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Analysis

  • max time kernel
    152s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07/11/2022, 20:50

General

  • Target

    871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe

  • Size

    288KB

  • MD5

    008cc9458ab5b759970218c84497f640

  • SHA1

    1130fcd45a6bd8479b57c8b78012351fd0799258

  • SHA256

    871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03

  • SHA512

    c47d7ffa49d32ef8bae0292884ae86aaf0e6664ba347313b058a3c1c4e03b82bf4924a5df8711704866359e36441c271affe428cb6e069962c09f226464b6fc8

  • SSDEEP

    3072:AU0nFShQdibOZAksTCPkix7Fe7dEN8EXgNqf5cTrWi6ei2uiTbtTmH8Fe90p06tl:709iTbYJFsE0NMCP6wJYj8t/V3

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 54 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe
    "C:\Users\Admin\AppData\Local\Temp\871bc5f8b056e27e56040f6aeaae54d78c3362d4d5e8d4dc62e5adf1fdafac03.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Users\Admin\zchax.exe
      "C:\Users\Admin\zchax.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1740

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\zchax.exe

    Filesize

    288KB

    MD5

    de47c2f3e62f438b792da87036e18232

    SHA1

    92802a51e3018572630e73dcee3e945f9b1cfc25

    SHA256

    fa54d90bd0befe350c1a36ac4af7e05c50919b29a9abeb772fe4b4696207922c

    SHA512

    431dbb5cd63ab2c0d492a459ea9a6a9a7e879074098ae3ef428828ad72a18bdb41aa8d25d3b7f0375a39a7216113064d7f2426c53e93fef785ebd16c70cfad69

  • C:\Users\Admin\zchax.exe

    Filesize

    288KB

    MD5

    de47c2f3e62f438b792da87036e18232

    SHA1

    92802a51e3018572630e73dcee3e945f9b1cfc25

    SHA256

    fa54d90bd0befe350c1a36ac4af7e05c50919b29a9abeb772fe4b4696207922c

    SHA512

    431dbb5cd63ab2c0d492a459ea9a6a9a7e879074098ae3ef428828ad72a18bdb41aa8d25d3b7f0375a39a7216113064d7f2426c53e93fef785ebd16c70cfad69

  • \Users\Admin\zchax.exe

    Filesize

    288KB

    MD5

    de47c2f3e62f438b792da87036e18232

    SHA1

    92802a51e3018572630e73dcee3e945f9b1cfc25

    SHA256

    fa54d90bd0befe350c1a36ac4af7e05c50919b29a9abeb772fe4b4696207922c

    SHA512

    431dbb5cd63ab2c0d492a459ea9a6a9a7e879074098ae3ef428828ad72a18bdb41aa8d25d3b7f0375a39a7216113064d7f2426c53e93fef785ebd16c70cfad69

  • \Users\Admin\zchax.exe

    Filesize

    288KB

    MD5

    de47c2f3e62f438b792da87036e18232

    SHA1

    92802a51e3018572630e73dcee3e945f9b1cfc25

    SHA256

    fa54d90bd0befe350c1a36ac4af7e05c50919b29a9abeb772fe4b4696207922c

    SHA512

    431dbb5cd63ab2c0d492a459ea9a6a9a7e879074098ae3ef428828ad72a18bdb41aa8d25d3b7f0375a39a7216113064d7f2426c53e93fef785ebd16c70cfad69

  • memory/1752-56-0x0000000076261000-0x0000000076263000-memory.dmp

    Filesize

    8KB