Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b62303a985df775…

MALICIOUS

PDF

47.2 KB Created: 2020-08-20 18:10:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9da3594f8d0cdd9bb3710d42b123e42 SHA-1: 6f992b82161ca90afb126502b942f4a9cb15d0a0 SHA-256: 6b62303a985df775309d1952636756678bc7e517ed6c939f0da74c29932e35e2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple links pointing to redirector infrastructure, specifically `ttraff.com`, which is flagged as malicious. The document body and heuristics indicate a lure for a 'case conceptualization template' to disguise a phishing attempt. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests an attempt to drive traffic to malicious sites.

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=case+conceptualization+template+cbt In PDF document text
    • http://files.brendargarcia.com/uploads/1/3/1/1/131163976/6670643.pdfIn PDF document text
    • http://files.sorrowfulmother.net/uploads/1/3/2/6/132680822/ab2206.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/1/0433/2437/5194/files/dapidomeroxaboxewukepaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5646/3014/files/63955472399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3459/0878/files/62946218009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2156/5078/files/lonagobovuvuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9174/5175/files/60522862880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/banen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4490/5884/files/error_permission_denied_dir_s_mkdir_usr_local_frameworks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5238/1846/files/zisaruwijur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5004/1495/files/angela_carter_the_magic_toyshop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2896/3747/files/bikisogeperakevekerusotot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5504/6037/files/associativismo_e_organizaes_voluntrias.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1639/6695/files/zuwigibifete.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: sorrowfulmother.net 3 samples

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_off00007cb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB8 5076 bytes
SHA-256: d7189f6743c97cd3f1225f16edd5e87de6c12f9de1fefce3f181ef2b30828994
font_01_sfnt_off00008de7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE7 10076 bytes
SHA-256: 132f6da913b2a3cf12489715067eba7eff38ac7e41c98d3f29be129f682174d7

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