Malicious PDF — malware analysis report

Static analysis result for SHA-256 6389c199a11ca9ab…

MALICIOUS

PDF

34.5 KB Created: 2020-08-20 13:43:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cac9978e436d2d87d0ff9ccc8f70812f SHA-1: 181d7cd402a76502b2410b9ba6590bcf92951cbe SHA-256: 6389c199a11ca9ab139a1142a14f10fe710c8e93b5a68a6afa33be3e79d9a1ef
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) identified as malicious. The document body, though obfuscated, contains the URL https://ttraff.cc/pify?keyword=chsp+respite+guidelines, suggesting a phishing or scam lure disguised as 'Chsp respite guidelines'. The presence of a large number of SEO-linked PDFs indicates an attempt to generate traffic through deceptive means.

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=chsp+respite+guidelines In PDF document text
    • http://files.morningsideunitedchurch.org/uploads/1/3/1/4/131406288/b6c549d76b9dd7f.pdfIn PDF document text
    • http://loleredu.coldcurve.net/uploads/1/3/2/3/132303134/dizaperu-wodixilijusebob.pdfIn PDF document text
    • http://files.wisefirstgrade.com/uploads/1/3/0/8/130813988/bewevofak.pdfIn PDF document text
    • http://files.rooznote.com/uploads/1/3/2/6/132682790/xumikuxexeki.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/1/0438/8097/2456/files/airmon_ng_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1553/6793/files/understanding_learning_disabilities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1887/8114/files/short_biography_of_william_shakespeare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/5482/7429/files/most_common_english_phrases.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/zegofexuredudim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1637/9816/files/76091444569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/xewojoribu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7192/9496/files/9742439840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1050/6404/files/55794186724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4448/6811/files/effects_of_tardiness_in_academic_performance_thesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5654/4409/files/camping_checklist_australia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4677/9552/files/86864673834.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_off00004d7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D7A 4916 bytes
SHA-256: 6dad5af31b84b8edd9d7774e0adcd28432acc41b202ef114470a6da8a25d9f5c
font_01_sfnt_off00005e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2D 9128 bytes
SHA-256: 5827268b7631fcc71add40bc7582953d5394ae60450ba88193a7c77551dbbdd6

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