Malicious PDF — malware analysis report

Static analysis result for SHA-256 edace0f717c9c8ec…

MALICIOUS

PDF

50.6 KB Created: 2021-01-08 14:02:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 3f7314e4f4ca6a96e505da1d39969bbd SHA-1: 8dc87c6302291af24ad7a8d85db2901cbde74cb5 SHA-256: edace0f717c9c8ec7aa7ac2f1061ea99a50f419bf4fa01e8a5ba3728108cc010
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains multiple heuristics indicating it is designed for phishing and SEO link farming. It embeds a URL that redirects to a potential malware download or phishing page, disguised as a song download. The PDF structure and embedded links suggest a malicious intent to redirect users to external, untrusted resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7962

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://traffnew.ru/aws?utm_term=all+of+me+mp4+song PDF link annotation
    • https://debasomi.weebly.com/uploads/1/3/0/7/130739769/8244177.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416789/normal_5f9b3d6b48a91.pdfIn PDF document text
    • https://tuxonojetivap.weebly.com/uploads/1/3/4/4/134437157/tojalaxopomas_gimaguvanobifog_jutububopot.pdfIn PDF document text
    • https://kifofudodor.weebly.com/uploads/1/3/4/8/134878181/4fd4c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376857/normal_5fd1c983ca6a3.pdfIn PDF document text
    • https://cdn.sqhk.co/dimusokobab/igBMVxc/65582658725.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393033/normal_5fe2f739006e8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402486/normal_5fc7e6ca018f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383912/normal_5fa5c76c16538.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366371/normal_5f8834382a4c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405662/normal_5fb261c0085ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410211/normal_5f977c639cb4a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451210/normal_5fb2a5823564e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421471/normal_5fac4e1a593c4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b3a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3A4 4992 bytes
SHA-256: bc0f73ee74ea0e54a3a8deab608b31a76e2c8b0bab8c35e3ad45a75eec4f8620