Malicious PDF — malware analysis report

Static analysis result for SHA-256 824a6af9e99b4730…

MALICIOUS

PDF

63.6 KB Created: 2020-08-19 15:40:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 261233f1377ea2f3b28e591a4cd702df SHA-1: 8da0fa4ff8b9f8125cac4e0a8e11bb94a4d7369f SHA-256: 824a6af9e99b4730f700e04a7fe981a4d8c8adaab9981b7976622f47ffae8474
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious URL, identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains text suggesting a lure related to 'abc report newspaper circulation'. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector links points to a phishing or scam campaign.

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.ru/pify?keyword=abc+report+newspaper+circulation In PDF document text
    • http://kinujul.corhartselle.org/uploads/1/3/2/6/132681947/883779.pdfIn PDF document text
    • http://files.andreamalinskymason.com/uploads/1/3/0/8/130814284/6058769.pdfIn PDF document text
    • http://files.mimiscrafts.com/uploads/1/3/1/4/131406610/ec6742495c08.pdfIn PDF document text
    • http://tasep.parksummerprograms.org/uploads/1/3/1/0/131070872/bifagusi.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/1/0429/1582/3772/files/netosowupibupolimuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1449/6161/files/nuxegawibema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0825/8211/files/cardinal_birdhouse_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4871/3896/files/90057166562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8933/files/37242507051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1164/4324/files/le_calvinisme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5630/4023/files/dd_news_reporter_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4605/0714/files/timer_14_minutes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1263/5299/files/dnd_sorcerer_wild_magic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85286147205.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAED9 5148 bytes
SHA-256: 46e677bd2bd403fbef53dd9946dbf5d3ea24bb6a4bd98c1a593dec41fdd1d655
font_01_sfnt_off0000c06d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC06D 16032 bytes
SHA-256: 467555bbddb84b584f2f4fa0d5f240b7b1f38eb5aadb8171b2f767737dacd3e3

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