Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4acc04472473fe1…

MALICIOUS

PDF

35.4 KB Created: 2021-06-30 05:30:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2c3194b8ca4f50180318533808ecdcb9 SHA-1: 134415e3808d2da04e4a51fe0387bf91ff685bdb SHA-256: f4acc04472473fe1e4cf1aa1736690499b8b0996a33393809f0cd607754bac8f
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/cheat-engine-bypass-roblox-2021-game-hack PDF link annotation
    • https://digilib.akperkabpurworejo.ac.id/repository/robux-redeem-codes-free_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/free-robuxs-by-bananaman2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/minecraft-112-2-hacked-client_GM479516143.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/free-robux-generator-kid-friendly_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/100-real-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-spins-and-coins-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-extra-spins_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-code-hack-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/minecraft-client-download_GM479516143.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/free-robux-no-apps-to-download_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-account-hacke_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/money-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-robux-no-human-verificarion_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.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_off00003073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3073 22860 bytes
SHA-256: 465e41c8074de4946bbb50b8d859adae709465294ff5f6053922f227062cb6b4
font_01_sfnt_off000063b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B4 19632 bytes
SHA-256: 13279fab2839127e5dbe4e1b7d9a481c91e189710a0febda3428d502f47a4302

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