Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b3d76b9b212fab4…

MALICIOUS

PDF

37.0 KB Created: 2021-06-27 08:19:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 49700800779dae4079f657735aa7410d SHA-1: 9ccf50ca2b7189bfdaa4fde41031ed63d738fb43 SHA-256: 0b3d76b9b212fab47f79038d55853d3f7965fce06c62d94ca12930761eb948df
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'robux generators'. The heuristic firings indicate that these links are designed as lures to trick users into visiting potentially harmful sites. While no scripts were extracted, the presence of malicious redirector links and the overall lure suggest an attempt to lead the user to a malicious download or exploit site.

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/hack-robux-2021-android-game-hack In PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/cheats-for-money-for-roblox_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/roblox-jailbreak-outwitt-hacks_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/robux-pin-free-no-verification_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/pastebin-hack-robux_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/hack-roblox-phantom-forces-2021_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/how-to-get-free-stuff-in-the-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/roblox-robux-hack-online-no-download_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/roblox-hacked-client-esp_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/roblox-jailbreak-cheater-cage_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/how-to-hack-into-other-peoples-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/people-hacking-roblox_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/roblox-bc-free-codes-2021_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/free-to-play-roblox-like-game_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/how-to-get-shirts-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/get-free-robux-by-inspect_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/roblox-decal-id-free_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/best-free-minecraft-server-hosting_GM479516143.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_off0000363d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x363D 23160 bytes
SHA-256: ad45d76aab1d2fd0456b7de73d6c5571229bfd0abc8b50367f24d94498ec3d14
font_01_sfnt_off00006a64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A64 19416 bytes
SHA-256: a059f091779ebccf431bd0a29e724555321bd593556a6fed501fd7be553ca694

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