Malicious PDF — malware analysis report

Static analysis result for SHA-256 b59aad927d29823c…

MALICIOUS

PDF

33.8 KB Created: 2021-06-28 06:43:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 20ba16397efbd1c66685c6d5190a66bc SHA-1: e29acdbdea36ff2b2c3c345346cb20a78e0e7eb9 SHA-256: b59aad927d29823c63c7b4d1fbcb2c6aee943c191098bacd24efe8d42b254400
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to what appears to be a game hack lure, specifically targeting Roblox users. The primary link, http://netcdn.co/app/431946152/how-to-hack-in-roblox-on-game-hack, is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to redirect users to potentially malicious content or downloads, aligning with spearphishing attachment techniques.

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/how-to-hack-in-roblox-on-game-hack In PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/hack-for-vehicle-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/roblox-skywars-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-steal-people-stuff-in-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-free-admin-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-builders-club-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-on-a-roblox-game-for-free_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-free-robux-by-robux-king_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/install-coin-master_GM406889139.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE6 21960 bytes
SHA-256: 7a58da9ed4bd1af05d8bfeab6c3d9edfe486296247f1b922fe28d1079552b3ed
font_01_sfnt_off00005fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA2 18820 bytes
SHA-256: 24c782f7960ebfa08fcdaa9b2732836aed120295aeb0acf2ae34a6239aad8942

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