Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e27dc9b9777512e…

MALICIOUS

PDF

41.7 KB Created: 2021-05-13 01:44:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 314cf685711e9a97d450a402a116473e SHA-1: 41f658c06f2bd39cfc3070aec13207d0cfcb8903 SHA-256: 5e27dc9b9777512e1f4ba722f4818869ce861cd841a1b07009f76f47639ee310
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, disguised as 'game hacks' and 'free generators'. The document body, though partially corrupted, also contains similar lure text and URLs. These findings strongly suggest the document's purpose is to redirect users to potentially malicious sites for further exploitation or phishing. No scripts were extracted, limiting the analysis to the document's embedded links and structure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/hack-coin-master-for-android-game-hack In PDF document text
    • http://loriginedupain.org/images/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/free-limiteds-roblox_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/free-spin-coin_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/free-coins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/generator-robux_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-free-spins-and-coins-blogspot_GM406889139.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_off000048fe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48FE 25244 bytes
SHA-256: 6824c096ffbd9c799e104d54912a77ca426ce2c00af1185af3c2a6b48a1105a5
font_01_sfnt_off00008156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8156 18056 bytes
SHA-256: c73b8889e83ea4d6a092d9b03df5077e8a4a9cdf5eba30ec15891723340a0869

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