Malicious PDF — malware analysis report

Static analysis result for SHA-256 fccb2a57fcc2cbeb…

MALICIOUS

PDF

43.4 KB Created: 2021-05-11 13:34:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3dc9eb0dd89c192126da63174275618b SHA-1: 10e18f57a7487e5677c98a9387aad53c6f4b9a0c SHA-256: fccb2a57fcc2cbeb98d5628e5eeb7c4b8009e74cc164b8476f72f622059211b9
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 0.9648

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/406889139/coin-master-hack-tool-v1-9-pc-game-hack PDF link annotation
    • http://www.actae.gr/images/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://www.actae.gr/images/coin-master-daily-bonus-hack_GM406889139.pdfIn PDF document text
    • http://www.actae.gr/images/coin-master-free-spin-link-twitter_GM406889139.pdfIn PDF document text
    • http://www.actae.gr/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.actae.gr/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.actae.gr/images/mcpe-116_GM479516143.pdfIn PDF document text
    • http://www.actae.gr/images/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.actae.gr/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.actae.gr/images/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://www.actae.gr/images/coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://www.actae.gr/images/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://www.actae.gr/images/easy-robux-com_GM431946152.pdfIn PDF document text
    • http://www.actae.gr/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.actae.gr/images/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
    • http://www.actae.gr/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.actae.gr/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.actae.gr/images/robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.actae.gr/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.actae.gr/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.actae.gr/images/roblox-free-items-2021_GM431946152.pdfIn 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_off0000464c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x464C 23880 bytes
SHA-256: 93500938fb9c8c0e46103ee2fbca00a27df7fa272f240358bd8b84a38d7a6956
font_01_sfnt_off00007cc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC8 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off0000867a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x867A 18348 bytes
SHA-256: 043ae0b56aad5775724b1167a22d37e7f80b7d9c769434f087fac9bc97f423c4

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