Analysis

  • max time kernel
    297s
  • max time network
    258s
  • 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 04:48

General

  • Target

    d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8.exe

  • Size

    739KB

  • MD5

    9a744eb4c1c951e9df142b5c4da9f8f0

  • SHA1

    f12a7054340ac3797d2beffdaa386f9b30967ea4

  • SHA256

    d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8

  • SHA512

    a25ce3c2e60dc6a6a244d31e47e87422a55f8e2d035cc24c603948e59a816dc8997dc2b3c26e58145dd4cfabbb5c2efe1efe00d5deeb43558e3337d0efef6ac5

  • SSDEEP

    12288:7od48w8WzkRTfxEW7CXJfZBvYNPOd5l7rNYNL2F7ILhTQt5cf6+hsuHskc:738w83JEECNZBvYNYD7rNQ2F7sSmphni

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 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).

  • 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\d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8.exe
    "C:\Users\Admin\AppData\Local\Temp\d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4588
    • C:\Users\Admin\AppData\Local\Temp\d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8.exe
      "C:\Users\Admin\AppData\Local\Temp\d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:916
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\af42e50c-f10e-41ef-9fae-c977cbee0524" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1424
      • C:\Users\Admin\AppData\Local\Temp\d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8.exe
        "C:\Users\Admin\AppData\Local\Temp\d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:192
        • C:\Users\Admin\AppData\Local\Temp\d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8.exe
          "C:\Users\Admin\AppData\Local\Temp\d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4672
          • C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build2.exe
            "C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4176
            • C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build2.exe
              "C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:5016
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4692
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4312
          • C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build3.exe
            "C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:5008
            • 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:4372
  • 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:3872
    • 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:1872

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

    00cbfb6774427d92c117c44b3bd17706

    SHA1

    413bfed4cfe6207a8aab1cb5f5df744e62e2f274

    SHA256

    8ffef473aa8d6097ddcd088392f5d23f438fcbda22d1af02973ed505d862fd87

    SHA512

    2c401dcbfae8d04f62237d0bcdf1a6e901c67f6458682225fe00db096929fd035e64b67f07fd37ec2c13156ec69624528ed5889565417afabe5e886b75f08a47

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

    Filesize

    482B

    MD5

    762c603bb5fbf2395fab58e47277af32

    SHA1

    ad7c7c2e3bbd0e74685e5f6a32f155e27fb2a69c

    SHA256

    a5f6e75a94ad079050165ad4cd66ff59055b78f7c576e4e614131d7c1165a7e8

    SHA512

    56e6b254242d8937eee29357dc3c81943cf2a13347a535adeaa05aac9c297c145a095f16aec0908d657b1a35f18fb35b89b5b3b3dc0e866f85aa5f69e2c937b8

  • C:\Users\Admin\AppData\Local\af42e50c-f10e-41ef-9fae-c977cbee0524\d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8.exe

    Filesize

    739KB

    MD5

    9a744eb4c1c951e9df142b5c4da9f8f0

    SHA1

    f12a7054340ac3797d2beffdaa386f9b30967ea4

    SHA256

    d5dc372680bc7636be48e3a8a38672b0434c91807f22e2989fe352507f0d45f8

    SHA512

    a25ce3c2e60dc6a6a244d31e47e87422a55f8e2d035cc24c603948e59a816dc8997dc2b3c26e58145dd4cfabbb5c2efe1efe00d5deeb43558e3337d0efef6ac5

  • C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build2.exe

    Filesize

    375KB

    MD5

    6076ec9fc98856b3b627751f92843a35

    SHA1

    5520b12ee2f8d39d6c8def16c7d472d08d43ec65

    SHA256

    a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

    SHA512

    36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

  • C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build2.exe

    Filesize

    375KB

    MD5

    6076ec9fc98856b3b627751f92843a35

    SHA1

    5520b12ee2f8d39d6c8def16c7d472d08d43ec65

    SHA256

    a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

    SHA512

    36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

  • C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build2.exe

    Filesize

    375KB

    MD5

    6076ec9fc98856b3b627751f92843a35

    SHA1

    5520b12ee2f8d39d6c8def16c7d472d08d43ec65

    SHA256

    a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

    SHA512

    36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

  • C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\cfb09233-0279-47e8-a25e-ede9eb2a1ce8\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/192-141-0x0000000001A80000-0x0000000001B12000-memory.dmp

    Filesize

    584KB

  • memory/916-128-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/916-139-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/916-125-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/916-124-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/916-127-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4176-169-0x0000000003F00000-0x0000000003F5B000-memory.dmp

    Filesize

    364KB

  • memory/4176-168-0x0000000002560000-0x0000000002660000-memory.dmp

    Filesize

    1024KB

  • memory/4588-123-0x00000000036E0000-0x00000000037FB000-memory.dmp

    Filesize

    1.1MB

  • memory/4588-122-0x00000000035A0000-0x0000000003632000-memory.dmp

    Filesize

    584KB

  • memory/4588-126-0x00000000035A0000-0x0000000003632000-memory.dmp

    Filesize

    584KB

  • memory/4672-155-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4672-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4672-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4672-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4672-150-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4672-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4672-180-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4672-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4672-157-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4672-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5016-194-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/5016-174-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5016-173-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5016-170-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5016-172-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5016-233-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5016-234-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5016-236-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB