Analysis

  • max time kernel
    144s
  • max time network
    126s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13-05-2023 23:33

General

  • Target

    01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7.exe

  • Size

    794KB

  • MD5

    b822f2e780062f772c043f12f78a52ff

  • SHA1

    f2c97efa67086b9312987b6d5d360f3588e72c20

  • SHA256

    01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7

  • SHA512

    771886eff4ccbc79654db9be4ba0abc176c853f47669617ff3609f31a4cefdcef40cc0aab7f9696fe7a313908b75c16172eeeed102339619af3af8bd9bf71ffb

  • SSDEEP

    24576:1VLbbL87kghegmklpOhJmhVuOshsiy695:1lZghegmTyOsi7

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .gash

  • offline_id

    gdTA3a9eBPJZlAHc7UhZKxuA2PF57q3j1xsfAkt1

  • 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-pznhigpUwP 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: 0704JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.8

Botnet

ef32d425b907146eeb9090dbc9455ab1

C2

https://steamcommunity.com/profiles/76561198272578552

https://t.me/libpcre

Attributes
  • profile_id_v2

    ef32d425b907146eeb9090dbc9455ab1

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7

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
  • 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).

  • 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\01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7.exe
    "C:\Users\Admin\AppData\Local\Temp\01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3644
    • C:\Users\Admin\AppData\Local\Temp\01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7.exe
      "C:\Users\Admin\AppData\Local\Temp\01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3652
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\91cf05b7-dbd7-417d-b479-a8aeabe92388" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4212
      • C:\Users\Admin\AppData\Local\Temp\01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7.exe
        "C:\Users\Admin\AppData\Local\Temp\01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1996
        • C:\Users\Admin\AppData\Local\Temp\01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7.exe
          "C:\Users\Admin\AppData\Local\Temp\01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4204
          • C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build2.exe
            "C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2744
            • C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build2.exe
              "C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:1140
          • C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build3.exe
            "C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4404
            • 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:4380
  • 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:4300
    • 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:4360

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2KB

    MD5

    1ec7302d6e6f4baa10b0016367fda028

    SHA1

    4cd143f0f1df8e98ab38db0917b89f060c3cbf64

    SHA256

    7a69cb8c27dfbcc250b7990102c2c97c9319b4972a690d59ba13962b11f5cbb7

    SHA512

    5b42a78c371becafe7843af58efbe05d8152ba88ab485d043fe4bee62ee116c5e0e8f38f342d58a20ec4cf9688d355b2ccbdd49d664ec3a0e2415cb6d23142a2

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

    Filesize

    1KB

    MD5

    b1315f77d64e889e666773cdff9a5163

    SHA1

    ee3e9bdffe5de6575b4a0b8266d9e90c37ceb487

    SHA256

    2484f13a778334cc615fe30cb894fb25be319eef02df9809de7fc1f3a09a6628

    SHA512

    80280d6fff9700b6ffa5f86b45bb392f8c63d34fa38f5c530c861d26b829115bbd9481f0102087086b0f87b6638055f56b4a98811f727a254ce2c5c07a8587ae

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

    Filesize

    488B

    MD5

    92c361e68f91c9414196bb59a37383a9

    SHA1

    e36bfd0e39485ccbd6f40e394596d345334a6c18

    SHA256

    a9f708fad0a150d31241b88ae139bc3821b772cb2b816beb76c797256841c1c4

    SHA512

    2e40dde4e7310c0d6ffc8ea903aef0f8a2ce5b714453df062a2d1f0b7d5c1d5d2e870190c9ca2c25bd509c668c6105ece18439be18a025140db14236123fd4c0

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

    Filesize

    482B

    MD5

    0b876251f29eefdc885caa535b3f827a

    SHA1

    4d250405aa720f59da2264740e4881f5d8a7f294

    SHA256

    6f2c6735256c22be4e60ef08465f975374ec47f46498070f0e2a8324c8b21b0c

    SHA512

    066e70188d3466a48f06dced7eff29024d6dfb06935f519974901f932ae22127eb28982ca256c393f8e9ab5bdcd32abd6cdad394da584597861eb532acadf481

  • C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build2.exe

    Filesize

    447KB

    MD5

    fb889bafcc6f226f1e7bfbaec1ae856a

    SHA1

    a04fd6e89eba5810017bf68c3a6842111ecdaf0e

    SHA256

    6e6061cd2d846e6be7058e35b0dab7f0513038a410a367be304e2e71c0bfb427

    SHA512

    39b4bacade7c740bf753f17a74afe71d05e27bbca64609a30495c778d16907e1c2766b2d822d63a8676d824b1090b3da704efa5615169e802a0af074590fb858

  • C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build2.exe

    Filesize

    447KB

    MD5

    fb889bafcc6f226f1e7bfbaec1ae856a

    SHA1

    a04fd6e89eba5810017bf68c3a6842111ecdaf0e

    SHA256

    6e6061cd2d846e6be7058e35b0dab7f0513038a410a367be304e2e71c0bfb427

    SHA512

    39b4bacade7c740bf753f17a74afe71d05e27bbca64609a30495c778d16907e1c2766b2d822d63a8676d824b1090b3da704efa5615169e802a0af074590fb858

  • C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build2.exe

    Filesize

    447KB

    MD5

    fb889bafcc6f226f1e7bfbaec1ae856a

    SHA1

    a04fd6e89eba5810017bf68c3a6842111ecdaf0e

    SHA256

    6e6061cd2d846e6be7058e35b0dab7f0513038a410a367be304e2e71c0bfb427

    SHA512

    39b4bacade7c740bf753f17a74afe71d05e27bbca64609a30495c778d16907e1c2766b2d822d63a8676d824b1090b3da704efa5615169e802a0af074590fb858

  • C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\19eaf5ab-be81-4dfa-a881-09eac5ba571f\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\91cf05b7-dbd7-417d-b479-a8aeabe92388\01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7.exe

    Filesize

    794KB

    MD5

    b822f2e780062f772c043f12f78a52ff

    SHA1

    f2c97efa67086b9312987b6d5d360f3588e72c20

    SHA256

    01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7

    SHA512

    771886eff4ccbc79654db9be4ba0abc176c853f47669617ff3609f31a4cefdcef40cc0aab7f9696fe7a313908b75c16172eeeed102339619af3af8bd9bf71ffb

  • 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

  • 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/1140-187-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1140-162-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1140-247-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1140-164-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1140-245-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1140-167-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1140-229-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1140-165-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1140-246-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/2744-166-0x0000000000930000-0x0000000000987000-memory.dmp

    Filesize

    348KB

  • memory/3644-121-0x0000000004230000-0x000000000434B000-memory.dmp

    Filesize

    1.1MB

  • memory/3652-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3652-118-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3652-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3652-119-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3652-120-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-184-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4204-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB