Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c8db3ab8cd53b83…

MALICIOUS

PDF

87.5 KB Created: 2020-07-29 15:04:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a2728190e3db3c31bc9279656fec99f SHA-1: ed138053d502afe9dbf8ed2616ea53e3a04cb4aa SHA-256: 8c8db3ab8cd53b83cd2216a1822ada5a89b2afdeaaf6bd8ead89032af98625bc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

This PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. The primary redirector link, https://ttraff.cc/pify?keyword=benefits+of+computer+viruses+to+computer+industries+pdf, is flagged as malicious. This indicates a likely attempt to lure users to malicious sites, potentially for phishing or malware delivery. The ML classifier also strongly flagged this PDF as malicious.

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=benefits+of+computer+viruses+to+computer+industries+pdf In PDF document text
    • http://files.equineintelligence.co.uk/uploads/1/3/0/7/130775373/pepomupejijuvazo.pdfIn PDF document text
    • http://files.devabeauty.net/uploads/1/3/1/3/131379748/d97f58d.pdfIn PDF document text
    • http://files.sweetlikehoneymua.com/uploads/1/3/2/6/132695915/nuzupemumojuguxu.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/1/0427/4647/8759/files/75136023800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8628/8798/files/58495810094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7370/7925/files/lovugunegibonuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8070/3399/files/99198995010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/xaribukakujuwuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/54399757608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8665/8213/files/nekalusitove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4469/9288/files/vibedunideveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5494/6721/files/nipinaxireveviwemazowase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/limamavikoxititilor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/vaxigoniliz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4637/9426/files/kavisumasifejeb.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: intowishinarts.com 5 samples

Related samples 2

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Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11055 5048 bytes
SHA-256: f509638bad2b6ce17e4124ebccf9c9c99f544985fc9bd4a87cd26fb6ef06a5d2
font_01_sfnt_off00012172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12172 14992 bytes
SHA-256: f7d75f80ca6cf5a835cd0615eec74b60bde1a00fcb4dfb5de343d4b8a7446978

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