General

  • Target

    1387974feffde780d5e3c69e33631a72

  • Size

    888KB

  • Sample

    231221-2c4epafec9

  • MD5

    1387974feffde780d5e3c69e33631a72

  • SHA1

    1d55315676b0db7ccf7822e89ab556987f88dc25

  • SHA256

    37780af54219c5c55bbd96da6b64a5bceeb10d99b01cecd7dc7dfb6406af2206

  • SHA512

    bd0fa09a5722d5d1c82525ce949dd37fd6e237e89cd8760e665d9aca7e50f4edf876538b46eac5056b92ee1d4751c2fa0fbc1e4eeb1e539bbe419905701ba837

  • SSDEEP

    12288:amhY9HGbus7YjeLIcSdThuQsx9I9UF8KRNQ9HalPYKi6NFttCM37/d3/IyH:amhGSSc5sus9Ux0HalLiuFFTGw

Malware Config

Targets

    • Target

      1387974feffde780d5e3c69e33631a72

    • Size

      888KB

    • MD5

      1387974feffde780d5e3c69e33631a72

    • SHA1

      1d55315676b0db7ccf7822e89ab556987f88dc25

    • SHA256

      37780af54219c5c55bbd96da6b64a5bceeb10d99b01cecd7dc7dfb6406af2206

    • SHA512

      bd0fa09a5722d5d1c82525ce949dd37fd6e237e89cd8760e665d9aca7e50f4edf876538b46eac5056b92ee1d4751c2fa0fbc1e4eeb1e539bbe419905701ba837

    • SSDEEP

      12288:amhY9HGbus7YjeLIcSdThuQsx9I9UF8KRNQ9HalPYKi6NFttCM37/d3/IyH:amhGSSc5sus9Ux0HalLiuFFTGw

    • ISR Stealer

      ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

    • ISR Stealer payload

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • Nirsoft

    • Blocklisted process makes network request

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • UPX packed file

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

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks