Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbc20ee3c043dcaf…

MALICIOUS

PDF

34.4 KB Created: 2021-06-25 18:08:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 96f8fd9cd1a60e54954eede1fbae6e16 SHA-1: ee1f0905fc09699a8bd04ed7e8f84ef06c49eea4 SHA-256: bbc20ee3c043dcaf4cfd450e7c6dd8424e10f99e2c38da5dd26665647facf033
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/free-robux-scam-game-game-hack PDF link annotation
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/cheat-engine-roblox-jailbreak-speed-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/wurst-minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/how-to-make-roblox-dll-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/roblox-all-games-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/free-spin-coin-master-link-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-master-free-spins-bit-ly_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/coin-master-ios-hack-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-game-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6nganjuk.sch.id/__statics/gudangsoal/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF8 22404 bytes
SHA-256: d909a1fe349cebded52c46b5565e91645340f04baea2d956d57d37b268ae2620
font_01_sfnt_off000061e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E1 18976 bytes
SHA-256: 565d5b117fbfac2bc878383fc7f6da0996be6848eacc335861f24b8c02c679ac

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