Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdc2f2f38e4e3612…

MALICIOUS

PDF

42.1 KB Created: 2021-05-16 19:05:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0fed4798433707d8ffb44bf27f83b3ce SHA-1: 083eafbc4ed55c0981cba699080685489a6476fd SHA-256: cdc2f2f38e4e3612eb1639335a23689bc5e7ffb9623ad411ab4b380c2da30e23
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 0.9971

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/descargar-coin-master-hack-game-hack PDF link annotation
    • http://iedarelief.us/images/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-android_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-33-hack-version-download_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
stream_003_off00004897.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4897 25144 bytes
SHA-256: 952ad688662782394d0a3feb2d0854a6cb04f5d8caf8b4686d283e5a5fec7ebd
font_01_sfnt_off00008290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8290 18172 bytes
SHA-256: c3867332f4dfccc328b78f313c3490d7baeec2f340b73ce4d0aaf0744ae5e9be

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