Malicious PDF — malware analysis report

Static analysis result for SHA-256 e233ec8316316375…

MALICIOUS

PDF

41.2 KB Created: 2021-05-15 13:07:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8a1f9e70b9ace50f3bcad4cb61520ab7 SHA-1: 7bc7753aa417f9fc446f611d590e2497cdb78b08 SHA-256: e233ec831631637531fba5a2c9de7a237e0e16c9a9c04f6df8522a70425eff52
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 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-hack-mod-apk-game-hack PDF link annotation
    • https://dirigentigiustizia.it/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-get-free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/robux-in_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/roblox-hack_GM431946152.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_off0000483c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x483C 24208 bytes
SHA-256: fbd4becb6580757fda3decf0773c104a0f72c83870aac43d0fe622b2cd5162d4
font_01_sfnt_off00007f28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F28 18068 bytes
SHA-256: 8758dd50bc7648d35d2c531368c06e2fb0219f77b8251a32ffca1508c8a7ec2c

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