Analysis

  • max time kernel
    149s
  • max time network
    98s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    08/05/2026, 12:00

General

  • Target
    e8527f309846d18fbf85289283dcde7b19063a50b11263ba0d36663df8fcfd30.exe
  • Size 581KB
  • Sample260508-n6kmsagv21
  • SHA256 e8527f309846d18fbf85289283dcde7b19063a50b11263ba0d36663df8fcfd30
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: CryptJoker, PlutoCrypt

    CryptoJoker is an open source ransomware written in C#.

  • Detects CryptoJoker ransomware 1 IoCs
  • Renames multiple (3253) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 37 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8527f309846d18fbf85289283dcde7b19063a50b11263ba0d36663df8fcfd30.exe
    "C:\Users\Admin\AppData\Local\Temp\e8527f309846d18fbf85289283dcde7b19063a50b11263ba0d36663df8fcfd30.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:2596

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        USStmp.jtx

        • Path C:\Users\Admin\AppData\Local\Comms\UnistoreDB\USStmp.jtx
        • Size 3.0MB
        • SHA256 679f331dfae27db8b1b3d7644b455c8096fb67838633bd882de66ac042d8ded0
        • MD5 SHA1 SHA512 SSDEEP

        CURRENT

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extension State\CURRENT
        • Size 16B
        • SHA256 1bacff3cdbbd9cc2406e6a73327b622307bfd79e865fa8ab7214b2184ad85ccd
        • MD5 SHA1 SHA512

        MANIFEST-000001

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extension State\MANIFEST-000001
        • Size 41B
        • SHA256 3de105c0b34ebed46d6cf323a9b8bc1ab10292d20a2ecd3db7fc737d468f1e7c
        • MD5 SHA1 SHA512

        data_0

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_0
        • Size 8KB
        • SHA256 8c5bd90ca54284955375fa919b04ba5d91ce033b246c7bbb464c3cdbc284ab25
        • MD5 SHA1 SHA512 SSDEEP

        data_1

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1
        • Size 264KB
        • SHA256 f0e08624db9e1b3cf62c43d4266e7b201322599c9924ff55a7816b5e329dec2d
        • MD5 SHA1 SHA512 SSDEEP

        data_2

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_2
        • Size 8KB
        • SHA256 dc7b5439a27819ddffd0d0532062aa8e5eac283798653c8b00df206b76cd83f2
        • MD5 SHA1 SHA512 SSDEEP

        data_3

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_3
        • Size 8KB
        • SHA256 0adc4c6710c0e0dce4e6bf90d82ca8000ab8d56c6f02c42620285eac58959319
        • MD5 SHA1 SHA512 SSDEEP

        index

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\index
        • Size 256KB
        • SHA256 0823ddc709f70c54be3907541db473284ce2aeaffcb0249ca439949ebd31ed90
        • MD5 SHA1 SHA512 SSDEEP

        index

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index
        • Size 24B
        • SHA256 1115050e7e14ffec6c5815bf9d28752b3d28b5c7ad335e58aa770e8d0e1d8eb7
        • MD5 SHA1 SHA512

        messages.json

        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Extensions\ghbmnnjooekpmoecnnnilnnbdlolhkhi\1.100.1_0\_locales\en\messages.json
        • Size 851B
        • SHA256 c61981e8bf2ff10199530304aee0b74a9b6cc88c6a475b578cf6e9d658107e5a
        • MD5 SHA1 SHA512 TLSH

        000003.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Local Storage\leveldb\000003.log
        • Size 114B
        • SHA256 026d1f65529e1b2aafcabcd512ab871c3f2a44748ed34a19c673f8a71253d68e
        • MD5 SHA1 SHA512

        SCT Auditing Pending Reports

        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
        • Size 2B
        • SHA256 094863dd45b51c16a33a3cc843490e46f06ae45cabf06cd2a3566f3d53ac2326
        • MD5 SHA1 SHA512

        db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Shared Dictionary\db
        • Size 44KB
        • SHA256 08190363c82ffcea170b2169dfd088d7796b0234c7e431bb8b1b9a611ff23082
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SharedStorage

