Malicious PDF — malware analysis report

Static analysis result for SHA-256 846d5a7f37412691…

MALICIOUS

PDF

42.4 KB Created: 2021-05-15 07:41:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e8327f2afa29c898cece9bf2160acc69 SHA-1: 837fdbc2ae346d3bcab2aa9fed66d35c28685afb SHA-256: 846d5a7f37412691cad2fa11ba6452897164660ca85df8254fa8f5c72d4611e9
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 0.9962

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/431946152/roblox-avatar-com-game-hack PDF link annotation
    • https://www.cosmosdawn.net/images/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/rbx-robux_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/coin-master-tips_GM406889139.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://cosmosdawn.net/images/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/coin-master-free-spins-daily-1-ga_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
font_00_sfnt_off00004800.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4800 24908 bytes
SHA-256: 01d24860188c1bf0184e8e1163f820a87b2b41e0cad9f3376adf7f6cdc2d6728
font_01_sfnt_off00008065.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8065 19208 bytes
SHA-256: 47a53faf09daca43ef96754bcf793be6420da1df3a52429cd5f21cae2800bc11

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