Malicious PDF — malware analysis report

Static analysis result for SHA-256 4632207cd0e53190…

MALICIOUS

PDF

42.5 KB Created: 2020-08-07 03:36:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0366fd41fb42b7e644b9ffb405e1c68b SHA-1: e41fdbb3efcfcb4511c42479307f4fb4966b2550 SHA-256: 4632207cd0e53190103f48774f0e4165dfdb0024299b7391ddb6dfbd3891bdd6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though partially corrupted, includes the same URL and text related to 'Agile software development with scrum', suggesting a lure to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to obscure the malicious redirector.

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=agile+software+development+with+scrum+mike+beedle+pdf In PDF document text
    • http://files.jcfarming.co.uk/uploads/1/3/1/8/131857421/7437542.pdfIn PDF document text
    • http://files.tlcor.org/uploads/1/3/1/3/131380397/2787cf38.pdfIn PDF document text
    • http://wesova.2ra.co/uploads/1/3/0/7/130776486/bezavibagara_wowupawi_mebafog.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/1/0429/5196/6873/files/46620074582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tipibag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2641/4749/files/86402506242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9629/4051/files/wevuzazifazaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0760/4896/files/45552826882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7309/3288/files/lupilopevew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedagefegumam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9350/8771/files/44092455045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53293114795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5448/8990/files/2001_mitsubishi_mirage_repair_manual_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gigogew.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: biogeographyresearchlab.net 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_off00006662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6662 5912 bytes
SHA-256: 0f8e0d87fdb578d71061b7e508ea8255b1a061a2d52475d8f02304e5552a4025
font_01_sfnt_off00007a7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7A 10088 bytes
SHA-256: acce1f8143426b90c51b4f33d3f744e2c336811175ff59d03ce70458f4916454

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