ca4dea060fe99e8a9c3082dbd3

  • SHA256

    57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f

  • SHA512

    f04d987b306a41204eb13a03b27aa8db66e14b5517dd0a32358e99f0694acd80973c127356cf7581c9e1c164a2bb336ce35c8291c4bfd2ed8684c7d975f42210

  • SSDEEP

    12288:TnMfU7BDbgbz78hQiu9HmkkSt9GnkabJbL18zivF1g0AhOc5iaJR529U979A:7sU7BvEztxHKTdv+GI0qOgio779A

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wwpl

  • offline_id

    LtYnlJvK0hICyOCeum6Tv4pbia9jcIGHVgA3Xht1

  • payload_url

    http://colisumy.com/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-xoUXGr6cqT 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: 0786JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.7

Botnet

5c0b4a12d6c03dd98ed431d3eded2169

C2

https://steamcommunity.com/profiles/76561199553369541

https://t.me/dastanatg

Attributes
  • profile_id_v2

    5c0b4a12d6c03dd98ed431d3eded2169

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_8) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.7 Safari/605.1.75

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
  • 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).

  • 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\57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f.exe
    "C:\Users\Admin\AppData\Local\Temp\57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4908
    • C:\Users\Admin\AppData\Local\Temp\57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f.exe
      "C:\Users\Admin\AppData\Local\Temp\57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4600
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\fd59a273-0968-4115-8dbe-77a538bc1157" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4648
      • C:\Users\Admin\AppData\Local\Temp\57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f.exe
        "C:\Users\Admin\AppData\Local\Temp\57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:568
        • C:\Users\Admin\AppData\Local\Temp\57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f.exe
          "C:\Users\Admin\AppData\Local\Temp\57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4852
          • C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build2.exe
            "C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3980
            • C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build2.exe
              "C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:2896
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2896 -s 1832
                7⤵
                • Program crash
                PID:4872
          • C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build3.exe
            "C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4432
            • 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:4368
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 2896 -ip 2896
    1⤵
      PID:3552
    • 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:4744
      • 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:4560

    Network

    MITRE ATT&CK Enterprise v15

    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

      9b667ecf8c64e80b6ba550371dc3149c

      SHA1

      dd7dd3675307f72562b20d01e86baf619798accf

      SHA256

      01376f194051bd65ab162ec35c24d005c179d01d28657eb1f339bb2ededfb886

      SHA512

      60daf11cfac79900c5e7c988606570a45a9b170b500acc203c0a12c0683914b745442a177017acc3a4a7df3fd99847768a264e2f0fd4aec76c92b5ecd870fc0c

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

      Filesize

      1KB

      MD5

      5318d6a902beaba43fd3af656c2e3cb0

      SHA1

      0202ac2d3e3ad69f1456c6de198b462cdba0edda

      SHA256

      bad155252d58babc8824eb5e5bc5efd49ba946a2d7f2aaf27dae16d157c7646e

      SHA512

      14b17ce0850c83ade52982c2c3d3d65bc621c2c09dae2f84cd44890a560811d5c25627e582c7dfa544f2a05665562f48f3b2cc4941bac688242eb13ff0944cb7

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

      Filesize

      488B

      MD5

      7b165f9694417412f722da8c7437f865

      SHA1

      19341566097c59717cbc89f809f61edbed000895

      SHA256

      3e36bc39a9c930783c8b97ffac1154c7bc562e851951498ead0fc85ab98c685b

      SHA512

      1ae29b8c436f6f4e21de51901f94684e90c2913a9a4edf357b1eb44868154106b706c51f3c82b38d7174ba213a93806daf4996c2267a38a3f5146c47839cd1d4

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

      Filesize

      482B

      MD5

      1ddc5625684c7e05179a3d98803c09a0

      SHA1

      4f54ef9a4bfa6919719831c5ffb20b2035b86876

      SHA256

      7fb10ffb526fba90959fe75b9aab1c6041387f4b7d8940cbc000698d10c82605

      SHA512

      2c1460954479df0d9c79a1fee05e3eb56beac342c2cef33b3ecaa33e04a5b6b95170299aa9479f1f8c51001e43f34dbf74db243d03d5bf51391cff69e213eb45

