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Analysis

  • max time kernel
    152s
  • max time network
    209s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    04/12/2022, 05:38

General

  • Target

    b5c2cf63d1640bc174756d840353c3f37b2aa28ff8f9d88777316284335894fb.exe

  • Size

    556KB

  • MD5

    aaad74f9178b2dd2b60339dc1f4b8c3a

  • SHA1

    8be42dae4ce9b7767e6dedbeec1542b12684d9cd

  • SHA256

    b5c2cf63d1640bc174756d840353c3f37b2aa28ff8f9d88777316284335894fb

  • SHA512

    f0a81a1516324b19747060f3d6629f7a57e62f0c51df9c783acf0dd6a65090f81b7319323442548f06643d51e2dfcbdcb26114e1c7ad8e0bd454935218267e37

  • SSDEEP

    12288:9GosTxSzpDq5VNYdyOshT5l4/86CaIhvPfNMIM1P27QwMMT6:9GosTxSEXzOV/UaIBNLMp20wMMT6

Score
8/10

Malware Config

Signatures

  • UPX packed file 4 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\b5c2cf63d1640bc174756d840353c3f37b2aa28ff8f9d88777316284335894fb.exe
    "C:\Users\Admin\AppData\Local\Temp\b5c2cf63d1640bc174756d840353c3f37b2aa28ff8f9d88777316284335894fb.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    PID:1000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\ICReinstall_b5c2cf63d1640bc174756d840353c3f37b2aa28ff8f9d88777316284335894fb.exe

    Filesize

    556KB

    MD5

    aaad74f9178b2dd2b60339dc1f4b8c3a

    SHA1

    8be42dae4ce9b7767e6dedbeec1542b12684d9cd

    SHA256

    b5c2cf63d1640bc174756d840353c3f37b2aa28ff8f9d88777316284335894fb

    SHA512

    f0a81a1516324b19747060f3d6629f7a57e62f0c51df9c783acf0dd6a65090f81b7319323442548f06643d51e2dfcbdcb26114e1c7ad8e0bd454935218267e37

  • memory/1000-54-0x0000000000400000-0x0000000000522000-memory.dmp

    Filesize

    1.1MB

  • memory/1000-56-0x0000000075F01000-0x0000000075F03000-memory.dmp

    Filesize

    8KB

  • memory/1000-57-0x0000000000400000-0x0000000000522000-memory.dmp

    Filesize

    1.1MB

  • memory/1000-58-0x0000000000400000-0x0000000000522000-memory.dmp

    Filesize

    1.1MB

  • memory/1000-61-0x0000000003C70000-0x0000000003C80000-memory.dmp

    Filesize

    64KB

  • memory/1000-62-0x0000000003C70000-0x0000000003C80000-memory.dmp

    Filesize

    64KB