Malicious PDF — malware analysis report

Static analysis result for SHA-256 3388687306b7c8ca…

MALICIOUS

PDF

50.3 KB Created: 2021-05-13 12:30:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3d4e9dba8fb609b5cc5920d3f98d937e SHA-1: c169375f671b2cbb0d33d5c96a6881ec27972c7a SHA-256: 3388687306b7c8cae72b78ae74058881aee31bf9d6806107450e8445f20586ce
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirector infrastructure, specifically promoting "free Robux" and "game hacks" as a lure. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites. No scripts were extracted, but the presence of multiple malicious links and the ML classifier output indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8594

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/431946152/free-robux-no-generator-game-hack In PDF document text
    • http://www.sitiamministrabili.it/images/coin-master-hack-without-verify_GM406889139.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/coin-master-free-chip_GM406889139.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/coin-master-free-spin-app-2021_GM406889139.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/robux-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/free-800-robux_GM431946152.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/minecraft-free-download-android-apk-014-0_GM479516143.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a85.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A85 25896 bytes
SHA-256: 7acdf06e6296a9e10f838d365d568efd93032a4f2ba4f39b9bb1e809ea103a2b
font_01_sfnt_off0000877f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x877F 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off0000918a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x918A 6636 bytes
SHA-256: 62075f0fe13502d46afb6e55e83d440c29ef4988399537df1f86e7653ce3b744
font_03_sfnt_off0000a196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA196 18344 bytes
SHA-256: d0a2580a9848789708f711aeedd4c44eef26827bf748da476089155bc80243e8

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