    • C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build2.exe

      Filesize

      316KB

      MD5

      b298c49f1808cc5d93dcc3dfc088b10f

      SHA1

      c0b8e909d0ef573e0f5a4e25870a63f3f6ee1306

      SHA256

      ffaed8dcf0282df833b74faf419729dc20951ee7edbb58103fa5c582e93d5f3a

      SHA512

      1b75aeaa793b5aa92769f68bb0f677206394f5b28e7ac1a23f6be923af812a5a9033920af0c2de1e6805e46a5c9ec283ddecd879b1264d75d7b4190266028895

    • C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build2.exe

      Filesize

      316KB

      MD5

      b298c49f1808cc5d93dcc3dfc088b10f

      SHA1

      c0b8e909d0ef573e0f5a4e25870a63f3f6ee1306

      SHA256

      ffaed8dcf0282df833b74faf419729dc20951ee7edbb58103fa5c582e93d5f3a

      SHA512

      1b75aeaa793b5aa92769f68bb0f677206394f5b28e7ac1a23f6be923af812a5a9033920af0c2de1e6805e46a5c9ec283ddecd879b1264d75d7b4190266028895

    • C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build2.exe

      Filesize

      316KB

      MD5

      b298c49f1808cc5d93dcc3dfc088b10f

      SHA1

      c0b8e909d0ef573e0f5a4e25870a63f3f6ee1306

      SHA256

      ffaed8dcf0282df833b74faf419729dc20951ee7edbb58103fa5c582e93d5f3a

      SHA512

      1b75aeaa793b5aa92769f68bb0f677206394f5b28e7ac1a23f6be923af812a5a9033920af0c2de1e6805e46a5c9ec283ddecd879b1264d75d7b4190266028895

    • C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build2.exe

      Filesize

      316KB

      MD5

      b298c49f1808cc5d93dcc3dfc088b10f

      SHA1

      c0b8e909d0ef573e0f5a4e25870a63f3f6ee1306

      SHA256

      ffaed8dcf0282df833b74faf419729dc20951ee7edbb58103fa5c582e93d5f3a

      SHA512

      1b75aeaa793b5aa92769f68bb0f677206394f5b28e7ac1a23f6be923af812a5a9033920af0c2de1e6805e46a5c9ec283ddecd879b1264d75d7b4190266028895

    • C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\f2bc0314-ad6a-4f96-b45f-ce1b098ee2a8\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\fd59a273-0968-4115-8dbe-77a538bc1157\57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f.exe

      Filesize

      721KB

      MD5

      617d79d2419f454c4683c36e152d44d3

      SHA1

      36e7f204f66101ca4dea060fe99e8a9c3082dbd3

      SHA256

      57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f

      SHA512

      f04d987b306a41204eb13a03b27aa8db66e14b5517dd0a32358e99f0694acd80973c127356cf7581c9e1c164a2bb336ce35c8291c4bfd2ed8684c7d975f42210

    • 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/568-19-0x0000000002170000-0x0000000002201000-memory.dmp

      Filesize

      580KB

    • memory/2896-68-0x0000000000400000-0x0000000000465000-memory.dmp

      Filesize

      404KB

    • memory/2896-66-0x0000000000400000-0x0000000000465000-memory.dmp

      Filesize

      404KB

    • memory/2896-125-0x0000000000400000-0x0000000000465000-memory.dmp

      Filesize

      404KB

    • memory/2896-124-0x0000000000400000-0x0000000000465000-memory.dmp

      Filesize

      404KB

    • memory/2896-81-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/2896-71-0x0000000000400000-0x0000000000465000-memory.dmp

      Filesize

      404KB

    • memory/2896-70-0x0000000000400000-0x0000000000465000-memory.dmp

      Filesize

      404KB

    • memory/3980-65-0x0000000000780000-0x00000000007D1000-memory.dmp

      Filesize

      324KB

    • memory/3980-64-0x00000000005B0000-0x00000000005DE000-memory.dmp

      Filesize

      184KB

    • memory/3980-69-0x00000000005B0000-0x00000000005DE000-memory.dmp

      Filesize

      184KB

    • memory/4600-5-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4600-17-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4600-6-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4600-2-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4600-3-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4852-23-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4852-22-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4852-21-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4852-30-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4852-38-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4852-31-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4852-37-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4852-35-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4852-128-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4852-60-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4908-0-0x00000000022B0000-0x0000000002341000-memory.dmp

      Filesize

      580KB

    • memory/4908-4-0x00000000022B0000-0x0000000002341000-memory.dmp

      Filesize

      580KB

    • memory/4908-1-0x0000000002390000-0x00000000024AB000-memory.dmp

      Filesize

      1.1MB