Analysis

  • max time kernel
    145s
  • max time network
    129s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    16/08/2023, 15:37

General

  • Target

    4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389.exe

  • Size

    730KB

  • MD5

    8398b7772e6a34449d5f0db81fc2a893

  • SHA1

    410e2f204b9e77e7617a89d51b80778798c352c1

  • SHA256

    4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389

  • SHA512

    5c2552ee3d1a68cfda859a92c3e6f9c400dec8c991d3e40a851b967155a063a90a6607cd23a396fc5c71fad621e995c1cafa7837d9d73433fd00842c200c6faa

  • SSDEEP

    12288:+2isxeQQUvD0QqLIb9I9cihf7YkC3aXPCVp/EIguwluzmWgA9:+4xeOr0QLZIW60Lq/ixguGuzmWgA9

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .taoy

  • offline_id

    cshgakAnUmp40qfk3nvyiyRRVOf96kqTUfJ1MNt1

  • 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-hmnZYNZHN5 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: 0761JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.2

Botnet

35aa2808fb90f9e9dac907e1be77f310

C2

https://t.me/odyssey_tg

https://steamcommunity.com/profiles/76561199541261200

Attributes
  • profile_id_v2

    35aa2808fb90f9e9dac907e1be77f310

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.30 (KHTML, like Gecko) Chrome/115.0.1.0 Safari/537.30

Signatures

  • Detected Djvu ransomware 18 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).

  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389.exe
    "C:\Users\Admin\AppData\Local\Temp\4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2708
    • C:\Users\Admin\AppData\Local\Temp\4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389.exe
      "C:\Users\Admin\AppData\Local\Temp\4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3784
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\28cc450a-f898-4a98-98bd-b84b0f85a5ab" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4196
      • C:\Users\Admin\AppData\Local\Temp\4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389.exe
        "C:\Users\Admin\AppData\Local\Temp\4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2624
        • C:\Users\Admin\AppData\Local\Temp\4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389.exe
          "C:\Users\Admin\AppData\Local\Temp\4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:700
          • C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build2.exe
            "C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:340
            • C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build2.exe
              "C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4452
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4204
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:5012
          • C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build3.exe
            "C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:404
            • 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:4488
  • 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:3744
    • 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:4160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    38fe20464f4566665a3e93bc25958d45

    SHA1

    f1da804263c20548ab1520bb7f728cba31aa1af9

    SHA256

    aa075f76b582d3c8d6aecc2a2b643a6434a818e44b20933625a2c30d21d78d7a

    SHA512

    c1ed7d73f7864e274259580c432f6efcd5b08251fa7e131d731b8421cfcb440d6436a57bac81fa74db9f12eb3aef8853bdf5454773dc33d89354ba1e9ba2679e

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

    Filesize

    1KB

    MD5

    979482ca9ef939d4a62f58866cbfeda6

    SHA1

    b0fcfbc8c9bf35a6c68d777e08a78b482127d34c

    SHA256

    30581896718a00f5ca49085d01bbb9d715d99231c20c46ee88e3539e7a117c35

    SHA512

    7baf0e98e8b8245d959cb6d232e366533d5a37bcd57fea13f979d422c019ad458a5b5a7d3b3bbed919750e128792444f692b1d583a8b9a96a83922bea4aa983b

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

    Filesize

    488B

    MD5

    94bb92def04a74a211056afc1f770dbe

    SHA1

    9acc23e685fa5d53f8b37ee31333e1c21e620370

    SHA256

    17b8557fbb2f000f7afb43a37ec450d6952d2f2cc09dae11bd1dfabf4ac4bf26

    SHA512

    0de2fff4ed46e54709be9ecfcc901d07dc14f6d52e53e67c4182d4f4248f03d645bdf10c6e30413be0b962b7210601d6509f9a1e4b8fb98fef47da4c56ed5678

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

    Filesize

    482B

    MD5

    0b0c9c8ab335dce5b0f73c9a5a4e1df7

    SHA1

    c85cfbe25f0f32da6e2f2ed8e340b63bbe80a83e

    SHA256

    071b45631167d008c1b05c3ce83a49992c9ec4bccc3b50bbda242565ccd1c878

    SHA512

    d9f119aadad8db5df3d10a69c3b6754688f308054d0578f8edec4a6698ea7196882d62df9894d8611d126869aa14b500dd5d5d50d3640896342593b1f66393d4

  • C:\Users\Admin\AppData\Local\28cc450a-f898-4a98-98bd-b84b0f85a5ab\4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389.exe

    Filesize

    730KB

    MD5

    8398b7772e6a34449d5f0db81fc2a893

    SHA1

    410e2f204b9e77e7617a89d51b80778798c352c1

    SHA256

    4259d2d25d746cff7d911d5d630541155a441dbbce3029652cdeefc4c62af389

    SHA512

    5c2552ee3d1a68cfda859a92c3e6f9c400dec8c991d3e40a851b967155a063a90a6607cd23a396fc5c71fad621e995c1cafa7837d9d73433fd00842c200c6faa

  • C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build2.exe

    Filesize

    375KB

    MD5

    6076ec9fc98856b3b627751f92843a35

    SHA1

    5520b12ee2f8d39d6c8def16c7d472d08d43ec65

    SHA256

    a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

    SHA512

    36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

  • C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build2.exe

    Filesize

    375KB

    MD5

    6076ec9fc98856b3b627751f92843a35

    SHA1

    5520b12ee2f8d39d6c8def16c7d472d08d43ec65

    SHA256

    a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

    SHA512

    36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

  • C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build2.exe

    Filesize

    375KB

    MD5

    6076ec9fc98856b3b627751f92843a35

    SHA1

    5520b12ee2f8d39d6c8def16c7d472d08d43ec65

    SHA256

    a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

    SHA512

    36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

  • C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\30533b50-e5f4-426c-9705-b89e0ab67caf\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

  • 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/340-158-0x00000000024F0000-0x00000000025F0000-memory.dmp

    Filesize

    1024KB

  • memory/340-159-0x0000000002450000-0x00000000024AB000-memory.dmp

    Filesize

    364KB

  • memory/700-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/700-190-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/700-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/700-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/700-187-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/700-141-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/700-189-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/700-224-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/700-223-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/700-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/700-176-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2624-139-0x00000000034E0000-0x0000000003572000-memory.dmp

    Filesize

    584KB

  • memory/2708-120-0x00000000035B0000-0x0000000003642000-memory.dmp

    Filesize

    584KB

  • memory/2708-124-0x00000000035B0000-0x0000000003642000-memory.dmp

    Filesize

    584KB

  • memory/2708-121-0x0000000003650000-0x000000000376B000-memory.dmp

    Filesize

    1.1MB

  • memory/3784-126-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3784-125-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3784-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3784-123-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3784-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4452-191-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4452-164-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4452-163-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4452-162-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4452-230-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4452-232-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4452-233-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4452-160-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB