Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dae99b81dc7478d…

MALICIOUS

PDF

35.3 KB Created: 2021-06-30 02:56:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d8deae6b2499e84b296a79f6a84ba1d9 SHA-1: 6bfdb96dfd3f29a49a0976c496985118103fc420 SHA-256: 1dae99b81dc7478ddde00b9415ff214620479abefd688221a308739d143e576e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to 'Robux Hack' and 'game hack' generators, directing users to a known malicious redirector. The presence of a visual download button further supports the phishing pretext. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing attempt designed to redirect users to potentially harmful content.

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/robux-hack-no-download-or-survey-2021-game-hack In PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/comment-cheater-sur-roblox-franais-sur-jailbreak-levels-airdrops_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-hack-jailbreak-roblox-noclip_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/i-just-got-free-robux-from-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/denis-free-robux-app_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-gfx-free-render_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/arsenal-roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/is-roblox-free-on-the-computer_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/naruto-rpg-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/exploit-hack-roblox-synpase-free-download_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-arsenal-hacks-free_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-rocitizens-hack-money_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/mistplay-robux_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_off0000301e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x301E 22292 bytes
SHA-256: d4cabde0c0fc21206463bece4adfb73f0853d96ba1a206be2d21ffe1a6c20cdc
font_01_sfnt_off000061d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D4 19996 bytes
SHA-256: 333cf9dfbdc08f7eaafeaa5ab30743268444f60d70f706a531f4c3e9c6e460b9

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