Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f2ee935b75e00f8…

MALICIOUS

PDF

44.3 KB Created: 2021-06-04 03:30:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 26e7770a5bd6f0f65e3781b5ec97d1d3 SHA-1: 653d48b636f32ec4d16f985befb299383bb0ebbe SHA-256: 2f2ee935b75e00f80731d9e5521a7859a7b922af6944cca57d105dd4318f71bb
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links disguised as game hacks and cheats, indicating a link farm or phishing attempt. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URIs and the overall structure suggest an attempt to redirect users to malicious sites, likely for malware distribution or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/android-coin-master-hack-game-hack PDF link annotation
    • https://lib.btkljogja.or.id/repository/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-scam-on-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-download_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-minecraft-texture-packs_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
stream_004_off00005320.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5320 24692 bytes
SHA-256: 6de43859af51a2c2d52341a167c502af779661f44e03fc6c90f24f4a8e89727e
font_01_sfnt_off00008bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC3 17888 bytes
SHA-256: f3c500806d6f063b4976708b2d9a1b6d3d25ac0b83d617d4d708477778ab7703

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