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Analysis

  • max time kernel
    134s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/10/2024, 22:50

General

  • Target

    uninstall.exe

  • Size

    289KB

  • MD5

    00dbbc94401aca87d8de9b48c746afa7

  • SHA1

    228fd0c05fcbb67b52b9e321943919431ab147df

  • SHA256

    d965a2b82fde487a4fa44074142f36dddee70779e780648a888586c658eb595a

  • SHA512

    28c0a1efd30d0b7106965037fba75be2ee97b7fad762e08aa91f4f96903e6796bfefcc933f04109f25441b020b4c5b8eb3d412b9b3506494ab2232e3849df7a6

  • SSDEEP

    6144:Ue34LDRg4l8ai5PQtTZ763J8eWW43YLYjn5uO7D32fuCa7BmT:aDq4OaQQTYJ8eP4/L5uO7D3f5BO

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 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).

  • 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.

  • NSIS installer 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uninstall.exe
    "C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1480
    • 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
      • System Location Discovery: System Language Discovery
      PID:1260

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsnB41E.tmp\aminsis.dll

    Filesize

    567KB

    MD5

    450753ad96785a240a39deccab3af0d0

    SHA1

    21c544064d2ffa6444508268ce258a330d459fc5

    SHA256

    1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

    SHA512

    c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab

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

    Filesize

    289KB

    MD5

    00dbbc94401aca87d8de9b48c746afa7

    SHA1

    228fd0c05fcbb67b52b9e321943919431ab147df

    SHA256

    d965a2b82fde487a4fa44074142f36dddee70779e780648a888586c658eb595a

    SHA512

    28c0a1efd30d0b7106965037fba75be2ee97b7fad762e08aa91f4f96903e6796bfefcc933f04109f25441b020b4c5b8eb3d412b9b3506494ab2232e3849df7a6