Malicious PDF — malware analysis report

Static analysis result for SHA-256 69f458089715109c…

MALICIOUS

PDF

39.2 KB Created: 2020-08-20 12:47:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c29e85a9efee647518a4b08f916f4a03 SHA-1: fed9fd4c552d200e3099b839b8a93984d88adb78 SHA-256: 69f458089715109ca3540ed29898dcb55f221d9be92f3ce686aedb81ad093297
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service known to host malicious content. The document body and heuristics indicate a tactic of SEO poisoning, luring users with seemingly legitimate document titles to a redirector that ultimately leads to malicious infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=far+east+3000+chinese+character+dictionary+pdf.

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=far+east+3000+chinese+character+dictionary+pdf In PDF document text
    • http://files.markspencercook.com/uploads/1/3/1/6/131606125/bowikedelijiban.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/1/0428/7594/5113/files/synonyms_words_in_english_with_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/jovudufowidowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/femei_singure_cesare_pavese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3249/4751/files/test_credit_card_numbers_with_cvv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8549/files/kejemikufemexiraregabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9386/1279/files/waguvixonaduxat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6146/9596/files/sorosuxutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8176/0935/files/primary_and_secondary_emotions_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/76948019775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65545430121.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_off00004d7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D7B 3360 bytes
SHA-256: 51cf872f58ca5a7e8c5341e9425e41c6ca6e3d47ff3f969c81d8603c236bbb46
font_01_sfnt_off0000597e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x597E 5572 bytes
SHA-256: 2e0127d16004d54f4e62df16526241e386e12a08c26f04fafae228619b6502f8
font_02_sfnt_off00006c6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6B 10324 bytes
SHA-256: eac975aa0fb833aaff13920e43103becb3d84a28d845136867dc2beecc2a4e5e

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