Malicious PDF — malware analysis report

Static analysis result for SHA-256 034ca9fd8d61acc3…

MALICIOUS

PDF

41.2 KB Created: 2020-08-05 23:24:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ca2841c23003d9019188e6744a1c45a0 SHA-1: 6013f1e908d9af93b8cb513142ebc744f893fd64 SHA-256: 034ca9fd8d61acc362d8bce30a2dc6c0e3fbaddc136feb8c011532b392eb11c0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, suggesting an attempt to drive traffic to malicious sites. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics as a malicious redirector. This indicates a likely phishing or scam attempt disguised as a document download.

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=letter+writing+format+in+english+formal+and+informal+pdf In PDF document text
    • http://files.allsortspreschool.com/uploads/1/3/1/6/131637498/1799845.pdfIn PDF document text
    • http://xiziki.cs.ogdcl-nthp.com/uploads/1/3/1/3/131398091/kamagiveke_golukazakiwazom_lasewaxitipe.pdfIn PDF document text
    • http://files.atlanticcirqueagency.com/uploads/1/3/1/8/131871692/212501286c259.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/1/0430/7927/0549/files/granblue_unite_and_fight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5393/0901/files/nationalism_theory_ideology_history.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1070/9915/files/tire_size_conversion_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54341666742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/ladizimudelaxugudot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4227/5479/files/wefazumiwonesox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/71211125732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3724/6118/files/rajukitasufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3630/3782/files/kedakexewamejavujujev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/nolepofidefijajatokopen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3550/9415/files/92101915578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/2619/0234/files/telecharger_alter_ego_b1_gratuit.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 2

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_off000062c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C4 5488 bytes
SHA-256: 816f10757c5eeb811574b7109ba1cdbc0ec389022abed50a577dada7630f54a0
font_01_sfnt_off0000755c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x755C 10060 bytes
SHA-256: 0c4232e63b7b2c070bb816c1e7a9905f0ac59bb2367c34311143711673eeb048

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