Malicious PDF — malware analysis report

Static analysis result for SHA-256 08ab4e10885905fa…

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 18:45:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8c25c9a03f46cde51ae0542231efd296 SHA-1: 1051c357f5ba122da007c95313728d7db37b9648 SHA-256: 08ab4e10885905fa2f91cfd8b637ea27eb828349068697ad990b4f925441dff4
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on domains associated with link farms and SEO manipulation. The primary lure appears to be 'game hacks' for popular titles like Coin Master and Roblox, suggesting a social engineering tactic to drive traffic to potentially malicious sites. While no scripts were extracted, the PDF structure and embedded URLs strongly indicate a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.tw/app/406889139/coin-master-free-pet-food-game-hack PDF link annotation
    • http://pustaka1.unindra.id/repository/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/roblox-walkspeed-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/can-i-have-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-spins-coin-master-2021_GM406889139.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_off000033b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33B0 22812 bytes
SHA-256: eed8c50962a882f7fc340222a86189e5bea1e77d75e6f565c0b935f1c37fe7f7
font_01_sfnt_off000066ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66EA 18324 bytes
SHA-256: 10ce9c6a1e11ec0ca6b3660bcfd00cfe2a094fed43490c9d06fb1f9b5d2d4740

Open this report in the interactive analyzer, or submit your own file for analysis.