Malicious PDF — malware analysis report

Static analysis result for SHA-256 888a3b9ac4d20ef5…

MALICIOUS

PDF

44.4 KB Created: 2021-05-12 18:10:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fae94a3504d9ef828152eb523b51c481 SHA-1: 310b58fe4d50854c2ea4de8b348c9ab934bdb7d7 SHA-256: 888a3b9ac4d20ef5650ad7f216d05890a4ca5fca6f05aa0168c35b2fc15a5019
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a direct link to a known malicious redirector, which is a strong indicator of malicious intent. The document body and embedded links suggest a lure related to game cheats or virtual currency, aiming to trick users into visiting the malicious site. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/legit-coin-master-hack-site-zyngaplayerforums.com-game-hack In PDF document text
    • http://hakuna.co.za/images/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://hakuna.co.za/images/robux_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://hakuna.co.za/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/free-coin-master-app_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/www-rubux_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://hakuna.co.za/images/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://hakuna.co.za/images/coinmaster-fan-page_GM406889139.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_off00004bee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BEE 26424 bytes
SHA-256: 3f93f0be36fe35cb8c9eff076ad53592e148b8b666c25243cea0197a1605c906
font_01_sfnt_off00008912.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8912 18996 bytes
SHA-256: c7201ec4c3a8de5860eeb2e6c9e6c90ee147184e9a3338a06e2bc3af5219e027

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