Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2022 17:38

General

  • Target

    affa0c1b9940710a55744e185bdcebb95b2b0a79a96b02b4f0c5c93111211488.exe

  • Size

    587KB

  • MD5

    323954ae37bbe441003cdd2017f1377a

  • SHA1

    647ffa9d0fef9b342f97484d7fb961d7cbf89bd0

  • SHA256

    affa0c1b9940710a55744e185bdcebb95b2b0a79a96b02b4f0c5c93111211488

  • SHA512

    b702f0249eecb6f4724271596062ac4b162aad1b903ff093d297adbeb8c42145254fae0ff5f656608c145a91ba10bc63ba8b9e2ef8dfdc28a9f9bb02d3bb1eb7

  • SSDEEP

    12288:zVOaPBGynb3sJjxmzJfPgjHcNAtGfMn6Iyy4Yni2FsdD4xg51aise8G2:hOaJnb3s30VPUH0AgYLymTlu51aDen2

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
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\affa0c1b9940710a55744e185bdcebb95b2b0a79a96b02b4f0c5c93111211488.exe
    "C:\Users\Admin\AppData\Local\Temp\affa0c1b9940710a55744e185bdcebb95b2b0a79a96b02b4f0c5c93111211488.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Suspicious use of SetWindowsHookEx
    PID:1788

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\ICReinstall_affa0c1b9940710a55744e185bdcebb95b2b0a79a96b02b4f0c5c93111211488.exe

    Filesize

    587KB

    MD5

    323954ae37bbe441003cdd2017f1377a

    SHA1

    647ffa9d0fef9b342f97484d7fb961d7cbf89bd0

    SHA256

    affa0c1b9940710a55744e185bdcebb95b2b0a79a96b02b4f0c5c93111211488

    SHA512

    b702f0249eecb6f4724271596062ac4b162aad1b903ff093d297adbeb8c42145254fae0ff5f656608c145a91ba10bc63ba8b9e2ef8dfdc28a9f9bb02d3bb1eb7

  • memory/1788-54-0x0000000000400000-0x0000000000521000-memory.dmp

    Filesize

    1.1MB

  • memory/1788-55-0x00000000761F1000-0x00000000761F3000-memory.dmp

    Filesize

    8KB

  • memory/1788-56-0x0000000000400000-0x0000000000521000-memory.dmp

    Filesize

    1.1MB

  • memory/1788-58-0x0000000003950000-0x0000000003960000-memory.dmp

    Filesize

    64KB

  • memory/1788-61-0x0000000000400000-0x0000000000521000-memory.dmp

    Filesize

    1.1MB

  • memory/1788-62-0x0000000003950000-0x0000000003960000-memory.dmp

    Filesize

    64KB