Malicious PDF — malware analysis report

Static analysis result for SHA-256 a304ae9e7a2ba128…

MALICIOUS

PDF

33.7 KB Created: 2021-06-22 21:16:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 68b7f4ccff1171ed24b87f6686194aa1 SHA-1: 1b69c74eb4d3b2d68def57655ab5a39f8ab0e922 SHA-256: a304ae9e7a2ba1283a40d4b25937d5333a90f2e03e19ab91ec1e725ea8f0d8df
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 0.9980

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 http://netcdn.co/app/431946152/free-credit-card-to-buy-robux-game-hack PDF link annotation
    • http://livsgnistans.se/images/hacking-robux-for-money_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-fnaf-rp-how-to-get-free-via-ilovecat123_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-cheat-engine-hacks-2021_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-tshirt-free-2021_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/free-draw-roblox-anime_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-how-to-get-any-gamepass-for-free-2021_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-set-up-pf-pros-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/coin-master-free-spin-and-coin_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
font_00_sfnt_off00002ca1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA1 22248 bytes
SHA-256: 0a35c52cd49a53ed1f146f5b8f53a163c44f3724cbe20d85dc1e3533839e1ae8
font_01_sfnt_off00005dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD9 19296 bytes
SHA-256: 4719ec61122d8cec3862bce85860b4f5c43a707588201c8b9b60f487eebb80e0

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