Malicious PDF — malware analysis report

Static analysis result for SHA-256 61df1fdf23f12294…

MALICIOUS

PDF

42.5 KB Created: 2020-08-10 01:08:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66eb9200e7bcc4398b54962ff42295f7 SHA-1: c25bb0bca8fc27238979a41bb9c3ad2868b326ae SHA-256: 61df1fdf23f122945515203af4ee0a7acf9ddb33ad6a4bbf0d35732a06a368d0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially garbled, includes the URL https://ttraff.cc/pify?keyword=audio+visual+materials+pdf, which is also flagged as malicious. The presence of a large number of external links suggests an attempt to manipulate search engine rankings or to distribute malicious content through a link farm.

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=audio+visual+materials+pdf In PDF document text
    • http://files.lifeoflongearion.com/uploads/1/3/2/7/132711954/vudopifibetebim-xogadila.pdfIn PDF document text
    • http://files.petereident.com/uploads/1/3/1/4/131437636/xogoser.pdfIn PDF document text
    • http://files.ingallsplanning.com/uploads/1/3/0/7/130739202/9559813.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/1/0434/0911/3253/files/online_picture_converter_to_jpg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/duwivugenepiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8778/2297/files/91289963369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7279/0421/files/11194022242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2242/6013/files/6255926563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7796/7776/files/49796193034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/8563941719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5396/3678/files/autocare_association_factbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/8706881017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2558/7610/files/42945656234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1353/7951/files/dmv_written_test_nj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7565/7125/files/99_names_of_allah_with_meanings_in_roman_english.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_off00006961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6961 5236 bytes
SHA-256: 65721bde70b3888d262065d2e7d3a974c12383a32dc76c91981eb8c80089f66b
font_01_sfnt_off00007b1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B1F 9940 bytes
SHA-256: 2d0ca3e3759c2b0a506349057ca7ed2f09df1cacdf8ea5c4bf1c938a6b57d2b6

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