Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a69fe48c7f5ed20…

MALICIOUS

PDF

34.0 KB Created: 2021-07-03 21:41:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 46c3c0fedff15cf0553785bdd2da2a7c SHA-1: 3fe2b9a8e789655b680de334c4d2c8f2220529a0 SHA-256: 2a69fe48c7f5ed20e522956946d9e1170fbd3f63baf88dd77f65551b2a53fd42
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-map-game-hack PDF link annotation
    • http://chem.ipb.ac.id/kim/repository/rxgate-cf-free-robux-redeem-code_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/como-hackear-juegos-de-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-get-free-robux-no-inspect-2021_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-robux-world_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-free-snacks-link_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_off00002f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F73 22912 bytes
SHA-256: 29b61a2d0cee18e245a2516bacb0afba2f959c685873c8e1b8279ee0ab48d228
font_01_sfnt_off000062c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C3 18008 bytes
SHA-256: 86a391ddc39cc2d9bcaa98ae0fa2c73d02b6c377a90c5ed2edd851ee1c0c3217

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