Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6d7064b3b5e2583…

MALICIOUS

PDF

40.6 KB Created: 2020-08-08 21:02:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01f93f3a4f5ca37de2eff6bf27c2d469 SHA-1: 33952cf488bccd6568168fb7713a55d26a456b4c SHA-256: d6d7064b3b5e2583097e3bd44baf75c3b13de6acf2fd9f981edb43c7ce9f5d3b
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to a 'job application letter pdf' and the malicious URL itself. This suggests the document is designed to trick the user into clicking the link, leading them to malicious infrastructure.

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+application+letter+pdf In PDF document text
    • http://files.fllworkshop.org/uploads/1/3/1/3/131380546/losibopa.pdfIn PDF document text
    • http://files.nevacochranrd.com/uploads/1/3/0/7/130776791/gapevinozesoze_giganimon_tosugizufe.pdfIn PDF document text
    • http://files.kiddibeat.co.za/uploads/1/3/1/6/131637308/nedigomuvosopew.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/1/0429/6730/2295/files/5000545342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/befodexaweme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5780/6486/files/2020_calendar_egypt_with_holidays_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3758/7606/files/80136924357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6331/1512/files/9941356801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/84376358131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/40974839229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3646/7612/files/11459260403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/fototomewezawukixixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1401/1555/files/88926157956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6137/9226/files/caccia_al_tesoro_in_giardino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9839/1196/files/nuvufopimajix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1704/3111/files/estadistica_descriptiva_ejercicios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2893/7880/files/mercury_outboard_service_manual.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
🗂 Part of campaign: kiddibeat.co.za 3 samples

Related samples 4

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_off000062bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BB 5100 bytes
SHA-256: ae6bb71c3323311b26ceeb3bbc29f1eb496ba0c752bac8e6a8eea4fa81c6081a
font_01_sfnt_off00007420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7420 9772 bytes
SHA-256: d4f55c2cc9ba0414a4481d51a86a26ef564fc1a1fe96db563e388cbfca391d03

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