Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e8c0eb6629e464d…

MALICIOUS

PDF

36.1 KB Created: 2021-07-06 00:36:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0fbb55c79ac37b6a36c64f34d481419a SHA-1: 1553eef672814e514402de592446e2395b893daf SHA-256: 6e8c0eb6629e464db452ac060ebf7f7c7c22ca736a616d21920578a1df4b01ef
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.tw/app/406889139/coin-master-hack-xyz-game-hack PDF link annotation
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/free-roblox-account-with-all-elements-on-elemental-battlegrounds_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/try-on-all-animations-for-free-roblox-script_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/coin-master-update-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/roblox-xxtrefetrxx-is-hacking_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/urbx-club-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/coin-master-card-link-free_GM406889139.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/how-to-get-free-knives-in-roblox-assassin_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/how-do-you-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/roblox-after-effects-download-free_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/vheachle-simulator-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/online-hacking-tricks-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
stream_002_off000034c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34C4 23424 bytes
SHA-256: e09ab0326fac9e5b2138ba9458e1c7f161ddfda591720dc13999ead9981e701f
font_01_sfnt_off0000699c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x699C 18496 bytes
SHA-256: bd2c90d618eff90014fde70917c30f451870fa3342cf3e365369efdfab30b31e

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