Malicious PDF — malware analysis report

Static analysis result for SHA-256 653edd233a14093f…

MALICIOUS

PDF

49.3 KB Created: 2020-07-28 20:13:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 778341631f0312ee1a1096800c050eac SHA-1: bd5cdda2dfd8c60fc0b7136502c313fb28829944 SHA-256: 653edd233a14093fdbb2ab7c802e1fb72cbf33a98d8661d46a68bd6ea8df6b2c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple links pointing to redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=affidavit+of+loss+id+template`, which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to an 'affidavit of loss ID template'. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious destination. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=affidavit+of+loss+id+template In PDF document text
    • http://files.laurabrayresearch.org/uploads/1/3/1/0/131070230/fd16daa5ad5.pdfIn PDF document text
    • http://files.jeebdesignfishers.com/uploads/1/3/0/7/130775987/puwafej.pdfIn PDF document text
    • http://files.detailersdirect.co.uk/uploads/1/3/1/3/131380767/1359545.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/1/0429/3407/5558/files/58017697418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/koribowaguzipemesebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0372/2398/files/wivonelinujevopodozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0147/9321/files/13932775200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9550/7622/files/85182592922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/dudibaduxidonof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vazakiliduvapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/66335112233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6680/9765/files/xukazifarujibasovugele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6961/1930/files/26645584032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3106/8823/files/sifowazen.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 8

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_off000084e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E1 4820 bytes
SHA-256: ec26523c12993e78968d4f8825a2e5896f9ab0bcafb7e69f93f8429995366e75
font_01_sfnt_off00009555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9555 10172 bytes
SHA-256: 76a2e8a4fab3ee9fa738b3f3e88ad0a41fadfa5b67a1e1f8107de28be5b240f5

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