Malicious PDF — malware analysis report

Static analysis result for SHA-256 01d70c5a2c8c5f74…

MALICIOUS

PDF

50.8 KB Created: 2020-08-20 18:04:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 986822649c5fd1693a63fdb63c662109 SHA-1: 726f0e5770768eb009a2b21a6cca8b8a7e4b0af1 SHA-256: 01d70c5a2c8c5f74d18157fa90ddf9d0e8409ac2f97b9b9fb5c12a83f56f4992
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one to a known malicious redirector, disguised as a bodybuilding guide. The ML classifier strongly indicates maliciousness, and the presence of a redirector suggests a phishing or scam attempt to lead users to malicious content. No scripts were extracted, but the document structure and embedded links are indicative of a social engineering attack.

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.com/pify?keyword=bodybuilding+transformation+female+over+40 In PDF document text
    • http://files.seaningham.org/uploads/1/3/0/7/130739962/7edf6c20.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/1/0429/6520/5141/files/gidudagekidujokuwosovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6809/6661/files/67471889418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6638/2749/files/opencv_3_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9558/8005/files/85528471673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/ap_biology_biochemistry_practice_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6224/8102/files/gemivonekofisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4101/4438/files/xagibotifogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4541/2245/files/40945748144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7679/5030/files/71000571089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7982/files/77419218928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/61264907345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3253/4440/files/cisco_ccna_200_125_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/xadezumoxutenidodevelaves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0808/9499/files/geworurozaragefi.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 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_off000087bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87BD 5808 bytes
SHA-256: 7608c5420deedcf1c855601bfa7db26c7c8c600cb17ba145de338d992ef7ea2a
font_01_sfnt_off00009b7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B7B 10060 bytes
SHA-256: 0ef92ff7978c4ec328159cb5f6f9159a9ebdab436e70a45a13acdd94da257acc

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