Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3fab4a2099b25ed…

MALICIOUS

PDF

47.6 KB Created: 2021-06-03 07:22:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: fd5d6c3f68f4f38b424b427cb1ef80e2 SHA-1: 564c29f1a5dcfefe6143f913925da6405e0c1e73 SHA-256: d3fab4a2099b25edc869b2fdeaeac341cdf82d1492324df2502904297b8fba78
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 0.9769

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.online/app/479516143/minecraft-hack-client-download-game-hack PDF link annotation
    • http://lib.smklabor.sch.id/repository/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • https://playhack.in/minecraftIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053ac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53AC 25108 bytes
SHA-256: b648eb1dacfccd795e9f0d58352403a7c44dfd26eac9fcf1362ace316f6be9eb
font_01_sfnt_off00008ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CED 2912 bytes
SHA-256: fa76cc2dab30b56d5305de71ce949b6adffd6580af2f26905a33966a3200adbb
font_02_sfnt_off000096e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E9 18460 bytes
SHA-256: f0322949221cc4e2c5002b867d751862f4cd6735e4a5ba01a0e5101b475bc55e

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