Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf1ae9792c859d90…

MALICIOUS

PDF

35.1 KB Created: 2021-06-18 02:18:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2868fcacd94cfa0db91c0805a6367cc9 SHA-1: ad31396c62b84148a258c70af0793726e0a4fa34 SHA-256: bf1ae9792c859d909a2846d6ec9269c9457aa60156da6dbe8bfed497f3cbe07f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of free game hacks and currency. 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 malicious links and the ML classifier's high confidence score indicate a high likelihood of malicious intent.

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/how-to-download-roblox-on-ps4-for-free-game-hack In PDF document text
    • http://reisebild.eu/images/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/roblox-planet-hack_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/roblox-walk-through-walls-hack_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/is-coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/roblox-easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/hack-version-of-coin-master-apk-download_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000321e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x321E 22356 bytes
SHA-256: 685f428166f0fc9fbe923d0cec3dc3925d97b58e839d166ae1af95587994d692
font_01_sfnt_off000063b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B8 19188 bytes
SHA-256: 298fcb6726f66ebbe3edb16a97dc9b3880c45b4a42a05b789ebc81f3757006bb

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