Malicious PDF — malware analysis report

Static analysis result for SHA-256 6807784cc542b140…

MALICIOUS

PDF

44.1 KB Created: 2021-05-10 15:54:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 7db4366eff6363830800234c537eb041 SHA-1: f924aa8664fbcf4d02c95cad1833589f79e5b1b0 SHA-256: 6807784cc542b1408a288239477769e909cd5949bd8fd6f0a2f37b0fd82fd273
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 0.9976

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/static-moonactive-net-free-spins-coin-master-game-hack PDF link annotation
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/robux-place-rewards_GM431946152.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/freespinandcoin_GM406889139.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/my-roblox-avatar_GM431946152.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/coin-master-cards_GM406889139.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/minecraft-tools_GM479516143.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/roblox-com-www_GM431946152.pdfIn PDF document text
    • https://learning1.misbidayatulhidayah3medan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack_GM431946152.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_off00004d50.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D50 26780 bytes
SHA-256: b858047c3abbb02d1fc5f4c7e49706e3c841f82450a94590e0d91a10d0d9224e
font_01_sfnt_off00008b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B2A 18000 bytes
SHA-256: 550c58a86183c192f11bd993c378cabcbb9cb434b0a2a3ed80188f155553ce19

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