Malicious PDF — malware analysis report

Static analysis result for SHA-256 43a4d02a54aede26…

MALICIOUS

PDF

84.7 KB Created: 2020-08-11 01:54:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f35714a587636dbb053f751896ce08e SHA-1: 52041a0198bbbd58b6677d31f5a782f25a6badeb SHA-256: 43a4d02a54aede26b1d3f5c32aa3a8a06852a6641071d4f2dc6e60f783c5f782
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, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious payload or phishing page. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the attack vector.

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=common+european+framework+of+reference+for+languages+cefr+pdf In PDF document text
    • http://files.udderlygorgeous.com/uploads/1/3/2/6/132681826/kekojuzakidegutew.pdfIn PDF document text
    • http://files.lindymaine.com/uploads/1/3/0/8/130874090/dafizekezi.pdfIn PDF document text
    • http://files.clermontlawnservice.com/uploads/1/3/1/6/131606467/pizufekoj.pdfIn PDF document text
    • http://files.sheilakitchen.com/uploads/1/3/1/6/131607404/vagud.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/1/0432/2089/3851/files/89557762992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/4chan_gif_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1901/6104/files/tetaxitifatozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0188/8416/files/31133965185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gidawibozifuniji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8652/8155/files/cease_and_desist_letter_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9629/4051/files/93543739578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1818/2041/files/dominion_season_1_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8414/5049/files/temerarios_mix_viejitas_pero_bonitas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6773/4171/files/brainwashing_the_science_of_thought_control_kathleen_taylor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3637/6214/files/59246875472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1391/4276/files/traducteur_anglais_francais_document.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF09 11012 bytes
SHA-256: 46797cb42f577d8413ec6e84bfa1355aaf8b1c18aeb17f97c437e65f47405a5d
font_01_sfnt_off0000f353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF353 5536 bytes
SHA-256: 1e7cd2efd95e803af2e9bd75833902ab56fbe5ac71fba15d2739cc550458927b
font_02_sfnt_off00010626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10626 21072 bytes
SHA-256: 17fe9e7ffe527649bb07a5e65001b243b33f6b3765da081b2522abc9edaab53c

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