Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e16eac1059aaed1…

MALICIOUS

PDF

51.5 KB Created: 2020-07-23 16:45:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e8d0eee8acd6bb4566eeaa2eb2e3359 SHA-1: f435688c5a554ceecf4dd184be6857b5ec5e1d82 SHA-256: 5e16eac1059aaed1b1192ac691a3e485c83c3002d8d4544092e2d2e6aa79332e
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, indicating a link farm designed to obscure the final destination. The primary redirector URL is associated with malicious activity. The document body, though heavily obfuscated, contains keywords related to a 'wow herbalism guide', suggesting a lure for users interested in online games. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious classification.

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=wow+herbalism+guide+wotlk In PDF document text
    • http://files.lovespellsaustralia.com/uploads/1/3/1/4/131483002/wofenugop-musirazotasa.pdfIn PDF document text
    • http://files.angeloflove.net/uploads/1/3/0/8/130813111/2af7eb045.pdfIn PDF document text
    • http://files.sadmn.nl/uploads/1/3/1/4/131407406/5038875.pdfIn PDF document text
    • http://files.totalbodyfusion.shop/uploads/1/3/0/7/130738504/c7f0d5d6389f08.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/1/0432/6611/3694/files/rorufifazidofagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1958/2110/files/nuwumidininuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5770/files/1394173565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9618/7815/files/73389739201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/zidotodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/29608700856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/33027139310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7087/4009/files/sazetatepadutunujutineg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2471/9773/files/66423078656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5195/7923/files/fujedemega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/buvebovajolaboxutopozudox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1097/4108/files/1796140939.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 6

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_off00008c6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C6C 5324 bytes
SHA-256: 7ac71b209d3fc0bb979b13b6a1f0739354e912d7616ac67bb7d83483c77645bc
font_01_sfnt_off00009e98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E98 10084 bytes
SHA-256: 95808564b77a3043fd7f9357479bd6796f4f5d294e882af4dec3648aca942217

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