Malicious PDF — malware analysis report

Static analysis result for SHA-256 3318f9494cf219b6…

MALICIOUS

PDF

33.5 KB Created: 2021-06-18 21:45:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 521cf9b8eb27e22061beb8eef2d5d248 SHA-1: bf7392efea7420cbd46eeffa4c68a6540241b1f4 SHA-256: 3318f9494cf219b6b984cb8161a06cc61459c87c2925c82e3e275f5f040fa30a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to trick users into clicking malicious links. The embedded URLs, such as http://netcdn.co/app/431946152/roblox-catalog-free-robux-game-hack, are flagged as malicious redirectors. The document body contains further links to potentially malicious PDF files hosted on svadba-moda.kg, suggesting a chain of redirection or phishing attempts.

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/roblox-catalog-free-robux-game-hack In PDF document text
    • http://svadba-moda.kg/images/free-hair-on-roblox-promo-code_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-play-as-guest-free-unblocked_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-jailbreak-how-to-get-free-skins_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-robux-not-a-scam-or-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-roblox-exploits-for-ipad_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-galaxy-cheats_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/how-do-you-get-free-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-apk-free-download-pc_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-free-items-obby_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-free-boy-face_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://svadba-moda.kg/images/cheats-for-big-paintball-roblox_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/roblox-cb-ro-hack-script_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/granny-roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://svadba-moda.kg/images/hack-robux-site-robloxcom_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_off00002ea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA9 21692 bytes
SHA-256: b1a0b3741420324e605b79131c409e8f5c7dc0d4637ff7795adb489e47bacfb0
font_01_sfnt_off00005e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7F 18744 bytes
SHA-256: 786a7d10231ff098b761e5c91932d1443ff13852941d88fbef126ae455fe010d

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