Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f91564248ee1139…

MALICIOUS

PDF

44.9 KB Created: 2021-05-14 03:30:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c33515b956468a607c81fce2db20b4ee SHA-1: 921ff635edb4eb3e4e3eb1c6272d2234339b0209 SHA-256: 0f91564248ee1139452da948220e5caa52a185727632084c78271022ea604c0d
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 0.9632

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/free-coins-and-spins-coin-master-2021-game-hack PDF link annotation
    • http://neumann.fr/images/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • http://neumann.fr/images/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/is-minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://neumann.fr/images/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/coin-master-link-spin_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/mcpe-download_GM479516143.pdfIn PDF document text
    • http://neumann.fr/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048d8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48D8 24776 bytes
SHA-256: 0e7f3e201e844e9b2437040a96c7eebcefb25641ed3c7abebad11c9d3c577e11
font_01_sfnt_off00008208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8208 2944 bytes
SHA-256: fcfcd28869b8d6c7503d63ed8d48371ec5b580fea2733193e2acbb82b3d30a76
font_02_sfnt_off00008c33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C33 18460 bytes
SHA-256: 871f0cb0a27f8e5dd89901f10b004c29658dd5d4ba968b8e0fec3a5b4bbe6c5a

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