Resubmissions

15/06/2026, 16:13

260615-tph1hsfv3q10

31/03/2026, 07:05

260331-hwkbdaay6y10

Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    31/03/2026, 07:05

General

  • Target
    e8527f309846d18fbf85289283dcde7b19063a50b11263ba0d36663df8fcfd30.exe
  • Size 581KB
  • Sample260331-hwkbdaay6y
  • SHA256 e8527f309846d18fbf85289283dcde7b19063a50b11263ba0d36663df8fcfd30
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • CryptJoker, PlutoCrypt

    CryptoJoker is an open source ransomware written in C#.

  • Cryptjoker family
  • Renames multiple (3094) 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:2612

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 063988b89a29869525a2658afec45841f571b21591b9a5a3234c52bc53e16db7
        • MD5 SHA1 SHA512 SSDEEP

        CURRENT

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extension State\CURRENT
        • Size 16B
        • SHA256 8c408fed9abcaab7707f5eb4d476538791d8705628d7a110190e068d3706b49f
        • MD5 SHA1 SHA512

        MANIFEST-000001

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extension State\MANIFEST-000001
        • Size 41B
        • SHA256 ca1772b68ea6ff1a216f889eb0da9f2358034d739673f0199300f9f44de32952
        • MD5 SHA1 SHA512

        data_0

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_0
        • Size 8KB
        • SHA256 22751874610f35bfa674cb6d818c9c2e14c0dd97cb928c214cf4a7af419fb8f6
        • MD5 SHA1 SHA512 SSDEEP

        data_1

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1
        • Size 264KB
        • SHA256 4cd150863cd54a246f7bc3f7ceec8b030622a41353ef0e8ae367d6ddab305dfb
        • MD5 SHA1 SHA512 SSDEEP

        data_2

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_2
        • Size 8KB
        • SHA256 b750ba13b54b74953c0025f2ba1656832ad11cde3dce88c998a38fa6674dc1d4
        • MD5 SHA1 SHA512 SSDEEP

        data_3

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_3
        • Size 8KB
        • SHA256 16ed5c2a0920896a93b04ded6862101d22462361ad3cdf44c13cd27631d05857
        • MD5 SHA1 SHA512 SSDEEP

        index

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\index
        • Size 256KB
        • SHA256 e80101554974b80f3cb79fa07cbaa91acb2752d6657d2ab3de518a2b86e1105e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        index

        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index
        • Size 24B
        • SHA256 44d440c822c16d6d1550e95734d16cd17b488c08c9f7b6150d347f9fef973f01
        • 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 f94eb072095932001975b0ae1109caa67d73eb79d89d94ea7bcc41b955e02aed
        • MD5 SHA1 SHA512 TLSH

        index

        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\GPUCache\index
        • Size 256KB
        • SHA256 3e34f0ec3dd9352f9e4bc058258435677ab8d19e9c8702071aad951d03226040
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SCT Auditing Pending Reports

        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
        • Size 2B
        • SHA256 1c0c0f984c2dd6556efef6179de8a562a9ebbc02d6761ff661f8fedd260f748f
        • MD5 SHA1 SHA512

        db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Shared Dictionary\db
        • Size 44KB
        • SHA256 a3c4b9269a78f2ed03978e92d5b4093f8c3e50e9772fc98e531254ef75d346b8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SharedStorage

        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\SharedStorage
        • Size 4KB
        • SHA256 dfaa67fc2ada9e43da290fd6accbd4cf09ca9835a907cc4d385de7af284a0f63
        • MD5 SHA1 SHA512 TLSH

        winword.exe_Rules.xml

        • Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\winword.exe_Rules.xml
        • Size 325KB
        • SHA256 84ef6a7a0925ca1a187dec259663723e907918bdb926d5a5a5c5681e1a379045
        • MD5 SHA1 SHA512 SSDEEP TLSH

        winword.exe.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Office\OTele\winword.exe.db
        • Size 24KB
        • SHA256 e78797f9c8c2962e91dc09ee9fceef94245f0b0ce03bfa6736f87122c1b3ea61
        • MD5 SHA1 SHA512 SSDEEP TLSH

        desktop.ini

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn2\desktop.ini
        • Size 174B
        • SHA256 8dad3a759415660f6fc6a954889813491684ce3776f2c168709f4dd12c7e2361
        • 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 2d6a62abfa2d95e486b872cfa3af23dcff8dbaeacaf5141964eaeda317b06279
        • MD5 SHA1 SHA512 SSDEEP TLSH

        BR6S0EQTRV_33

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AppData\CacheStorage\Files4\TVZSQPI5_1\JTWS04XI_2\BR6S0EQTRV_33
        • Size 19KB
        • SHA256 7910fa1f7a57fdc0d15ae7e499973c6f7f97704afead7cc719029b364ac768de
        • MD5 SHA1 SHA512 SSDEEP TLSH

        0.1.filtertrie.intermediate.txt

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\LocalState\ConstraintIndex\Settings_{6b9c46b0-9615-41cb-8d37-3585849b203f}\0.1.filtertrie.intermediate.txt
        • Size 5B
        • SHA256 ae5fb638a41b6ec4331d8368fbbf9be1450cd0957fad582d778ccdbb72ed7925
        • MD5 SHA1 SHA512

        0.2.filtertrie.intermediate.txt

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\LocalState\ConstraintIndex\Settings_{6b9c46b0-9615-41cb-8d37-3585849b203f}\0.2.filtertrie.intermediate.txt
        • Size 5B
        • SHA256 f8e56049339135efce747010ecae8fd1be5c855eeb5bd61e40f0a3c6e05f99ab
        • MD5 SHA1 SHA512

        wct9059.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\wct9059.tmp
        • Size 63KB
        • SHA256 8bbe31392a8981820e44bf25191f3dcf44e61cbe4f7ea22922256e563953aef6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TM02851227[[fn=sist02]].xsl

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Templates\LiveContent\16\Managed\Word Document Bibliography Styles\TM02851227[[fn=sist02]].xsl
        • Size 245KB
        • SHA256 130eaa270fcd8fc9848fa6e023c944790d017e0f50cdb5025ebbb59206974c42
        • MD5 SHA1 SHA512 SSDEEP TLSH

        favicons.sqlite-shm

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\8bpv94fp.default-release\favicons.sqlite-shm
        • Size 32KB
        • SHA256 211c35cc0cc4d1c494e6d5cdf0c136914b14e591b0cb80f142e1702536ebecc1
        • MD5 SHA1 SHA512 SSDEEP

        2823318777ntouromlalnodry--naod.sqlite

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\8bpv94fp.default-release\storage\permanent\chrome\idb\2823318777ntouromlalnodry--naod.sqlite
        • Size 48KB
        • SHA256 750c53fe4bca762a6cd46e8db31b53b88c70856900528ae38b2fac16e786362c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2612-0-0x000002269FF40000-0x000002269FFD8000-memory.dmp

        memory/2612-5598-0x00000226A202A000-0x00000226A202B000-memory.dmp

        memory/2612-5599-0x00000226BA660000-0x00000226BA670000-memory.dmp

        memory/2612-5601-0x00000226A0400000-0x00000226A040C000-memory.dmp

        memory/2612-5602-0x00000226BA660000-0x00000226BA670000-memory.dmp

        memory/2612-5605-0x00000226A0400000-0x00000226A040C000-memory.dmp