Malicious PDF — malware analysis report

Static analysis result for SHA-256 7042b08f21a8e60d…

MALICIOUS

PDF

45.6 KB Created: 2021-05-14 07:01:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7d28b7e15153e9442ba7d818d2ba3ad4 SHA-1: afebb932ee994fedc5922141bcb78bac6bf59b78 SHA-256: 7042b08f21a8e60d29790b87ce01b75b54f2b61a5c260ec18454dfa53754ca0d
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 0.9507

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-70-spin-link-today-game-hack PDF link annotation
    • http://firstaidacademy.be/images/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/hack-coin-master-net_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-hack-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/open-coin-master_GM406889139.pdfIn PDF document text
    • http://firstaidacademy.be/images/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • http://firstaidacademy.be/images/rblx-gg-free-robux_GM431946152.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_off00004998.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4998 25496 bytes
SHA-256: 34f324567369715952d7469a972519a0ff8d20e5217d39d9abd44a53091689f6
font_01_sfnt_off000083b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B0 3204 bytes
SHA-256: 8c2546387700f45186c395d475006178ee984eabbc175bcf1ee6eb58ba8b57aa
font_02_sfnt_off00008eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EB4 18472 bytes
SHA-256: a3b16dd292719d3d3db8fc4f556ffe5ac43d4d3177a11b2b95197a9a65896a05

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