Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b4b734e1261c99…

MALICIOUS

PDF

34.9 KB Created: 2020-08-02 22:45:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ad36ff68455b400c2bb269b0d039210 SHA-1: 973c58affd514bac5b87c07239dc6792019f9865 SHA-256: 88b4b734e1261c9948aff2da2786b89255460a48357da69f30ae62a0778302be
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a lure related to "Songs from lilo and stitch" and includes the malicious redirector URL. This indicates an attempt to trick users into visiting a malicious site, likely for phishing or malware distribution.

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=songs+from+lilo+and+stitch In PDF document text
    • http://files.diamondlfeedandtransport.com/uploads/1/3/1/4/131453486/389712.pdfIn PDF document text
    • http://files.njmsxc.com/uploads/1/3/1/6/131636689/lojovek.pdfIn PDF document text
    • http://files.stbindymusic.com/uploads/1/3/1/4/131411762/79e6b140.pdfIn PDF document text
    • http://files.totaltravelsystem.com/uploads/1/3/0/8/130814680/8321069.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/1/0431/6938/2568/files/bujuwemugexowonapufuxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/6663542267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4488/7963/files/23542409803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1750/0834/files/mamawijuzusaboxejewas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2955/2552/files/undo_git_add.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5945/3860/files/43883400356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2145/8853/files/fikofejowaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0873/6928/files/zapefifosekuluruvokakij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/demajez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/fapogusibol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/gosilij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/646255477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9071/5548/files/zuzufapesijemarozuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7732/8278/files/saxuxadadutus.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 3

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_off00004a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A74 5540 bytes
SHA-256: bf64b7ba04b781be34304ae506c8b325a9a3ec3e1937975d39830af800092e6c
font_01_sfnt_off00005d19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D19 9868 bytes
SHA-256: dfe37c5a917794e5468b9c6145936e24f43e7ed5f9cd4974914d57f60dba5e54

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