Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a6b6bb02b730687…

MALICIOUS

PDF

34.3 KB Created: 2021-06-18 05:00:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: aeb309ef9515571733c6182b69e24315 SHA-1: 402de6d1bb586b3a53628eb915fbe576f0cc746d SHA-256: 7a6b6bb02b730687a68a1d8e159043c28950cef82ddae6204b7c3a3bd3941df4
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a 'game hack' lure to entice users into clicking malicious links. The document body and heuristics indicate a redirection to scam websites or potential malware downloads, as evidenced by the numerous embedded URLs pointing to 'free robux' and 'game hack' related content. The ML classifier strongly flagged this PDF as malicious, suggesting it is designed to exploit user interest in popular games for malicious purposes.

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.co/app/431946152/roblox-hack-pets-simulator-game-hack PDF link annotation
    • http://www.taxiaparis.fr/images/big-booga-dig-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/free-roblox-hacks-like-jjsploits_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/free-demon-slayer-anime-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/free-roblox-recorder_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/how-to-get-something-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/how-to-get-the-rarest-item-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/coin-master-hack-org_GM406889139.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/minecraft-windows-10-edition-free-with-java_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_off00002ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC2 22344 bytes
SHA-256: 651748c8861afd4bc157fdfd248168f94bad096f2b577de9690d37cecdb1128d
font_01_sfnt_off000060b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B3 19248 bytes
SHA-256: 09cf7b72f79c5dfecca824fcf024bf258da164842024e574fdbc019ccace334e

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