Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/08/2023, 16:33

General

  • Target

    fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf.exe

  • Size

    783KB

  • MD5

    043b7129118d84cfbb78a7cb265ee9f5

  • SHA1

    b294ce41f805cb8fd2a97f783f9e93ed6357bd8e

  • SHA256

    fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf

  • SHA512

    65c010ba32599e22d8bd4f778b9f47468d959de3879c7317c884302ead61c6557cabf8ea096749e42b0ffe1bd47859022d921aa61ffda4472b6acc03966618bc

  • SSDEEP

    12288:gid0UR7xF2Qm8evOjQuCWt8bba3cfREak3ep9HlGUKzP5pUQ/Mo0owaz:gsjFdeWUmebbas+POrUUKzRX/M374

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .nztt

  • offline_id

    fe7vbai057v1PzegcJrFdG7DjT3mL5gUtMQkLrt1

  • 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-E4b0Td2MBH 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: 0772JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.4

Botnet

25f5344bfcb62e75b7946c3a681aec54

C2

https://t.me/vogogor

https://steamcommunity.com/profiles/76561199545993403

Attributes
  • profile_id_v2

    25f5344bfcb62e75b7946c3a681aec54

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.2.13 (KHTML, like Gecko) Version/16.5.2 Safari/605.2.13

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
  • 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
  • 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
  • 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 10 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf.exe
    "C:\Users\Admin\AppData\Local\Temp\fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:764
    • C:\Users\Admin\AppData\Local\Temp\fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf.exe
      "C:\Users\Admin\AppData\Local\Temp\fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4508
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\af018361-a0f2-4502-a54a-42ce56cb8374" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4964
      • C:\Users\Admin\AppData\Local\Temp\fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf.exe
        "C:\Users\Admin\AppData\Local\Temp\fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:224
        • C:\Users\Admin\AppData\Local\Temp\fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf.exe
          "C:\Users\Admin\AppData\Local\Temp\fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3064
          • C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build2.exe
            "C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4148
            • C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build2.exe
              "C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              PID:3964
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3964 -s 1852
                7⤵
                • Program crash
                PID:4548
          • C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build3.exe
            "C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2144
            • 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:3476
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3964 -ip 3964
    1⤵
      PID:4860
    • 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:4644
      • 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:1152

    Network

    MITRE ATT&CK Enterprise v15

    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

      62d3b90788ae25549214190f8f4890dc

      SHA1

      7bdad7ac8551c9578a0bc56e20e7c5fe4bc5ec22

      SHA256

      b7d51340c5382f070fd4846e1d4360502db7edd89517ce4ad0d5c6ba2aa85904

      SHA512

      b4aaf8e0f5f9c964a554dc9f3cf7ba8fc789a896ed5c7ee0e994b358485f52ad03036a2744ca730a993807c4986e723bc849a0857cac4c9aee7cfaa226f4b968

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

      Filesize

      1KB

      MD5

      484ccc9b0d219137029d48784f958d3a

      SHA1

      e8cd2b30290ae0b196d322669d3a7944ff6694c4

      SHA256

      d6349aa523fd3e8e3242f8abca778ce98e3c604f548cfe87d4641ac7e7951924

      SHA512

      c3240c9afbfc63050240ad111fbe30e9de48579b60fa5064e201447d9ba1babbf07955128ee6167c8a216bc7ed1fef2c4f4d649f63aae653fd0071ad0a7d520d

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

      Filesize

      488B

      MD5

      4532cb2c452ef089a49e95145956ec31

      SHA1

      a1d939b5a0b50796ddb6389ae6b663d420315e1c

      SHA256

      96e14093027482f621482d97eb122bf9bc89db256a45371ad7e91707b088adf8

      SHA512

      55b011acf85f2f2c18f208c20cf8665d00498d2b07dc125d232b679cbc4b29bfd2c3ecd8d55bbe5878503f0dfb78e72746d3e3a79b6d157057ae2d09cca90987

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

      Filesize

      482B

      MD5

      a5a26561d10b12cd8951b1eab4dc2e31

      SHA1

      4e8986e9f19fc9c8ae78fb4fe480e56915102596

      SHA256

      96980f40331e88141a2d79468511a1d251b0499d57885d847eda519d4724715e

      SHA512

      64bc807cb6cc6139a37142b72520eb193ddf4456da8332ccdf8b98ba5e62b3306ecfb45f8ab61d8ce4f6e025f2435961fde0385ae4a59a9373d9d5a45a536583

    • C:\Users\Admin\AppData\Local\af018361-a0f2-4502-a54a-42ce56cb8374\fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf.exe

      Filesize

      783KB

      MD5

      043b7129118d84cfbb78a7cb265ee9f5

      SHA1

      b294ce41f805cb8fd2a97f783f9e93ed6357bd8e

      SHA256

      fda9de727ce94dc3fc4d28980283c5c8cb4a303a46371fe64975351126fb0faf

      SHA512

      65c010ba32599e22d8bd4f778b9f47468d959de3879c7317c884302ead61c6557cabf8ea096749e42b0ffe1bd47859022d921aa61ffda4472b6acc03966618bc

    • C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build2.exe

      Filesize

      396KB

      MD5

      a3d4e0b89f4210c0ad7d8df63ff21876

      SHA1

      06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

      SHA256

      3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

      SHA512

      dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

    • C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build2.exe

      Filesize

      396KB

      MD5

      a3d4e0b89f4210c0ad7d8df63ff21876

      SHA1

      06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

      SHA256

      3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

      SHA512

      dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

    • C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build2.exe

      Filesize

      396KB

      MD5

      a3d4e0b89f4210c0ad7d8df63ff21876

      SHA1

      06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

      SHA256

      3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

      SHA512

      dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

    • C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build2.exe

      Filesize

      396KB

      MD5

      a3d4e0b89f4210c0ad7d8df63ff21876

      SHA1

      06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

      SHA256

      3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

      SHA512

      dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

    • C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\d06f55a7-dd7c-4813-979a-e79ad101bda2\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/224-18-0x0000000003AF0000-0x0000000003B90000-memory.dmp

      Filesize

      640KB

    • memory/764-1-0x0000000003BF0000-0x0000000003C8E000-memory.dmp

      Filesize

      632KB

    • memory/764-2-0x0000000003D20000-0x0000000003E3B000-memory.dmp

      Filesize

      1.1MB

    • memory/3064-21-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3064-22-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3064-34-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3064-32-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3064-28-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3064-121-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3064-35-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3064-20-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3064-27-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3064-62-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3964-75-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/3964-117-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3964-51-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3964-49-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3964-52-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3964-60-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/3964-118-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/4148-48-0x0000000003B90000-0x0000000003BEC000-memory.dmp

      Filesize

      368KB

    • memory/4148-47-0x00000000020F0000-0x00000000021F0000-memory.dmp

      Filesize

      1024KB

    • memory/4508-15-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4508-5-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4508-6-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4508-4-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4508-3-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB