Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    27/04/2026, 13:59

General

  • Target
    2026-04-27_ca5d1be9515681c660fbe3d54622b3ff_cobalt-strike_coinminer_hijackloader_icedid_njrat_rhadam.exe
  • Size 6.0MB
  • Sample260427-raryrsc14w
  • SHA256 aa1d50d4a4569daa5f90e3a086b8c16640a2db0c492e4a40c018f4496fff06f2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detects executables embedding registry key / value combination indicative of disabling Windows Defen 1 IoCs
  • UPX dump on OEP (original entry point) 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops file in Windows directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-27_ca5d1be9515681c660fbe3d54622b3ff_cobalt-strike_coinminer_hijackloader_icedid_njrat_rhadam.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-27_ca5d1be9515681c660fbe3d54622b3ff_cobalt-strike_coinminer_hijackloader_icedid_njrat_rhadam.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:712
    • C:\Windows\System32\notepad.exe
      "C:\Windows\System32\notepad.exe" C:\Users\Admin\AppData\Local\Temp\WEL5ADD.tmp
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:1300

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        vcredist_x86.exe

        • Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
        • Size 6.4MB
        • SHA256 e455ff47150ed0767d59cfdb367d5f8962f661aa07d10b1a732b8df1b2d13a49
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WEL5ADD.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\WEL5ADD.tmp
        • Size 52B
        • SHA256 be0909be27235c36586ceb9b7e37d8d74c423d9460c4dbf0e2417fcf58b96caa
        • MD5 SHA1 SHA512 TLSH

        memory/712-41-0x000001A9D0E70000-0x000001A9D100A000-memory.dmp

        memory/1300-42-0x00000286D0900000-0x00000286D0A9A000-memory.dmp