Malicious PDF — malware analysis report

Static analysis result for SHA-256 268a234b9df9f202…

MALICIOUS

PDF

45.8 KB Created: 2020-07-24 01:57:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d1773ebcdb877d47e5c344f0fbe85e3 SHA-1: a8cff12129df8af06a86b438ea71024fa8c75a53 SHA-256: 268a234b9df9f2022382743d01b2338e6c0ea0b795b2fa9370ff3942ff38e121
194 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Hurricane Katrina tracking lab answers' and embeds a large number of external links. One of these links points to a known malicious redirector. The document body is heavily obfuscated, but the presence of numerous links, including one to a malicious redirector, strongly suggests a phishing or redirection attack. The file is identified as a PDF, and the heuristics indicate it's a malicious redirector and a link farm.

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=hurricane+katrina+tracking+lab+answers In PDF document text
    • http://files.lgcryogenics.com/uploads/1/3/1/4/131483275/356f27b340a203a.pdfIn PDF document text
    • http://files.davidlouismarino.com/uploads/1/3/0/9/130969800/1599969.pdfIn PDF document text
    • http://files.bellamachines.com/uploads/1/3/1/3/131380466/muwiwo_zugawobixade_pumusunazo.pdfIn PDF document text
    • http://files.hirechase.com/uploads/1/3/0/8/130813094/lubakatam.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/1/0435/1026/8064/files/nefisoxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5357/9430/files/52957560009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2603/9452/files/jonomubomomasoxirumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/96278491374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1479/9012/files/dopikapetixidasanodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4809/2323/files/nerivaxinimulozozuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3282/9342/files/vudakajomazegadamekaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/12452308359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/somaribi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/28068970705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/nafizofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vebamuwonodivori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/4977089875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9436/7644/files/84270325624.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 7

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_off0000765f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765F 4996 bytes
SHA-256: 124b901fe9f62032a9bc4a796592960c94696766c50d16a7494e92aabd04677d
font_01_sfnt_off00008777.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8777 10088 bytes
SHA-256: 793eff097ca770805af5eb80e6df8acc5e7f3c2be5c4cc5a87a1922515079147

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