Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd5ba84b741caf8…

MALICIOUS

PDF

43.1 KB Created: 2020-08-08 06:55:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b6504f180dd95fdf2b3d25d96ff78b5 SHA-1: 57e9e44553b7a21e898e0008c95d76a207b3a139 SHA-256: 5cd5ba84b741caf8996d608338121a97c2c8cdfd32454b6411764d2e3ba63b6a
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector service identified as malicious. The document body and embedded links suggest a tactic to manipulate search engine results or phish users by presenting a seemingly legitimate document lure. No scripts were extracted, but the presence of malicious redirectors and a large number of links indicates a high likelihood of malicious intent.

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=carbon+oxygen+cycle+pdf In PDF document text
    • http://files.francishurley.com/uploads/1/3/0/9/130969356/putoder.pdfIn PDF document text
    • http://files.ardorcandleco.com/uploads/1/3/0/7/130776828/rebokamewod-tanemapovatuk-pufilavoni-figigiwutiporo.pdfIn PDF document text
    • http://nobajuk.mikebergenart.com/uploads/1/3/1/6/131606490/nuxoge-givim-pivipokagarir.pdfIn PDF document text
    • http://files.joegrabowski.com/uploads/1/3/1/3/131398008/213d1701.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2295/4141/files/epidemiologia_roberto_medronho_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/gewaligej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3827/6760/files/vinosubuwulakuvozizupogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5160/6435/files/59656745719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0013/3793/files/59257986961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8660/1635/files/64611954025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tolipokegegami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9153/2699/files/jafavokefonezuxotuvifexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9376/2975/files/fawusapolimefujajokuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3917/8399/files/muzajufojamamofafekimot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4809/0270/files/97800685102.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E11 5136 bytes
SHA-256: 72d1f495690643e0a46bd8e9976816548df4114ee69920b4ef8cb1df8d6d2c2b
font_01_sfnt_off00006f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F97 9956 bytes
SHA-256: 4c0bea304b33321936cf8a4462a92875341d7cfd1930dc75f312acc5af1845ab
font_02_sfnt_off000091a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91A1 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

Open this report in the interactive analyzer, or submit your own file for analysis.