Malicious PDF — malware analysis report

Static analysis result for SHA-256 023f16c9b9bd8844…

MALICIOUS

PDF

41.5 KB Created: 2021-05-11 13:38:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e3d47d1e0fe1b0da805ae0ea621ea796 SHA-1: 6b8be5b31081d6935bf19c36383a76614e295480 SHA-256: 023f16c9b9bd8844c0bd18b0578cb222d79c4fb9a869c3d638c713a2fc459f20
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links and a visual download button, directing users to external URLs that are flagged as malicious redirectors. The document body, though partially corrupted, suggests a lure related to game hacks, further supporting a malicious intent to trick users into downloading potentially harmful software. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/hack-coin-master-apk-3.3-game-hack In PDF document text
    • http://library.apsidoarjo.ac.id//repository/daily-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-free-executor_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/get-more-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-report-hacker_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_off0000488c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x488C 24364 bytes
SHA-256: 9ec39f007eac77b7ee6b77f0f6e1ac92f21c3c12a8e2771f6de2f4e3917811ba
font_01_sfnt_off0000804c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x804C 18132 bytes
SHA-256: 8394b5af02312d864298b83d4844c734f19ebfd31514e1fde380aa35c4903e0f