Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b925c2eb50a2410…

MALICIOUS

PDF

42.6 KB Created: 2021-05-13 08:06:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 259bd2859e8ec7fb89a5e669034a5344 SHA-1: 56a9f988400d908b6c27227a6fe4f297e8228e81 SHA-256: 3b925c2eb50a24106fc1e876c133d15187ab60bb008a259036653d7ce1ab2c93
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including a primary external URI pointing to a download page for a game hack. The ML classifier and PDF link farm heuristics strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded links suggest it's designed to trick users into downloading a second-stage payload, likely through a social engineering pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/479516143/how-to-get-minecraft-for-free-on-android-device-game-hack PDF link annotation
    • http://e-library.akademitelkom.ac.id/repository/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/free-spins-coin-master-october-17-2021_GM406889139.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/roblox-sexually-abused_GM431946152.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/www-rubux_GM431946152.pdfIn PDF document text
    • http://e-library.akademitelkom.ac.id/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.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_003_off00004c6d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C6D 24780 bytes
SHA-256: b7c3ee69227c38de01721763e354a2adb76e32fbc126f2aa3436d4f08df2ef38
font_01_sfnt_off00008434.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8434 18332 bytes
SHA-256: f1b1885292fe7804ab1139a421bc8971dcdb5c33ccbea204e48355468ca4790a

Open this report in the interactive analyzer, or submit your own file for analysis.