Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6923fd3ee440749…

MALICIOUS

PDF

46.5 KB Created: 2020-08-09 16:43:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aed7ddfa0c3b3171909050f608da1228 SHA-1: a71415041ca6dc9c59e627ecd26ee600d522fcbd SHA-256: f6923fd3ee440749cd85927f1b87baa4568d086a8e5aa75ad205afe473d8f128
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, many pointing to Shopify domains, but one critical link directs to 'ttraff.com', identified as a malicious redirector. This suggests a tactic of SEO poisoning or a phishing lure, aiming to redirect users to malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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.com/pify?keyword=barbara+cartland+libros+pdf In PDF document text
    • http://pituroner.themidnightstroll.com/uploads/1/3/0/7/130776485/d5ad9e5276b.pdfIn PDF document text
    • http://files.dkgalphaalpha.org/uploads/1/3/0/8/130814246/lejesazezuloxeg.pdfIn PDF document text
    • http://files.embracingspirit.net/uploads/1/3/0/7/130740221/mirinuv_kagawulif.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/1/0435/4700/0983/files/77748427494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6646/6202/files/alfa_romeo_giulia_quadrifoglio_brochure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/ziguwid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/56577209009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7742/5559/files/71510197533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5544/7202/files/murolipodusesariwifosixum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/6635/3814/files/45775902903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7273/1801/files/avian_pathology_atlas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/tivajakarivew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3401/0015/files/40922058102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9702/1861/files/43528999209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/xupogomuzozogegafija.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

Related samples 7

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_off000077a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A1 5336 bytes
SHA-256: fa0c9b12790f0d8011020867826ad370b6ece532e2db1ad55bfd3dc8f4541c9b
font_01_sfnt_off000089ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89CE 10464 bytes
SHA-256: ae2c82dd79ca7e6b869f42907a678166205e32891231bc66e7e0108fdfedfae3

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