Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    05/05/2026, 03:25

General

  • Target
    2026-05-05_01a47d02f6e0e5f1fc670f0bdb0f37b5_amadey_coinminer_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 560KB
  • Sample260505-dynpcsfx5v
  • SHA256 243cc03f15a715306afe8160d2d687cfb3cf0e20145c7cd6f47d86e754e11a55
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 6 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 5 IoCs
  • UPX packed file 6 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 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-05_01a47d02f6e0e5f1fc670f0bdb0f37b5_amadey_coinminer_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-05_01a47d02f6e0e5f1fc670f0bdb0f37b5_amadey_coinminer_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5240
  • C:\Windows\Syswow64\b2100cac
    C:\Windows\Syswow64\b2100cac
    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:3448

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        b2100cac

        • Path C:\Windows\SysWOW64\b2100cac
        • Size 560KB
        • SHA256 73e5d7edc114d5347b06834ad6d9129ea7280289c926f713ee298551863b86d6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3448-3-0x0000000000890000-0x000000000091C000-memory.dmp

        memory/3448-11-0x0000000000890000-0x000000000091C000-memory.dmp

        memory/3448-24-0x0000000000890000-0x000000000091C000-memory.dmp

        memory/5240-0-0x00000000004E0000-0x000000000056C000-memory.dmp

        memory/5240-10-0x00000000004E0000-0x000000000056C000-memory.dmp