Malicious PDF — malware analysis report

Static analysis result for SHA-256 de0d23af01aebc57…

MALICIOUS

PDF

35.1 KB Created: 2021-06-19 14:20:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e4858b98af89958e9a12736393dd3dce SHA-1: a44b5c7c58c6d46ea65b72238e1a7f7e5dd2bd3a SHA-256: de0d23af01aebc57398bbc8c7a81c51b7ee886dbe5f18489945f33ac7454f218
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, disguised as game hacks and generators. The document body and embedded URLs strongly suggest a lure for users seeking in-game currency or cheats, leading them to potentially malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/exploit-roblox-hack-game-hack In PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/how-to-farm-money-in-boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/how-to-get-your-hacked-account-back-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/how-to-hack-roblox-high-school-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/online-free-roblox-games_GM431946152.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/how-to-get-free-clothes-on-roblox-easy_GM431946152.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/free-spins-coin-master-march-2021_GM406889139.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/coin-master-games-download-free_GM406889139.pdfIn PDF document text
    • https://www.ugericabs.com/uploaded_files/userfiles/files/free-printable-roblox-coloring-pages_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32FC 22144 bytes
SHA-256: 4dfd0cc9e879b0c2364d268a9637ce527d83763dc8ae1737bc8a45e3bcf8db5a
font_01_sfnt_off000063e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E5 19056 bytes
SHA-256: dcccc87bf1c0fb006cd15badc0aede3a7d302f78b77df8fb1302d693d4d7dbc9

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