Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce70f7e3c162928…

MALICIOUS

PDF

37.9 KB Created: 2020-08-09 18:09:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05da485d9f525186c059ca35145c7418 SHA-1: 2b45203c74e3d4831aa604766577d77edf0d4d20 SHA-256: 7ce70f7e3c1629286ca1703036f62f132fb52a4db9ae115eef685f707b465ad9
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including a primary redirector URL, suggesting a link farm or phishing campaign. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, likely for credential harvesting or malware distribution. Although no scripts were explicitly extracted, the embedded URLs and the nature of the heuristics strongly suggest malicious intent.

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=computer+literacy+test+pdf In PDF document text
    • http://files.arielmeylanart.com/uploads/1/3/1/4/131437474/difurupononuta.pdfIn PDF document text
    • http://feziben.corinne-a-michels-phd.net/uploads/1/3/1/4/131437615/gedije.pdfIn PDF document text
    • http://files.madisonarttherapy.com/uploads/1/3/1/1/131163854/pamapu.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/1/0433/0687/7080/files/94260126358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2409/7191/files/rosalotofusipidodejar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7461/files/sezudagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5651/9585/files/qsofa_score.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6264/7189/files/96996921090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/degipetamasiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1461/8262/files/7180249981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0867/1394/files/vujakutumuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6054/3138/files/65440607559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8549/6482/files/vugejeruxexubukava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96617946950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8161/3987/files/faraday_s_law_of_electrolysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/vatub.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
🗂 Part of campaign: corinne-a-michels-phd.net 4 samples

Related samples 1

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_off000055c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55C1 5308 bytes
SHA-256: d2b40bde4167ca2a4d6c338a158fbc9bf8ee648396e301cf63d81af2cb1de231
font_01_sfnt_off000067bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67BC 10360 bytes
SHA-256: 584c33c4bbdcd416ebfd47b70eb02e82afd9f3ba9b72e2ec54b5a5424f2ad595

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