Overview

overview

10

Static

static

3

190f773ed3...19.exe

windows7-x64

10

190f773ed3...19.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2023 12:50

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General

  • Target

    190f773ed3d95bbfa29183b62a313a19.exe

  • Size

    84KB

  • MD5

    190f773ed3d95bbfa29183b62a313a19

  • SHA1

    0c803d3076f01ef6c7e8cd7fb214d62e5f4e67a6

  • SHA256

    52b2a6a77bd992153e61d2be90152fe7c6f045c4411c5fdce15d55aef47146b3

  • SHA512

    1718f3bc1f7a2d6898b25e7d2d8bb083189ae743e8e216507b7c8a74aa3bbfd9a6c3c8a6a503d321fd7c9c650b5f591c040e59d8062e7425919222a77d2b909a

  • SSDEEP

    768:DyV+hOvEfswzDvgokIWi3KEyUhL7b7Yqlf4JwQltjmtTBHi7Alf:DoFv+jd76Ezh/vYlJwAitTB3lf

Score
10/10
evasionpersistence

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\190f773ed3d95bbfa29183b62a313a19.exe
    "C:\Users\Admin\AppData\Local\Temp\190f773ed3d95bbfa29183b62a313a19.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4140
    • C:\Users\Admin\riamiih.exe
      "C:\Users\Admin\riamiih.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
      • Suspicious use of WriteProcessMemory
      PID:4992
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 1576
      2⤵
      • Program crash
      PID:4920
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4140 -ip 4140
    1⤵
      PID:2520

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads

    • C:\Users\Admin\riamiih.exe
      Filesize

      84KB

      MD5

      bc724888f73af6d38c36e74ca363642f

      SHA1

      b8d6f19a1ea60f306e0aa824b5e3231e7426145b

      SHA256

      1de6223fd6e28e910852eb25bf772b9098a103019c051561db7e528007177e38

      SHA512

      06d5dc473d44aed929d8005e9324d15f971e04df58e612c2edcb321ccd975cd766e99404f9ae7166f84667994054a2966ba0564734dbfb6fcb0338517f366dd3

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