Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ce4d89c5fdac9ab…

MALICIOUS

PDF

36.1 KB Created: 2020-07-29 14:26:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc0a764ebc42a16cff8681e1fdf000ac SHA-1: 88adcc39e50811d51b319b85b774ff14c2aef767 SHA-256: 6ce4d89c5fdac9abb3f3dcd45f7c0703bfb9bce431f0ba7e7fe14a965176f446
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary link, 'https://ttraff.ru/pify?keyword=assertiveness+workbook+free+pdf', is identified as a malicious redirector and part of an SEO link farm. This suggests the document is designed to drive traffic to potentially malicious or spam content, masquerading as a free download.

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.ru/pify?keyword=assertiveness+workbook+free+pdf In PDF document text
    • http://files.ordubhchocolate.com/uploads/1/3/0/7/130738512/vopitigiwopi-vukovip.pdfIn PDF document text
    • http://files.itsjust700.com/uploads/1/3/1/8/131871648/gujepavijawi_dixoti.pdfIn PDF document text
    • http://files.widowscorporation.org/uploads/1/3/2/8/132815015/1d09c1e653.pdfIn PDF document text
    • http://files.cocrimeanalysis.org/uploads/1/3/2/7/132712206/6648375.pdfIn PDF document text
    • http://files.tramici.com/uploads/1/3/1/6/131636745/vugolekaxoja_sivef_taselogani.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/1/0431/1423/4017/files/xewidetenetowugapiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0702/5060/files/fukevebove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51191810805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3137/8590/files/96263047399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9280/3744/files/pofaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6399/2742/files/bogupek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4098/7543/files/mawonapofofotut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55079075607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2405/4429/files/wakowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6429/files/genitegulozudibebijaz.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 8

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_off00005222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5222 4924 bytes
SHA-256: 0ff4994bcecb29889aed7f90942c08035a60a8694c268a23f2f5ff20e8d345d4
font_01_sfnt_off000062fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FD 9092 bytes
SHA-256: f4198527b2aa9a0eab609c451a267276371b21c62a80ec1de5d09fd3088b4854

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