Malicious PDF — malware analysis report

Static analysis result for SHA-256 be934fbdc4f5e16d…

MALICIOUS

PDF

46.9 KB Created: 2021-06-13 22:48:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 25ff0d12dbb2f611ad8cdb59cab8773d SHA-1: e0d2e5049b33a85fee5802b7efcbbdea74fc918e SHA-256: be934fbdc4f5e16d7d90bb2f0f5b6fe49f41a1f85dc47804f6f74293df38cd7e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external URLs, including one identified as a malicious redirector. The document body and heuristic firings indicate a lure related to 'game hacks' and 'free generators', suggesting the intent is to trick users into visiting these malicious sites. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure strongly suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/roblox-vampire-hunters-2-going-through-walls-hack-game-hack In PDF document text
    • https://schulzpressetext.de/images/free-robux-limiteds-comlu-com_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-game-code_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-500-tiktok-views_GM835599320.pdfIn PDF document text
    • https://schulzpressetext.de/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-4-tiktokcom_GM835599320.pdfIn PDF document text
    • https://schulzpressetext.de/images/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-hakc_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-obby-youtube_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-dyna-roblox-dinosaur-simulator-coddes_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/rollercoaster-tycoon-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/earn-robux-websites_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/how-to-hack-a-roblox-account-easy-2021_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/roblox-bee-swarm-simulator-hack_GM431946152.pdfIn PDF document text
    • http://wolfzscriptsIn 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_off00004ad3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD3 25516 bytes
SHA-256: a8b56b0b3da227fa5bd54c1a47b31f571cfc8c08c0fa7588cd538869da144260
font_01_sfnt_off0000867b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x867B 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off0000902c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x902C 19892 bytes
SHA-256: 531c87a0663fd3d90835521ddc83d2bf6ce20d3c3a415ee565766d538bf5c198

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