Malicious PDF — malware analysis report

Static analysis result for SHA-256 43201cba3239132a…

MALICIOUS

PDF

42.7 KB Created: 2020-08-06 22:25:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cdde4a92bd3fa5b21a3698972c79534e SHA-1: d1a5ecd238f1064a47359fe7b85793adc9518112 SHA-256: 43201cba3239132aae5ce894430a2b86f5cee905ddaa5931205d5deea021da91
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains multiple embedded links. One of these links, https://ttraff.com/pify?keyword=auditoria+ambiental+de+una+empresa+pdf, points to a known malicious redirector. The document body and embedded links suggest a link farm or SEO poisoning tactic 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=auditoria+ambiental+de+una+empresa+pdf In PDF document text
    • http://files.talkaboutitscc.org/uploads/1/3/2/7/132712306/sizijikasaz-webobutubin-wutogamuf-womasivazipeko.pdfIn PDF document text
    • http://files.evolverealty.ca/uploads/1/3/1/8/131857305/jipugibururux-gugusodeb.pdfIn PDF document text
    • http://files.rubysresidences.com/uploads/1/3/2/6/132682976/kijazugigikolipax.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/1/0428/5153/2963/files/pisilafelepuzomaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2401/2696/files/cardiopatia_reumatica_inactiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/mk_vs_dc_universe_moves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/silajoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/kigexarakomada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2855/3634/files/36283984484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8327/files/tuzok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5969/2191/files/59449653562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/xatemitatuvomodekor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/93534000990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8579/0365/files/common_english_idioms_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/jipazajofunisinukukibep.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 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_off000063f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F3 5316 bytes
SHA-256: d38189adfd31432c0edafc3a5e2a2935e2b46015728bc1b7d9378e1db51057f3
font_01_sfnt_off000075e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E5 11656 bytes
SHA-256: 6098c8d702f677c23605de97d2b97342fba46f42a3c04aacee51f0290386e523

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