Malicious PDF — malware analysis report

Static analysis result for SHA-256 088d69c56414c3fa…

MALICIOUS

PDF

36.3 KB Created: 2021-06-19 21:13:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c51ef3e034d257a26e5d75f5e58b1491 SHA-1: a0e1611172d1cec87a5dfcad2958950e9380fc2e SHA-256: 088d69c56414c3fad61dc2a93ef46118599f8342c62bb3ffae8143aafa9e7bde
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of game hacks and free in-game items to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts further PDF documents, suggesting a chain of malicious redirection and potentially further exploitation. The ML classifier strongly indicates maliciousness, and the presence of multiple embedded URLs reinforces the phishing and redirection attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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 http://netcdn.co/app/431946152/roblox-hack-how-to-use-infinite-jump-we-are-devs-game-hack In PDF document text
    • https://anlathich.com/public/upload/files/free-dominus-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-spins-and-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/coin-master-free-spin-link-twitter_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-spins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-earn-free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/7-year-old-roblox_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/roblox-hack-blood-of-iron_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/roblox-hack-minecraft_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/roblox-hacks-not-resonding_GM431946152.pdfIn PDF document text
    • https://anlathich.com/public/upload/files/roblox-hack-cheat-engine-2021_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_002_off00003157.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3157 23104 bytes
SHA-256: cbe996a4d95d463a7840bec80c8859d676ef23bd9a71d51999f7e542d0a6b364
font_01_sfnt_off0000655f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655F 20268 bytes
SHA-256: 3de11006736b74e21f67f3fa6cad78ea1fc3b76b4ea7e12686f7cab793caf880

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