Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2024, 07:29

General

  • Target
    e6f0e0dd6a69c13aac1b3e30c849fbeb_JaffaCakes118.exe
  • Size 255KB
  • Sample240408-jbcapsbh43
  • SHA256 2b539fa1bad0f77c8fdf0863bc244ab799913bd6761b00f35476f6a041aaf435
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 3 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 4 IoCs
  • Modifies registry class 45 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e6f0e0dd6a69c13aac1b3e30c849fbeb_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e6f0e0dd6a69c13aac1b3e30c849fbeb_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\511d3e433c8e1.exe
      .\511d3e433c8e1.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:4224

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

        • Path C:\ProgramData\SaveAs\uninstall.exe
        • Size 48KB
        • SHA256 a76272ed3bbf23308782a308d428ee805ec77fbb622a830af26cb0ddbbf7377b
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 4d1093ca2f7580a0a4270ac94345ee9133247be4d7c5ece8639abd30b1ff4217
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 c074fea78e04068b2ab2f8e2ef306434e6c06370697b8b6a14eb6495837933b2
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 956aeea166284838e6106c715518efad8f9d888f88a26acda772c16720d995b8
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 bf9fb14b6bc5a4985367707c418c06aa79643aabbc8a5e82302f0e15e737aed5
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\[email protected]\install.rdf
        • Size 702B
        • SHA256 5088c1a8951a240c03dce58b08bf7c9cd765da4e978d850b4c132f4d5b8717a8
        • MD5 SHA1 SHA512

        511d3e433c8e1.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\511d3e433c8e1.exe
        • Size 71KB
        • SHA256 d205693516dbaf34cfbd216e825190de4de1412e861bc9cb30ce863907b30d22
        • MD5 SHA1 SHA512 SSDEEP

        511d3e433c919.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\511d3e433c919.dll
        • Size 115KB
        • SHA256 d4bb7937b36973cbf3b12c9500c25ed34103944a69bad9162f3b98f39474529c
        • MD5 SHA1 SHA512 SSDEEP

        511d3e433c919.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\511d3e433c919.tlb
        • Size 18KB
        • SHA256 ac3a1daa32b1c489f9c2f4413ab35c4fc90b54a52ede0fb53276666e6eeef16f
        • MD5 SHA1 SHA512 SSDEEP

        511d3e433c6e87.74172477.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\jienbmenpkkmcbjmhablnijaapkojhja\511d3e433c6e87.74172477.js
        • Size 4KB
        • SHA256 084930e965b4364030def5217a20482813741ded9d098ffb9a77aaaa8c321056
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\jienbmenpkkmcbjmhablnijaapkojhja\background.html
        • Size 161B
        • SHA256 7bafc68f021511dcb81764da0c6a3b79211bcb2ddccb42e812ec3811b1db21c3
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\jienbmenpkkmcbjmhablnijaapkojhja\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\jienbmenpkkmcbjmhablnijaapkojhja\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\jienbmenpkkmcbjmhablnijaapkojhja\manifest.json
        • Size 496B
        • SHA256 02f57e11882106f3c9b890a4fe60bd24c897995ae493f9b6199955d9a1a56635
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\jienbmenpkkmcbjmhablnijaapkojhja\sqlite.js
        • Size 1KB
        • SHA256 225fb24fc0f7a3a43422d8109406f3bfe771314f170fe326d6c06e93cdd42f38
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4B22.tmp\settings.ini
        • Size 7KB
        • SHA256 6992f5dd3f92236bc8f8112465fecb6f924f88d085654d216c468d44b45496c9
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsc4C2D.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsc4C2D.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/4224-78-0x0000000073E20000-0x0000000073E2A000-memory.dmp