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Analysis

  • max time kernel
    145s
  • 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
    23/08/2023, 15:48

General

  • Target

    9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c.exe

  • Size

    754KB

  • MD5

    233f552822baa04d7e1b7f90b3814715

  • SHA1

    07ed426b27dba030441132031ac7b3cc47911271

  • SHA256

    9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c

  • SHA512

    502c1810bfcfc219ee53ecac1a78b6127231cd1e8897beb26529db25497f4c2636a77c9327cad84a71058a27617b7925bc2c63a193f8cf665febdddc6e29ab91

  • SSDEEP

    12288:I8PnzhpwwNT6yEDQlVJ2kRVJqlpzJW4DNkBajKOlOWxV1cq9nloNXrjlnDs:I0z75N1h/fJqD7oTKvlcyyrjlnD

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .jasa

  • offline_id

    umIwyPwiSJOJvBcdwrWXqzHWO4ar4za6seqWE2t1

  • 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-41jgkAwnmH 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: 0762JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.3

Botnet

562ce294a991b18054802a17b24ce0f9

C2

https://t.me/buukcay

https://steamcommunity.com/profiles/76561199544211655

Attributes
  • profile_id_v2

    562ce294a991b18054802a17b24ce0f9

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 3 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 1 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 10 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c.exe
    "C:\Users\Admin\AppData\Local\Temp\9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4880
    • C:\Users\Admin\AppData\Local\Temp\9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c.exe
      "C:\Users\Admin\AppData\Local\Temp\9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1116
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\47497f77-7b8d-4630-b735-14c3b48ff62a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4412
      • C:\Users\Admin\AppData\Local\Temp\9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c.exe
        "C:\Users\Admin\AppData\Local\Temp\9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4532
        • C:\Users\Admin\AppData\Local\Temp\9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c.exe
          "C:\Users\Admin\AppData\Local\Temp\9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1512
          • C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build2.exe
            "C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2744
            • C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build2.exe
              "C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1276
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:572
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4168
          • C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build3.exe
            "C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4116
            • 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:1860

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

    4849ded5f45cec7e511d14847c702399

    SHA1

    c91f233dd80fbdbf3eec4917a1289b6ce94cb3ee

    SHA256

    2481d98926336d63129e6b28c64fd1beee1e411c5dccb5919027f8a01fe5dd51

    SHA512

    5932d462f714fa61c80351bad47af51601985450627afa1fb938f9187168dd9ceee993716c0a3fa26b82ef244c9ca0794b7bf49dee238c738039c5c1f6c4acab

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

    Filesize

    1KB

    MD5

    1f94d4d280ff409d554abab350d17ef1

    SHA1

    6df310f84e1b99164310b7324996b71a3cb3fe24

    SHA256

    047a1f77bd04d3b566fe9f71e653e788ba99ecfa954cd169fde5b70517350a11

    SHA512

    25e67e76e011e6cb6bfd4654daef6a7c30d67db62006519549b209b3e0f6714437e08ce5ff2f26a8da54e9f0b37482ceb1ad0c2e15ee7cdb4d79347d7e0309fd

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

    Filesize

    488B

    MD5

    ed2eb898b4a77b973b693e882b03c266

    SHA1

    a8933eef0d618effc8b4e55e28f9b08102986d0b

    SHA256

    d42b8f7445b83bf55ea68b3d2a8d08ec549ede2520dba1fa1acb5207f3a4676b

    SHA512

    6a4d6da699769caf542a9a9393d3f86fb674e83597ae45fc25a1f83b92435ffb1edd1ad4a25417664a5b08b90006d58dd9b521cdfe4a799e5ae38605d26ac621

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

    Filesize

    482B

    MD5

    ba7e2dbf75fbff281fb89252637c246e

    SHA1

    6e3deb7d86bb08a158bb510ed53f2ce7e092c587

    SHA256

    addd4639e9de424ebfd565f23d6a3ca74b6396fc000d01602541a7dabd3b9a03

    SHA512

    3969864c8b9e5328729fa4947a3e67d91fe428f44fed1364bbd75009fa5a9be362575fddfd245047ac9823c95d0b8f092e325596278878a8125bca053d4b22e6

