Malicious PDF — malware analysis report

Static analysis result for SHA-256 85a74a6f22e70326…

MALICIOUS

PDF

46.2 KB Created: 2020-08-07 13:27:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee16d82dbd06c440bd2bd58220a656e1 SHA-1: c573b6741961726ffbbeb6d0caff32f54611690b SHA-256: 85a74a6f22e7032683f7ef4ea3a294ff86ad79aedf3c64948af719696c69d3de
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating redirection to known malicious infrastructure via 'ttraff.cc'. The document body and heuristics suggest a lure for a 'blind side pdf download', likely a phishing attempt to redirect users to malicious content. The ML classifier strongly supports the malicious verdict.

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=blind+side+pdf+download In PDF document text
    • http://files.charlotteponyclub.com/uploads/1/3/1/0/131069987/tilafowenes.pdfIn PDF document text
    • http://files.ecsolutionsph.com/uploads/1/3/2/7/132710743/fifawo.pdfIn PDF document text
    • http://files.sharonhalfordskintherapy.com/uploads/1/3/1/3/131384281/2985025.pdfIn PDF document text
    • http://peguv.stephanieruthkane.com/uploads/1/3/0/7/130740025/7092107.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/1/0436/8482/3205/files/5918725722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5693/9676/files/el_mundo_fragmentado_cornelius_castoriadis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasodidupafulad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3614/5814/files/72606709680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8436/5468/files/lujewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5080/3099/files/jomamonuvorimuvikutuxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1907/4712/files/jurnal_anti_jamur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7663/3247/files/berichtsheft_vorlage_ihk_bayern.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8158/0188/files/muwilojizoxosamefunonef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/nesevibax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7656/7711/files/barefota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6104/1559/files/aiims_biology_chapterwise_questions.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 6

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_off000069f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F6 4788 bytes
SHA-256: 29e02f0682a1b55071324c85ca0c1bc6757d314c105c09ff0f5920c6961dd999
font_01_sfnt_off00007a56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A56 10432 bytes
SHA-256: 84b469e77bdc28f9abfc1d78208ae4691ba9a22c67421096ee6b00876cf337dc
font_02_sfnt_off00009def.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DEF 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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