Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fafe7ae2902f4f1…

MALICIOUS

PDF

34.1 KB Created: 2021-07-06 18:12:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c504925407e55bc4c24a5f9c6c2dd660 SHA-1: 6246f37b44c0b1e6343314e828a433cb98e8bc4b SHA-256: 0fafe7ae2902f4f1720082c05f58d91640e424591ea1ec1c07531c7a31e243ba
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-offline-hack-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/free-robux-facilement-et-gratuit_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/when-is-john-doe-going-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-redeem-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/abs-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-pin-codes-free_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-link_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-someone-robloxs-account_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/rblx-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/flame-roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hack-revealed_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-cheat-dungeon-quest_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/da-hood-hack-tuto-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-free-bir_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-finish-obby_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-pokemon-brick-bronze-beta-camino-4-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-hack-fr_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-gameplay_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_off00002e3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E3A 23312 bytes
SHA-256: 57b596f4f2811ced62b76e67dce19f7221e547dfef8bf0f30cd3b17633946116
font_01_sfnt_off000062f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F8 18080 bytes
SHA-256: 9b148c07d0dc3f850c335ec76a4603c5a5b6178ea849a51312e67b1c4b02565b

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