Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d341eb3bb072756…

MALICIOUS

PDF

40.7 KB Created: 2020-08-10 05:38:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 865163a46e02f1251439d31ce22897ef SHA-1: adaeb5dd2b417b2d2674c7454b811698e6b2e618 SHA-256: 7d341eb3bb072756978466a2e27eaae3e0f267c97431eafea3aae31189eef8ac
194 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.com) disguised as a free book download. The ML classifier strongly indicates maliciousness, and the presence of numerous SEO-optimized PDF links suggests a link farm used for phishing or malware distribution. The embedded URLs likely lead to a second-stage payload or phishing page.

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=seeing+is+believing+book+pdf In PDF document text
    • http://files.ashlandcountytowninsurance.com/uploads/1/3/0/8/130873851/3588413.pdfIn PDF document text
    • http://files.living-practically.com/uploads/1/3/0/7/130738974/475136.pdfIn PDF document text
    • http://files.ccdtc.org/uploads/1/3/1/6/131607029/6760730.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/1/0433/5819/1768/files/viwisigosogakiwexisewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/60493070242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/95509007145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8414/5049/files/heroic_kil_jaeden_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/nipowirolusogapekirim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7772/9432/files/memedamenil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7836/0987/files/pibusezesepodorugovebute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/48234165952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7013/files/lodukikoxewisel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54101174921.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: ashlandcountytowninsurance.com 4 samples

Related samples 6

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_off0000621e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621E 5268 bytes
SHA-256: 76702e3f272d95a1cfb2b23d135412362090795cf2bf9e50bd1ef150fd7bf44e
font_01_sfnt_off0000742a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x742A 10012 bytes
SHA-256: 0ffb5623d90d40682d5c6dafa0c96ab21b143fa0874ef9dad5a920021b2de92c

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