Analysis

  • max time kernel
    120s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    04/02/2024, 16:18

General

  • Target

    uninstall.exe

  • Size

    285KB

  • MD5

    ac26380795ae1a3410ddc372487c88d6

  • SHA1

    4cdb5ee8f25fab513f1f4cf6004653b4961565ab

  • SHA256

    440b458e52ef5af7e2c3447de9a3d2ed3b81b66b131faa4e5cfd9c6ada02e3ee

  • SHA512

    27b549f171094519cd6dcc084fdd0a1d9fc01e192198d62fa27bf50ae6d2443168bf218e8634f129b779419ac8fc4928346b440e1149715ef274b2f62c3544da

  • SSDEEP

    6144:Ee34JMpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1p:8QeZHkwuPikQ7lKH5p5H9x1p

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).

  • NSIS installer 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uninstall.exe
    "C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1616
    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2208

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\nsd9D2A.tmp\aminsis.dll

          Filesize

          559KB

          MD5

          51ba1095f0ae45a2d444bea506cb9ad4

          SHA1

          038a5d53d055a6d440bd2c8864c2f51db206c5e5

          SHA256

          b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

          SHA512

          f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361

        • \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

          Filesize

          285KB

          MD5

          ac26380795ae1a3410ddc372487c88d6

          SHA1

          4cdb5ee8f25fab513f1f4cf6004653b4961565ab

          SHA256

          440b458e52ef5af7e2c3447de9a3d2ed3b81b66b131faa4e5cfd9c6ada02e3ee

          SHA512

          27b549f171094519cd6dcc084fdd0a1d9fc01e192198d62fa27bf50ae6d2443168bf218e8634f129b779419ac8fc4928346b440e1149715ef274b2f62c3544da