Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee58c5dbbb9ebff…

MALICIOUS

PDF

33.9 KB Created: 2021-06-18 11:01:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6737b6801c5111b1f914ff9a35d95134 SHA-1: abb2a3f289cc9bf6b3134f8e1fb9db65b35b8f13 SHA-256: 3ee58c5dbbb9ebff3025c8d2a98e111529cc89ef91675b3f72485f1b9924a3e6
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/hack-para-jailbreak-roblox-2021-game-hack PDF link annotation
    • http://schoolsupportandbeyond.org/images/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/pubg-uc-dealer_GM1330123889.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/roblox-hack-unlimited-robux-generator_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/roblox-red-hoodie-free-now_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/how-to-get-free-robux-with-roblox-redeem-card_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/pokemon-go-free-vs-premium_GM1094591345.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/roblox-free-download-games_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/how-to-hack-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • http://schoolsupportandbeyond.org/images/free-chains-on-roblox_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_off00002d44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D44 22316 bytes
SHA-256: 314a4cd80481556939dc8f22ad3829946fa1ec28ba1ffa003ccfd6ace1b9a6af
font_01_sfnt_off00005e91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E91 19312 bytes
SHA-256: 5ba1e2ec4da91c7fa72703bdf47642010cdeaa4b2dec3fcff041172844c73de0

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