Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0c002c98af21efa…

MALICIOUS

PDF

42.3 KB Created: 2020-08-04 14:23:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b330f8e65ac9550d3fb2d60b4a01715 SHA-1: 3078d20a812ce9c369de894d55904ca90f12b1bc SHA-256: f0c002c98af21efa5784781300e4c36f371ee15c876fbc1e0796ef68f814246c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a link to a known malicious redirector at https://ttraff.ru/pify?keyword=icds+9+borrowing+cost+pdf. The document body, though heavily obfuscated, contains references to the same URL, suggesting a deliberate attempt to redirect the user to malicious infrastructure. The presence of numerous links, many hosted on Shopify, indicates a link farm designed to attract traffic.

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=icds+9+borrowing+cost+pdf In PDF document text
    • http://files.mazamo.co.uk/uploads/1/3/0/9/130969158/borebemobenil-fawuwajal.pdfIn PDF document text
    • http://files.nsiclan.com/uploads/1/3/1/4/131454352/zopujul.pdfIn PDF document text
    • http://files.aventuratherapist.com/uploads/1/3/1/8/131856158/xewugifa-gemadezuridode-xapaveneku.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/1/0428/1594/6911/files/90536266142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4704/2728/files/2761968228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/18597129599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/sakis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7235/5478/files/1010007696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0747/5875/files/17756504415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1047/4663/files/59400904777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0577/7832/files/65953984449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4973/0727/files/15616868879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/sulewupepazino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/89041312225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/epson_xp-_640_manual.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67D9 5408 bytes
SHA-256: c81d64a5fc16c51798a99bc7361273d83f8356699bbb6b3d0ace57db1c91148c
font_01_sfnt_off00007a58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A58 9908 bytes
SHA-256: 6f1624525e16fa2ff1f677fd563f1f21bf544764a4f0b5e7cb3c5787cba89968

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