Malicious PDF — malware analysis report

Static analysis result for SHA-256 43e14701b13c6d5a…

MALICIOUS

PDF

47.1 KB Created: 2020-08-06 22:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d5d85e6c0607c3bfd58c31bd69ecd4f SHA-1: 42e8abaf894cd02cf9c588839815fbbd1f33dec1 SHA-256: 43e14701b13c6d5a407aec4663b9b38a26b54f6d56fe65b950fcdcbe4f3f8f7c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it's a malicious redirector, pointing to 'https://ttraff.com/pify?keyword=job+acceptance+letter+pdf'. This URL is presented within the document body, disguised as a job acceptance letter, to entice users to click. The PDF also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which are hosted on Shopify. The primary malicious URL is the most critical IOC.

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=job+acceptance+letter+pdf In PDF document text
    • http://bixenefel.growabroadllc.org/uploads/1/3/1/3/131379732/ruxowilob.pdfIn PDF document text
    • http://jujes.gtts.eu/uploads/1/3/2/6/132695278/tovadixeniligos-lavawagag-dekalu-kutuxonubagam.pdfIn PDF document text
    • http://rumiviv.understandingwhowewere.com/uploads/1/3/1/4/131453540/tilinafiwud-pivisaxemoji-jolujako.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/1/0435/4686/9911/files/roofing_contract_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4641/1160/files/aterosclerosis_carotidea.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2700/4577/files/xapatexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/the_new_psycho_cybernetics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8248/0806/files/26035147031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8295/7478/files/web_root_spysweeper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0853/9299/files/61393131560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6628/6490/files/tonaxitew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6302/4542/files/11231581154.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 3

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_off00007d02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D02 5100 bytes
SHA-256: 667c404c933f34c5323b6f0507ab7d88c9f1cac62806711a1930198e1c377bd9
font_01_sfnt_off00008e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E69 9940 bytes
SHA-256: 28047aeef2b0d32f819abe9e202a89f05a461b2dcfda08f6ec8f4b3c870113cc

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