Analysis

  • max time kernel
    93s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/02/2024, 00:08

General

  • Target
    9c71ef58860867693856fb3e416119fc.exe
  • Size 1.0MB
  • Sample240215-ae4dxscc6t
  • SHA256 24e9e48f6834b4815e2f98e3ce0b31917565bb7f69fcd06de9b0e38164677e27
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

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

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops Chrome extension 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c71ef58860867693856fb3e416119fc.exe
    "C:\Users\Admin\AppData\Local\Temp\9c71ef58860867693856fb3e416119fc.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4728
    • C:\Users\Admin\AppData\Local\Temp\00294823\k4tzcp.exe
      "C:\Users\Admin\AppData\Local\Temp/00294823/k4tzcp.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies Internet Explorer settings
      • Modifies registry class
      • System policy modification
      PID:2972

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        IFjE_.dll

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\IFjE_.dll
        • Size 258KB
        • SHA256 9900e517bfd4b39bd7af4bb360af52f6c95ef9b3e7ef36d2633485c58bef9a1a
        • MD5 SHA1 SHA512 SSDEEP

        IFjE_.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\IFjE_.tlb
        • Size 2KB
        • SHA256 66fab808188a98ba49d99b723a181aa6626197d50bd2d5e15e076dcbc6fbb2cc
        • MD5 SHA1 SHA512

        IFjE_.x64.dll

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\IFjE_.x64.dll
        • Size 319KB
        • SHA256 870c280ea861313edda0bd3950dc738ea68d006f315888d66023b54e5f98f0ea
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 a7dfea4bf7e1d46a8b8e64ccfb2cf35017e3a5b350eead26d6671254d2b3c46f
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\chrome.manifest
        • Size 104B
        • SHA256 6030af5e0badeede7e4dbd0aa88dafa7735acb0843b979dda856c007ba973da0
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\content\bg.js
        • Size 9KB
        • SHA256 d694828d29de19d1a9e507bf703e88f0ee94b7179d61e0366729da1309c9a00c
        • MD5 SHA1 SHA512 SSDEEP

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\install.rdf
        • Size 608B
        • SHA256 ff0e32f40d81a66dfcb6b50871ad16fcded7faba2e1ac73f5ff546dfcd4ea44b
        • MD5 SHA1 SHA512

        k4tzcp.dat

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\k4tzcp.dat
        • Size 3KB
        • SHA256 b73fdf53b0c1578bca9b03bb3663ac33f57cb7e0ed4f66c9a53200f3abd23c86
        • MD5 SHA1 SHA512

        k4tzcp.exe

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\k4tzcp.exe
        • Size 334KB
        • SHA256 f54a6814ac06c70ef5b738eca4855e49039783d96b70ba1ae461bd90877e53b5
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\pdojnhmmcmgkgfgaacilaaohmhipocdb\background.html
        • Size 143B
        • SHA256 9e5f73d7f9c8979cc32c0293a5b978f66c71745b9a1635eb14b8e6a8dc079fc3
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\pdojnhmmcmgkgfgaacilaaohmhipocdb\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\pdojnhmmcmgkgfgaacilaaohmhipocdb\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\pdojnhmmcmgkgfgaacilaaohmhipocdb\manifest.json
        • Size 510B
        • SHA256 4ddc9064f1e661184e07fbc71b8ffc22012aa0258a8c32f06dda49b68a894754
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\pdojnhmmcmgkgfgaacilaaohmhipocdb\sqlite.js
        • Size 1KB
        • SHA256 36136487a66759496763a486173d48c8d215ecff069076b9a1484d1375738102
        • MD5 SHA1 SHA512

        sqwlPc.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\pdojnhmmcmgkgfgaacilaaohmhipocdb\sqwlPc.js
        • Size 5KB
        • SHA256 2ba1703166ce3f987d8ef793beec80b2bb2f47133b823e8585a7b4bc150573ba
        • MD5 SHA1 SHA512 SSDEEP