Malicious PDF — malware analysis report

Static analysis result for SHA-256 87bb0cf6d6bf999d…

MALICIOUS

PDF

44.9 KB Created: 2021-05-16 03:27:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 4b2cc74d97c35092abd801497084c1d5 SHA-1: 306379d0f121209abd82ac425778b315208702fa SHA-256: 87bb0cf6d6bf999d2b6365b0b7e86f7f19082a2e760413f9666f019e429735c3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including one identified as a 'free generator / game hack' lure. The document body, though partially corrupted, contains references to game hacks and download links. The presence of these links suggests the document is designed to trick users into visiting malicious sites, likely to download further malware or engage in fraudulent activities. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/479516143/minecraft-survival-free-game-hack PDF link annotation
    • https://dirigentigiustizia.it/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/mistplay-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-android_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-roblox-svg_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-roblox-codes_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://youtuIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004adf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ADF 25500 bytes
SHA-256: 9a91839770c345dbc71ba6d780bd845945264c93515dbf8acf1fd1bd3d1049af
font_01_sfnt_off00008496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8496 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off00008e36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E36 17896 bytes
SHA-256: ae22d75e7686c6a225539c41209adbc632e29a8ac914593cbcf88605996e660b

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