Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcd9b464667fcb78…

MALICIOUS

PDF

43.7 KB Created: 2021-05-16 07:41:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 3fbc7d11846aab56f505a7d6762f0489 SHA-1: 39504326289b9fd68bc1668bea72ac911797537e SHA-256: dcd9b464667fcb78c1ad1c134a25d149db1baa36a6d1866402b23f547d478a83
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 0.9969

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-free-spins-link-2021-today-game-hack PDF link annotation
    • http://modlingua.com/images/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/50-000-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-free-spin-link-new_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004aea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AEA 25668 bytes
SHA-256: f7d35577d4902531c57e2dfa1ab9512ef9d1a5c569d454cf1219d3d9fbdd2a7d
font_01_sfnt_off000086da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DA 18812 bytes
SHA-256: 705c5903f824403b328e8e9dbd2ab52a650d097fc3c0d4bbd34be772086d041a

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