Malicious PDF — malware analysis report

Static analysis result for SHA-256 db30fc6df4965a93…

MALICIOUS

PDF

45.6 KB Created: 2021-05-19 23:36:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d72b061eeefc59eb043b571c25f1c2b8 SHA-1: d5cabdd5526eacf83b7fcd26c8ccea00551af8ef SHA-256: db30fc6df4965a93747b8b90a87597cc918132d494b95812992bc6be4f2bc423
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and free in-game currency, such as 'free-minecraft-survival-server-game-hack'. These links are flagged as malicious redirectors. The document body and embedded URLs suggest a lure for users interested in popular games, aiming to redirect them to potentially harmful content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/479516143/free-minecraft-survival-server-game-hack In PDF document text
    • http://tehergumi.hu/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://tehergumi.hu/images/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://tehergumi.hu/images/coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://tehergumi.hu/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://tehergumi.hu/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://tehergumi.hu/images/free-robux-co_GM431946152.pdfIn PDF document text
    • http://tehergumi.hu/images/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • http://tehergumi.hu/images/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://tehergumi.hu/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://tehergumi.hu/images/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://tehergumi.hu/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://tehergumi.hu/images/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://tehergumi.hu/images/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://tehergumi.hu/images/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://tehergumi.hu/images/woman-roblox_GM431946152.pdfIn PDF document text
    • http://tehergumi.hu/images/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://tehergumi.hu/images/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • http://tehergumi.hu/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://tehergumi.hu/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://tehergumi.hu/images/coin-master-free-spins-ios-2021_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cbf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CBF 26908 bytes
SHA-256: 15c20157798da27f438fd6eb30566425d10c0279ec7fd7058ca07df0d300d560
font_01_sfnt_off00008781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8781 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00009133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9133 17896 bytes
SHA-256: a416ee995e2fcdad104e8f08570a8c057a7877f0093c65a8eab662d227b30cb8

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