Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd348fab114bd6f7…

MALICIOUS

PDF

57.3 KB Created: 2020-08-21 17:27:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46f9aa4076a2b4927fb3cfd43f09c492 SHA-1: df552e9f80eb9b0e8256d93bf1d8cc7ee40e53d8 SHA-256: dd348fab114bd6f78c1a546b0543a50c61aa36ee6754bfefb107c953bfae251b
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a heuristic identifying it as a PDF link farm. One of the primary links directs to a known malicious redirector service (ttraff.com), suggesting an attempt to obscure malicious destinations. The document body itself is heavily obfuscated and contains the same redirector URL, reinforcing the malicious intent.

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=tipicidade+formal+material In PDF document text
    • http://jelonow.highergroundbackpacking.com/uploads/1/3/1/4/131407226/rubituxeguwulo.pdfIn PDF document text
    • http://files.donnablifecoach.com/uploads/1/3/1/3/131381363/virepaguwez.pdfIn PDF document text
    • http://mebujule.newbornschoolhouse.org/uploads/1/3/1/4/131453215/5851f4155d.pdfIn PDF document text
    • http://zekokif.goldenreiki.co.nz/uploads/1/3/1/4/131438304/dorebevofejinezeg.pdfIn PDF document text
    • http://files.neuroactiveexercise.com/uploads/1/3/1/4/131413550/d2814f.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/1/0437/8935/3118/files/lolovuxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3171/9070/files/canned_fish_processing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5312/files/nipetuweso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2388/2650/files/zip_to_lat_long.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3785/9735/files/accounting_golden_rules_with_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9436/8663/files/vabani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8212/0357/files/mechanism_of_insulin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/50392879365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2011/5358/files/grammar_practice_workbook_grade_9_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/50927838848.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_off0000a1ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1ED 5072 bytes
SHA-256: 8f776ca229e24fbc97815efda994dd0d60e9060cbbadc58ac4bf305514c46274
font_01_sfnt_off0000b312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB312 10924 bytes
SHA-256: f93d086f0bf72984a4934008381fe0296cf796c9297d535d2c6f55560d886b2a

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