Malicious PDF — malware analysis report

Static analysis result for SHA-256 80cf4b75b70707fc…

MALICIOUS

PDF

45.2 KB Created: 2020-08-14 03:42:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b763fac246313ccc4202caa3d54d283b SHA-1: d548c36decd5628532b67d2f85d81fb1dfa4fa31 SHA-256: 80cf4b75b70707fc68350160c5050fdbfaa0f260da47cc2d188294d80ba08381
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and an SEO link farm, pointing to a phishing or malware distribution scheme. The primary malicious URL identified is https://ttraff.com/pify?keyword=google+analytics+android+app, which is used to redirect users. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to exploit users via a malicious attachment.

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=google+analytics+android+app In PDF document text
    • http://files.winterra.ca/uploads/1/3/1/0/131070894/vitesi-kuwus-fikudeworodub-fopujazunap.pdfIn PDF document text
    • http://fulazisib.sola13.jungw8.com/uploads/1/3/0/7/130776688/gupefixupomu-foposof.pdfIn PDF document text
    • http://foraxugaw.supportacrafter.co.za/uploads/1/3/0/9/130969335/lexowowewibu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0683/4334/files/veletuzanuvikixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/buddhismus_kniha.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/gta_3_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0703/9895/files/environmental_risk_assessment_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/tojamuwefaxujizagubotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8669/3023/files/42242842907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5335/1066/files/suvadelusaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4197/2636/files/dujerubonirefuvimifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/suvegolagizari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4364/2773/files/r._t._o_exam_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7317/4680/files/70519521728.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_off0000650e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650E 5160 bytes
SHA-256: d50b070c37bc2925339c2c27d9fc65620f92c5c6c211446b47cd7c20c72b2ff6
font_01_sfnt_off000076b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B2 10244 bytes
SHA-256: 130c6a8e63a0b2d8de2bbdcbaf25cc7c60087fc1a23818708755c2a20c2401bd
font_02_sfnt_off000099c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99C3 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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