Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a3992c13800b8ca…

MALICIOUS

PDF

34.9 KB Created: 2021-06-19 13:00:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5487df1ede17ffdfc7c09168b0314f1a SHA-1: ad534695bb1567884fe876143b3d7127827f6abe SHA-256: 8a3992c13800b8cae06b38e70ebfb10b9c329baca956ac2bd2c75f2872868574
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious sites. No scripts were extracted, but the primary attack vector appears to be the embedded malicious links.

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/online-robux-hacks-game-hack In PDF document text
    • https://schneider-und-berger.de/images/roblox-arsenal-hacks-free_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/free-robux-no-verification-android_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • https://schneider-und-berger.de/images/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • https://schneider-und-berger.de/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://schneider-und-berger.de/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
    • https://schneider-und-berger.de/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://schneider-und-berger.de/images/roblox-hack-version-free-download_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/game-toolbox_GM479516143.pdfIn PDF document text
    • https://schneider-und-berger.de/images/free-robux-app_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://schneider-und-berger.de/images/booga-booga-roblox-hack-code_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4C 23688 bytes
SHA-256: 00df6c2cf6743ce99fd9db712e3c1961bbba6bdc4b99f05ef9a4af4afc380200
font_01_sfnt_off000063e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E0 18916 bytes
SHA-256: 9f34d4b98863a307f9da335cf1fd34ec952d60c0429fd924ac18f9f4634026bf

Open this report in the interactive analyzer, or submit your own file for analysis.