        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\SharedStorage
        • Size 4KB
        • SHA256 9d70eb99ba013602bd680c674fd7d2d46ba2ae289cf19cadcd6aeaf44050e8ba
        • MD5 SHA1 SHA512 TLSH

        edge_driver.js

        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Edge Shopping\2.1.94.0\edge_driver.js
        • Size 1.0MB
        • SHA256 dc3a746048c7c055ee0bbc74b21bf936b993b2006458425f2e8ea115f824e32e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        winword.exe_Rules.xml

        • Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\winword.exe_Rules.xml
        • Size 325KB
        • SHA256 71289d02f94389e0f092a12abffd88ec64c8d5f9d2d12d951dc9561df8d04d31
        • MD5 SHA1 SHA512 SSDEEP TLSH

        winword.exe.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Office\OTele\winword.exe.db
        • Size 24KB
        • SHA256 b0c1df31d130317a70a11974979e6d3523bebc6f54dfe6aa67fe0eb17df560a7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        desktop.ini

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn2\desktop.ini
        • Size 174B
        • SHA256 9dcf2ec9747e5645869975db34fdddcd5e030dd5d70c9ec6ccdcdc6d825837fe
        • MD5 SHA1 SHA512 TLSH

        settings.dat

        • Path C:\Users\Admin\AppData\Local\Packages\E2A4F912-2574-4A75-9BB0-0D023378592B_cw5n1h2txyewy\Settings\settings.dat
        • Size 8KB
        • SHA256 40dcd1122af3e7b55819dd02a8e11e00c85c470586da7e2329252c48acda925d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        F4EB2D6C-ED2B-4BDD-AD9D-F913287E6768.lock

        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\AC\F4EB2D6C-ED2B-4BDD-AD9D-F913287E6768.lock
        • Size 4B
        • SHA256 7ce4329b40a4c2b219edb53223affda78de66eefff9190c36b70e8e044215b12
        • MD5 SHA1 SHA512

        22TL6JMO3P_1

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AppData\CacheStorage\Files4\S3QGLYIP_1\54SJHJS9_2\22TL6JMO3P_1
        • Size 19KB
        • SHA256 67a590c197b7790ac59209ca2d416ff87c4789da8b129900ac179e2bf4c80632
        • MD5 SHA1 SHA512 SSDEEP TLSH

        0.1.filtertrie.intermediate.txt

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\LocalState\ConstraintIndex\Settings_{cbd2a161-a192-44ff-9a4a-7ca6a77b4c20}\0.1.filtertrie.intermediate.txt
        • Size 5B
        • SHA256 683e00c76e27ec60ee567d42a6aeeb9743b836a67bf6aa7fdb111a0e1a1fa9a8
        • MD5 SHA1 SHA512

        0.2.filtertrie.intermediate.txt

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\LocalState\ConstraintIndex\Settings_{cbd2a161-a192-44ff-9a4a-7ca6a77b4c20}\0.2.filtertrie.intermediate.txt
        • Size 5B
        • SHA256 7d90d3575baf5779d9df791b50defaa4df59489f449a7ba0e783cef0ec9629d7
        • MD5 SHA1 SHA512

        wct7FA1.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\wct7FA1.tmp
        • Size 63KB
        • SHA256 1a78fbe998fdea696bee2bfca93bf7e3a36e080a12bdf2a4509e7d8854af9dfe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        favicons.sqlite-shm

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9zyrz34.default-release\favicons.sqlite-shm
        • Size 32KB
        • SHA256 1c95bf2ce26441cc1f0ff141cc06ec56db9d66747ddeed607fabec117548546e
        • MD5 SHA1 SHA512 SSDEEP

        2823318777ntouromlalnodry--naod.sqlite

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\x9zyrz34.default-release\storage\permanent\chrome\idb\2823318777ntouromlalnodry--naod.sqlite
        • Size 48KB
        • SHA256 14078d868ac8dcc0f84193672a879b43eccde1ea92df11e42e4c2c7405beea1b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2596-0-0x000001F0400B0000-0x000001F040148000-memory.dmp

        memory/2596-6006-0x000001F041FCE000-0x000001F041FCF000-memory.dmp

        memory/2596-6008-0x000001F05A820000-0x000001F05A830000-memory.dmp

        memory/2596-6009-0x000001F05A540000-0x000001F05A62A000-memory.dmp

        memory/2596-6010-0x000001F05A820000-0x000001F05A830000-memory.dmp

        memory/2596-6013-0x000001F05A540000-0x000001F05A62A000-memory.dmp