Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e3e3dbdfe598e6d…

MALICIOUS

PDF

45.1 KB Created: 2021-05-13 08:45:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1524563ba2d0ce7a81f9f46f675a3a0b SHA-1: c7401a810313a5757cc87e746830b5beb39b1c55 SHA-256: 6e3e3dbdfe598e6d123ba5ba06f795b641eebc0f1e4837c71e5092a09c76f88c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites offering 'free generators' and 'game hacks' for popular games, which is a common lure for phishing or malware distribution. The heuristic firings confirm these links point to known malicious redirectors and a general ML classifier flagged the document as malicious. While no scripts were explicitly extracted, the PDF structure itself contains embedded URLs that are designed to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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/coin-master-free-spins-no-human-verification-game-hack In PDF document text
    • https://schulzpressetext.de/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/roblox-executor-free_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/minecraft-wurst_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-images_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/coin-master-spins_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/minecraft-pe_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/how-do-u-get-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048d2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48D2 25352 bytes
SHA-256: 7fea3ac7784855d06c0a1efa7b170eca64623fc57a40b4a1dc7edf1864a837cf
font_01_sfnt_off00008371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8371 2868 bytes
SHA-256: d2d857e2ddc1082c7667b23f2135a5c0ba26a2ff8b42c86c89c8e0b09aece855
font_02_sfnt_off00008d5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D5C 18420 bytes
SHA-256: bda9d64311803d8ca1e60170c3ec5fa1333a71d10f10bc88962b6478ba2902e6

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