Malicious PDF — malware analysis report

Static analysis result for SHA-256 45c96355bd5fa55b…

MALICIOUS

PDF

45.2 KB Created: 2020-07-31 08:22:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd23a9f4d402850e81a2a91fd425c8c6 SHA-1: 482db208981877b3bc826c1c6a284654ea67b115 SHA-256: 45c96355bd5fa55bebfbcdb7f94ab82cd3cb5714e3ef292dec443d2df88380d6
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be directing users to malicious infrastructure via embedded links.

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=tatalaksana+anemia+defisiensi+besi+pada+ibu+hamil+pdf In PDF document text
    • http://files.alikimyrianidi.com/uploads/1/3/0/9/130969654/f0d4801b2d7b.pdfIn PDF document text
    • http://files.greenhousethinktank.org/uploads/1/3/1/4/131407857/biwonarolok.pdfIn PDF document text
    • http://files.browexpressionsbycynthia.com/uploads/1/3/1/3/131383754/cebd0df2ab3e17.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/1/0435/9382/6467/files/zumowabuwirukazipapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/xodalorizudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/pesuzevajuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76957488457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5468/4565/files/jimuvupazozanixol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1157/9809/files/65335322890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8360/files/puvavitekaduzokexexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8073/6150/files/wikabigufegakudegatedeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tukesameb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4248/0021/files/pelemesemobuxivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3364/7525/files/78265082755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/55188563881.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 2

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_off00007497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7497 5112 bytes
SHA-256: 2490979cad357cb9a8c2437ee97783f41cc7994cd86ba025d15bfb6322bb272b
font_01_sfnt_off000085c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C0 9912 bytes
SHA-256: 46c46a9b43425423222073c103d4380f91263f2b2a70479d224e4b63856b6703

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