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
    20/04/2026, 11:10

General

  • Target
    2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
  • Size 1.4MB
  • Sample260420-m9pkgagv5k
  • SHA256 7b6b63339dd9744cf5e3c0c024e3133863ab08ee87438d3f579bf56622079905
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • UPX dump on OEP (original entry point) 7 IoCs
  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 4 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops file in System32 directory 17 IoCs
  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"
    1⤵
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3128
  • C:\Windows\Syswow64\ce2f1bf6
    C:\Windows\Syswow64\ce2f1bf6
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3388

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        ce2f1bf6

        • Path C:\Windows\SysWOW64\ce2f1bf6
        • Size 1.4MB
        • SHA256 7e8d3cd934b92bf593fc309d57772c441710850ad7f032d0e40c3f742d3b71d5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3128-0-0x0000000000A60000-0x0000000000AE9000-memory.dmp

        memory/3128-10-0x0000000000A60000-0x0000000000AE9000-memory.dmp

        memory/3128-12-0x0000000000BF0000-0x0000000000CCF000-memory.dmp

        memory/3128-30-0x0000000000A60000-0x0000000000AE9000-memory.dmp

        memory/3388-3-0x00000000000A0000-0x0000000000129000-memory.dmp

        memory/3388-14-0x00000000019C0000-0x0000000001A9F000-memory.dmp

        memory/3388-15-0x00000000000A0000-0x0000000000129000-memory.dmp

        memory/3388-32-0x00000000000A0000-0x0000000000129000-memory.dmp