  • C:\Users\Admin\AppData\Local\47497f77-7b8d-4630-b735-14c3b48ff62a\9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c.exe

    Filesize

    754KB

    MD5

    233f552822baa04d7e1b7f90b3814715

    SHA1

    07ed426b27dba030441132031ac7b3cc47911271

    SHA256

    9a5e750fb41881f61bbc3dae5f6b54add4c145445198d60e88ab3e903544996c

    SHA512

    502c1810bfcfc219ee53ecac1a78b6127231cd1e8897beb26529db25497f4c2636a77c9327cad84a71058a27617b7925bc2c63a193f8cf665febdddc6e29ab91

  • C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build2.exe

    Filesize

    361KB

    MD5

    9545d2c1b9c67ae6c7536fa637f6e8dc

    SHA1

    b2654f52dfde5ae8791588d224fe707784a3c6fd

    SHA256

    44f9e81a2e056d24c0da23b8be38d37eceefe06e5bc6dbf67df2b18caf6223b8

    SHA512

    6eef0a2feec33e8bf1a6ede2fc62ee531299ce49759df07a463e8c5476617184d9b8e5a21fbb4b6641131a7130474f39800839c3d0127ba84b8f5a7b3fdffa4c

  • C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build2.exe

    Filesize

    361KB

    MD5

    9545d2c1b9c67ae6c7536fa637f6e8dc

    SHA1

    b2654f52dfde5ae8791588d224fe707784a3c6fd

    SHA256

    44f9e81a2e056d24c0da23b8be38d37eceefe06e5bc6dbf67df2b18caf6223b8

    SHA512

    6eef0a2feec33e8bf1a6ede2fc62ee531299ce49759df07a463e8c5476617184d9b8e5a21fbb4b6641131a7130474f39800839c3d0127ba84b8f5a7b3fdffa4c

  • C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build2.exe

    Filesize

    361KB

    MD5

    9545d2c1b9c67ae6c7536fa637f6e8dc

    SHA1

    b2654f52dfde5ae8791588d224fe707784a3c6fd

    SHA256

    44f9e81a2e056d24c0da23b8be38d37eceefe06e5bc6dbf67df2b18caf6223b8

    SHA512

    6eef0a2feec33e8bf1a6ede2fc62ee531299ce49759df07a463e8c5476617184d9b8e5a21fbb4b6641131a7130474f39800839c3d0127ba84b8f5a7b3fdffa4c

  • C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build2.exe

    Filesize

    361KB

    MD5

    9545d2c1b9c67ae6c7536fa637f6e8dc

    SHA1

    b2654f52dfde5ae8791588d224fe707784a3c6fd

    SHA256

    44f9e81a2e056d24c0da23b8be38d37eceefe06e5bc6dbf67df2b18caf6223b8

    SHA512

    6eef0a2feec33e8bf1a6ede2fc62ee531299ce49759df07a463e8c5476617184d9b8e5a21fbb4b6641131a7130474f39800839c3d0127ba84b8f5a7b3fdffa4c

  • C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c1aeb2fe-dfdc-4242-a29d-c3e66cec3022\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/1116-2-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1116-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1116-15-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1116-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1116-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1276-53-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/1276-120-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/1276-76-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1276-54-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/1276-119-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/1276-118-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/1276-51-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/1276-49-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/1512-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1512-25-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1512-26-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1512-46-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1512-45-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1512-20-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1512-19-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1512-63-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1512-18-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1512-43-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2744-48-0x0000000003440000-0x000000000349B000-memory.dmp

    Filesize

    364KB

  • memory/2744-52-0x0000000001A60000-0x0000000001A91000-memory.dmp

    Filesize

    196KB

  • memory/2744-47-0x0000000001A60000-0x0000000001A91000-memory.dmp

    Filesize

    196KB

  • memory/4880-1-0x0000000004310000-0x000000000442B000-memory.dmp

    Filesize

    1.1MB

  • memory/4880-4-0x0000000004220000-0x00000000042B1000-memory.dmp

    Filesize

    580KB

  • memory/4880-0-0x0000000004220000-0x00000000042B1000-memory.dmp

    Filesize

    580KB