Analysis

  • max time kernel
    270s
  • max time network
    355s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 07:58

General

  • Target

    b8434ed632e3da0080e6bb508e326f76499950bd2dc450997bf0c9bc02dd7fba.exe

  • Size

    556KB

  • MD5

    3e2a3eb21b43c089b83d5f2b4659d402

  • SHA1

    b28d5629522485b65de7677d6907f284b9a705e2

  • SHA256

    b8434ed632e3da0080e6bb508e326f76499950bd2dc450997bf0c9bc02dd7fba

  • SHA512

    31b889d034f8956649de15b6199c387cef20f7a24e7af3d2e59859e920bd39b06c5b744987a7b9244e30d7a4448e5108356d77199788e120e03683fb7a797153

  • SSDEEP

    12288:7GosTxSzpDq5VNYdyOshT5l4/86CaIhvPfNMIM1P27QwMMT6:7GosTxSEXzOV/UaIBNLMp20wMMT6

Score
8/10

Malware Config

Signatures

  • UPX packed file 5 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b8434ed632e3da0080e6bb508e326f76499950bd2dc450997bf0c9bc02dd7fba.exe
    "C:\Users\Admin\AppData\Local\Temp\b8434ed632e3da0080e6bb508e326f76499950bd2dc450997bf0c9bc02dd7fba.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    PID:360

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\ICReinstall_b8434ed632e3da0080e6bb508e326f76499950bd2dc450997bf0c9bc02dd7fba.exe

    Filesize

    556KB

    MD5

    3e2a3eb21b43c089b83d5f2b4659d402

    SHA1

    b28d5629522485b65de7677d6907f284b9a705e2

    SHA256

    b8434ed632e3da0080e6bb508e326f76499950bd2dc450997bf0c9bc02dd7fba

    SHA512

    31b889d034f8956649de15b6199c387cef20f7a24e7af3d2e59859e920bd39b06c5b744987a7b9244e30d7a4448e5108356d77199788e120e03683fb7a797153

  • memory/360-54-0x0000000000400000-0x0000000000522000-memory.dmp

    Filesize

    1.1MB

  • memory/360-55-0x0000000000400000-0x0000000000522000-memory.dmp

    Filesize

    1.1MB

  • memory/360-56-0x0000000075C11000-0x0000000075C13000-memory.dmp

    Filesize

    8KB

  • memory/360-57-0x0000000000400000-0x0000000000522000-memory.dmp

    Filesize

    1.1MB

  • memory/360-58-0x0000000000400000-0x0000000000522000-memory.dmp

    Filesize

    1.1MB

  • memory/360-62-0x0000000003610000-0x0000000003620000-memory.dmp

    Filesize

    64KB