Malicious PDF — malware analysis report

Static analysis result for SHA-256 c530c81d85949c58…

MALICIOUS

PDF

41.5 KB Created: 2020-08-05 02:16:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2e89f09768defb1c01513c22c0d0ab5 SHA-1: a17d763dca89ca424dde9f634b9458bccb795bbf SHA-256: c530c81d85949c58256162fcd7eb0aadf21c541155af94e39a6e9c6551cb5bd6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm designed to redirect users to potentially malicious content, masquerading as a free map download. The primary redirector URL is https://ttraff.ru/pify?keyword=blank+world+map+pdf+free+download. The ML classifier strongly indicated maliciousness, and the presence of numerous embedded links supports a social engineering attack pattern.

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=blank+world+map+pdf+free+download In PDF document text
    • http://files.appliedmicronanolab.com/uploads/1/3/1/4/131411688/04d0cd9a.pdfIn PDF document text
    • http://files.rachelawallis.com/uploads/1/3/0/7/130776462/6952019.pdfIn PDF document text
    • http://files.leadingtowellness.com/uploads/1/3/1/8/131859895/8796372.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/a4_pixel_size.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1743/3251/files/the_cure_1995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89853177043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7665/7057/files/24631029060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9265/5780/files/timadigasasibavuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9115/6380/files/84956834109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3549/2503/files/biwewiminijedexux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/55490440552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3692/6374/files/35828480542.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: appliedmicronanolab.com 4 samples

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000573c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x573C 4872 bytes
SHA-256: 220a1d65e7e1627da3f6ab65441c21bf5331f3d83d6324ba946bd91c009f6f75
font_01_sfnt_off000067c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C0 10352 bytes
SHA-256: 66c998005c8205165a2cf09a71c0dc1c754395ea4fc2be97928e10098b8c295e
font_02_sfnt_off00008b21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B21 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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