Analysis

  • max time kernel
    140s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • submitted
    09/11/2024, 19:26

General

  • Target

    9d8339d342ed747583da03583afdb445.exe

  • Size

    451KB

  • MD5

    9d8339d342ed747583da03583afdb445

  • SHA1

    ab2bbc7c5af8913c66c75331d62b6fede68d46b7

  • SHA256

    695b8d6b97edf8239d5ae772c2d726740d81a0b4893199c3be812406e0942123

  • SHA512

    46be1b3eb7c57056625a1176ed77a620e9bd5a40713a3e4d61be5ebd7e215ec988977c0e5c9cba1ff1013eede89ae9bb07e6149d6d58fcb73f9f61415fbd3be1

  • SSDEEP

    6144:dE0b6CikANLQUmtn37+tm/jEgEn7vZSwZjJP27UxQ76gXFu/s+2abgbqhT9bQu:dE0bzFqQdl7+tGjyj1fxQzXas+2O2a

Malware Config

Extracted

Family

stealc

Botnet

default10

C2

http://62.204.41.163

Attributes
  • url_path

    /16fa04073490929d.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe
    "C:\Users\Admin\AppData\Local\Temp\9d8339d342ed747583da03583afdb445.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4628
    • C:\Users\Admin\AppData\Local\Temp\E6C6.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\E6C6.tmp.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2396
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 1016
        3⤵
        • Program crash
        PID:1428
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2396 -ip 2396
    1⤵
      PID:3424

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\E6C6.tmp.exe

            Filesize

            303KB

            MD5

            f7e637924f021b359d158d31c93d239f

            SHA1

            dfc068dc3c019741c56481bdc1d2ff216ac50765

            SHA256

            f87fafe5077d57748093d125dccf8fb8d80bed99de2f11c5032ddd80ae09b3b1

            SHA512

            2203fcb797198774dd9a43304a221849e2170c3c6dc8b55c7859a0482026c1dfdb6bcae74fe35c6296fa954fe0fd2b571c1f2b411259a667247d2d3b15ccfd9c

          • memory/2396-30-0x0000000000400000-0x0000000002B50000-memory.dmp

            Filesize

            39.3MB

          • memory/4628-1-0x0000000002D30000-0x0000000002E30000-memory.dmp

            Filesize

            1024KB

          • memory/4628-2-0x00000000047D0000-0x0000000004835000-memory.dmp

            Filesize

            404KB

          • memory/4628-3-0x0000000000400000-0x0000000000468000-memory.dmp

            Filesize

            416KB

          • memory/4628-4-0x0000000002D30000-0x0000000002E30000-memory.dmp

            Filesize

            1024KB

          • memory/4628-6-0x00000000047D0000-0x0000000004835000-memory.dmp

            Filesize

            404KB

          • memory/4628-5-0x0000000000400000-0x0000000002B74000-memory.dmp

            Filesize

            39.5MB

          • memory/4628-7-0x0000000000400000-0x0000000000468000-memory.dmp

            Filesize

            416KB

          • memory/4628-14-0x0000000000400000-0x0000000002B74000-memory.dmp

            Filesize

            39.5MB

          • memory/4628-29-0x0000000000400000-0x0000000002B74000-memory.dmp

            Filesize

            39.5MB