Analysis

  • max time kernel
    118s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/11/2024, 17:02

General

  • Target

    27c04b19777e433450a56d2f684a14ef525fc30dc40a6467215d0d473ce9729dN.exe

  • Size

    2.6MB

  • MD5

    dc534873a9ba105945ebf06e192419f0

  • SHA1

    b51bda8ba241a8554fadbf7a8613e9f2bf055b89

  • SHA256

    27c04b19777e433450a56d2f684a14ef525fc30dc40a6467215d0d473ce9729d

  • SHA512

    8aae109d654457002c11c5537d1078a03fe1304a62725830a62326b29aedd5aba70a29b88f67ebbe1a696369698238946b1a8de0e6ce011004c9463e698819fd

  • SSDEEP

    49152:sxX7665YxRVplZzSKntlGIiT+HvRdpcAHSjpjK3LBGB/bS:sxX7QnxrloE5dpUpZb

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27c04b19777e433450a56d2f684a14ef525fc30dc40a6467215d0d473ce9729dN.exe
    "C:\Users\Admin\AppData\Local\Temp\27c04b19777e433450a56d2f684a14ef525fc30dc40a6467215d0d473ce9729dN.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3820
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecxdob.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecxdob.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2148
    • C:\UserDotVQ\aoptisys.exe
      C:\UserDotVQ\aoptisys.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1088

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\UserDotVQ\aoptisys.exe

          Filesize

          2.6MB

          MD5

          4b518263202f498f7af5c6619fe49bb3

          SHA1

          db79fb2628061b174d0260c33ddd44226f6a68ba

          SHA256

          09454710f5f1cfed78935b122b403dac84cabc870af3dae7b70bbdbe2638ca3a

          SHA512

          431a00ecf19073fc898b4048bd7f19759da6454e9d42030a4a925bd546ff146eb011e7ffbe384463b91f7290516ced29435b51af4d5e872e4086699b6186b001

        • C:\Users\Admin\253086396416_10.0_Admin.ini

          Filesize

          200B

          MD5

          48a32d6c46cbdae91007ff6b258ee926

          SHA1

          1193bda0a694270e046718e698707e43a2731215

          SHA256

          1e5deff6e23c5670224ac73e516b1f50997708887db2ccb2e05d4cf7ab632344

          SHA512

          e2149d5682e8d429766d06cae9004312aa1072e0ee20c4fa4ecb85941d8c40ddaf6b7f7a4d55ad9ef6329891323d544f423bcbbe3494812048440d5659862072

        • C:\Users\Admin\253086396416_10.0_Admin.ini

          Filesize

          168B

          MD5

          f58efc30fa7198ae7901d121359d131d

          SHA1

          ef7a854eaa90538992292d354fba180f57cf46d0

          SHA256

          a403724323d870f9120b28d860f9b29f905e68cfee08bb03119ac40272ba2d1c

          SHA512

          2699ad90d8c4bdf0f40a70e893f694c9b7adc72513f20e39f78371169c2d50e3ab2a844a85241e500e3a40eb186e4f307712fe08387dcddac818332157b6c958

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecxdob.exe

          Filesize

          2.6MB

          MD5

          a2a581db026de8ce1166289fc261d645

          SHA1

          7ce634202504c4ef0982b7bd2b6285c50e6f8c42

          SHA256

          796f6d70eafd68abb4dc07903534361ce2022b73010e856f92ff192550a72f0a

          SHA512

          783acf2ab32d43495d8fc8188520bbb37e01563c715423d59c98adb9a1fa077a7f5d91f5ab2f936cf7ef37929afb6779db2cb0b7193397dd892fa150b5950055

        • C:\Vid6X\dobxec.exe

          Filesize

          31KB

          MD5

          572f2f89fa83cd0e724756eb089249da

          SHA1

          cbfdd4e1e893e9f876d46a79247f38ade618a89b

          SHA256

          cf6be1e16babe319685181c0bc39e48b663392fba1475e11b83d9b9b772a2f54

          SHA512

          16d7748321e538202b878a175d219dd117f409a88d9ea0f79d0f873a9872b9c287f5166a26419d18ca54609ccd763dbef4b000816d7a243b0822fd78adb35950

        • C:\Vid6X\dobxec.exe

          Filesize

          2.6MB

          MD5

          c9556a756eb2979a539c7a3389df8db5

          SHA1

          c7f3052341b162c945d112a1d85f94e0596b4d0e

          SHA256

          6ce36fcd53b50604507da6f65f2b2b08ffefefa43f9c5091ab631d3e8c68cb2c

          SHA512

          a23f7b8cadf569031aee70f6356f49ccef19c3be2682bcb59b34201a268b4d391eda95ee98fcd3e2852c797fde8ef67ae9568814848427cf4e01ac5c0b5196f4