Analysis

  • max time kernel
    156s
  • max time network
    180s
  • 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, 14:14

General

  • Target

    1b1db5ed5531343e2dba027a199601c4.exe

  • Size

    437KB

  • MD5

    1b1db5ed5531343e2dba027a199601c4

  • SHA1

    5519d4304e99a367d7b02c45e37434ab0a7a9349

  • SHA256

    2dba89dc32c7ff570321047dc386a2e7ba0c425d031c02f531bff5cdc31a5338

  • SHA512

    9c63f9235f2ac5fdf13861221434466daa7f0d178e204d18c4ad16fecf4f9bfd0bad6755d451b3cb719b55f6ab0e4b9f98ebe4cdaab7450793b1d8fe9defb3e9

  • SSDEEP

    6144:rsnnF5vql91p+IoJP7HNfuIF7XLhjfDqM1Gz8HixXaZ0E9bnc2727vJA:inF1q5p+pP7px7XLV7qM1BEU1+27qJA

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b1db5ed5531343e2dba027a199601c4.exe
    "C:\Users\Admin\AppData\Local\Temp\1b1db5ed5531343e2dba027a199601c4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4788
    • C:\Users\Admin\AppData\Local\Temp\nsmF01A.tmp\APNStub.exe
      "C:\Users\Admin\AppData\Local\Temp\nsmF01A.tmp\APNStub.exe" /tb=BDE
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies system certificate store
      PID:3784

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\nsmF01A.tmp\APNIC.dll

          Filesize

          240KB

          MD5

          197215658b8015182192e1ebca3bbcc3

          SHA1

          40e49124ad0b55a25f947333ca88e9d0bc30a7e3

          SHA256

          08db125c09eb53cc28e7bc7c427b6c2217ff6134a122e6d65d1d24f70e875d9e

          SHA512

          5fe9d6c96c817bd64ea78ff511734e9e11e6ca13b4506b589156a801fa4fed568c37d958cfafb96ad86ee1229ceeb35165965cb776f3a74cafaedb1a946bbf79

        • C:\Users\Admin\AppData\Local\Temp\nsmF01A.tmp\ApnStub.exe

          Filesize

          139KB

          MD5

          c36923084822c017f69396418a999d39

          SHA1

          fdc2005ced8acf86c68fe1b86b0698d0539e8ce0

          SHA256

          7a158fdeea8f7107be5ce40242546a503193aa1c278f74a4730871b8edd0ba76

          SHA512

          fb1106d4f4a138cad28a4282cb00c72688e03610be1d31a7cdd7b42b23e00e4f7ca9e731a7ab016d5920411707e165e3ee48164ef520112d8ac36fad85749c44