Malicious PDF — malware analysis report

Static analysis result for SHA-256 85f6cff7f00d7b8e…

MALICIOUS

PDF

42.1 KB Created: 2020-08-06 17:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13b6cabb949c4b9c8a83fa2562a1a005 SHA-1: e8422ca4ede3efe75f9767a501366079eeb51bce SHA-256: 85f6cff7f00d7b8ea7019df23ef17996e840afa1241e9739f2485f80f964b4a5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDFs, many of which are hosted on Shopify and appear to be part of an SEO link farm. One prominent link redirects through 'ttraff.cc', a known malicious redirector, to a page suggesting a 'wasteland survival guide'. This indicates a phishing or scam attempt designed to trick users into clicking malicious links. No scripts were extracted, but the PDF structure and embedded links strongly suggest 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.cc/pify?keyword=wasteland+survival+guide+pdf In PDF document text
    • http://files.mysonnyrae.com/uploads/1/3/1/4/131455621/kolukam_debovok_xunejukofujape_dumusuw.pdfIn PDF document text
    • http://files.rockport-pewter.com/uploads/1/3/2/3/132303020/popax.pdfIn PDF document text
    • http://files.insightmentalwellness.com/uploads/1/3/2/6/132696483/cbba64ad25.pdfIn PDF document text
    • http://pojiwofa.luxeavie.net/uploads/1/3/0/7/130775413/jutimemiwuj_nonoga_garivifejo.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/1/0431/6263/2360/files/7970273593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/wobadetilaxigetebigej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7330/5762/files/lijenaturegudigerude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2269/4046/files/nadubukil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3592/files/7838366865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6542/5570/files/63456575345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8353/9366/files/zebepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4411/9462/files/xulazufavapifunuxigapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3301/9047/files/93064069903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6769/5523/files/5922387050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4622/files/juzubasixofipugu.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_off00006709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6709 5280 bytes
SHA-256: af67b18176b2629ac4c8f08a081d5b71847cc89ae5831738953017d4634e54c1
font_01_sfnt_off00007924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7924 10164 bytes
SHA-256: bce31f18560e46de65cca9ba4dcd5f64c12caa959be32b8baba03cf5789298f5

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