Malicious PDF — malware analysis report

Static analysis result for SHA-256 18d01e49cd5c5029…

MALICIOUS

PDF

41.8 KB Created: 2020-08-19 14:56:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e2eacab928b57ac27b808a0337f9298 SHA-1: 6362d97783bd9d03c898d6d23885e252db479390 SHA-256: 18d01e49cd5c5029f9093181c1febbcba305cfe222fac6db7107b8550d37c5cf
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to redirector infrastructure like 'ttraff.ru', suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious. The embedded content, though heavily obfuscated, includes a URL that appears to be part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.ru/pify?keyword=couple+goals+video+status In PDF document text
    • http://files.jlkbodybutters.com/uploads/1/3/1/4/131408100/3e1a580b7448.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/58495455285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5500/3286/files/kemed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2950/3908/files/17312101136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2814/2501/files/resakud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8570/8968/files/kuditexokegegekejuganu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0842/6147/files/79959205834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5666/8573/files/17345474347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1227/5870/files/13568448210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7665/7051/files/13109617697.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: astrologervaranasi.com 4 samples

Related samples 1

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_off00006815.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6815 4996 bytes
SHA-256: 0bf513c8c12dc85fae00e531172780a78f7ef53ebbe133ffc6ba3904bac3c886
font_01_sfnt_off00007932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7932 9880 bytes
SHA-256: 6d94357f0b82f14cba9889f806a09697beaeb1203b1d35f51fa7ff16ffc34617

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