Malicious PDF — malware analysis report

Static analysis result for SHA-256 0af64c57afa916ea…

MALICIOUS

PDF

32.3 KB Created: 2020-08-22 08:46:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6231f63a22b05156f7fb1c13e983bb0c SHA-1: e5e26a5ff60910f62c8236fa3d5cf656797ef0ef SHA-256: 0af64c57afa916eaef84ecbdc83720679604298ea8d66ebef5b0e4655127a7e5
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary redirector URL pointing to malicious infrastructure. The heuristic firings indicate this is a link farm designed for SEO poisoning, likely to lure users with promises of free templates. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the embedded URLs are the primary attack vector.

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=template+banner+corel+draw+gratis In PDF document text
    • http://files.txtorches.com/uploads/1/3/0/7/130739169/ba61e090309ce.pdfIn PDF document text
    • http://files.acupunctureworksvt.com/uploads/1/3/1/6/131637482/6974442.pdfIn PDF document text
    • http://rovoxelig.splashsteamboat.org/uploads/1/3/1/4/131453526/fipesoja.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/1/0429/4439/7468/files/piwawedizugotajujogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8474/9729/files/rerujovapur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7812/3680/files/27977249144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9442/4232/files/zuwapupuzezazegaxodakamak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/catalytic_reactions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5318/5174/files/29889581973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5045/8526/files/vofexuvobiriw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6590/1210/files/gemoxobexisafuzonabok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1096/4131/files/vedenojonixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6189/4565/files/85191398617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89832202682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4365/8650/files/pixide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/4620949585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4077026649.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_off00004597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4597 5572 bytes
SHA-256: 7f67fd1b4da81693ab5adfa7a9b664d52d5e79009945720dc066560dab726769
font_01_sfnt_off00005871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5871 8148 bytes
SHA-256: 9c3f2f511542965bace5b5c6745e4f4fcae90a425b2516ccb36e7657723ad52e

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