Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e186060aba8a4e5…

MALICIOUS

PDF

68.4 KB Created: 2020-08-03 00:51:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 561641605882a07e2568caa79ada04a3 SHA-1: b818f96b53709ebee37d2947789a531616cf1834 SHA-256: 4e186060aba8a4e59b99e1c0c157999172cc3d984697986b578eb577d42825ab
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a malicious redirector, indicating an attempt to drive traffic to a malicious site. The document body, though heavily obfuscated, contains text related to a 'Massey Ferguson 135 repair manual pdf', suggesting a lure. The primary malicious IOC is the redirector URL which is used to obscure the final destination.

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=massey+ferguson+135+repair+manual+pdf In PDF document text
    • http://files.tammybiggsgymnastics.org/uploads/1/3/1/4/131438188/toxepu.pdfIn PDF document text
    • http://files.simpsonchorus.com/uploads/1/3/0/8/130813630/a23a0fa3b0c5d63.pdfIn PDF document text
    • http://files.stevenodonnell.com/uploads/1/3/0/7/130776022/puvijij.pdfIn PDF document text
    • http://files.atlantadentalanesthesia.com/uploads/1/3/1/4/131455883/najikenusapijevofifu.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/1/0428/4507/7660/files/67047793834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3846/6467/files/68645286279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0323/1908/files/purifamavomugoxusupedilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8233/3851/files/gofid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1808/1688/files/lerexuwevis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1250/5243/files/fawul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/52037468010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/46073274804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/xenamiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61411835552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4387/files/craftsman_dlt_3000_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7344/5788/files/jamaxajibisujipasodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5551/2738/files/fovajudilekobosijolife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/ieee_754_converter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5338/3833/files/31522760355.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_off0000cb7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB7E 5808 bytes
SHA-256: 03a17953676e41172ca183ea82563e1579aac1444a2e94e99b87f9282220f8dc
font_01_sfnt_off0000df52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF52 11032 bytes
SHA-256: 3c671ee64582a0c5823b53780fbaff1cd56f1e26c7d91ca95aa6d23c6df0e74d

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