Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae69856b443cf17…

MALICIOUS

PDF

44.1 KB Created: 2020-08-24 15:52:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a85156694ffd9c0e634f45e17197c387 SHA-1: ed07a53b8797d68b83a69b00ae5e60878f167824 SHA-256: 5ae69856b443cf17e822d965a529718b9211877138cab25a7d807d5839bf5a77
194 Risk Score

Malware Insights

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

The PDF contains multiple links to redirector infrastructure, specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that points to a redirector, which in turn links to a PDF file. This suggests an attempt to lure users to malicious content, likely for phishing or malware distribution. The ML classifier strongly supports the malicious nature of this PDF.

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=bhakta+prahlada+all+songs+free In PDF document text
    • http://files.misswinniesabc.com/uploads/1/3/0/8/130813095/b1a9b40950.pdfIn PDF document text
    • http://jiteneji.thealbibritefoundation.org/uploads/1/3/1/4/131453858/mipuwapafejogexel.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/1/0437/7870/3511/files/setujabitusigiwerub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1613/4551/files/wupati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2920/8983/files/72725262579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5164/6119/files/kootenai_bridge_academy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/7450/4102/files/fxcm_trading_station_user_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/28476321471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2801/3471/files/60604309926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3031/4151/files/antecedentes_de_la_contabilidad_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9289/2053/files/damazurutevabemularumuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1052/3042/files/integrating_rational_functions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5973/9814/files/jufabizojepabet.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 1

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_off00006027.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6027 5416 bytes
SHA-256: bb6ff69acff1955f9fd1007c36731b71fafc5ec8db9af55bf8ae9266ae28b6cf
font_01_sfnt_off0000728e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x728E 15708 bytes
SHA-256: 9d64439c696d05a095fac9134fe7b6937468320d882737f33bc8554c4ea3e67d

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