Malicious PDF — malware analysis report

Static analysis result for SHA-256 180d24e36231a49d…

MALICIOUS

PDF

43.6 KB Created: 2020-07-30 03:24:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b68d1469ecd192d9ab70fe38dbef034d SHA-1: 8e754d2ac7395aaec61d5970f1ea57017d99de60 SHA-256: 180d24e36231a49d7def88b7dbb84cd9fc2247df463bf6cf14b72e7d5e99e3c4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, suggests a 'security analysis pdf' lure. The presence of embedded URLs and the ML classifier's high confidence indicate malicious intent, likely to redirect users to a phishing or malware distribution site.

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=security+analysis+pdf In PDF document text
    • http://files.mimedesignstudio.com/uploads/1/3/2/6/132681826/38ee6e314dfd.pdfIn PDF document text
    • http://files.chandankhanal.com/uploads/1/3/2/6/132682787/telesatabidekowasa.pdfIn PDF document text
    • http://files.totaltutoringservices.com/uploads/1/3/1/4/131453493/2331749.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/1/0431/0702/5056/files/bofelixaxux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1100/4821/files/buwijumivimaberotugobep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5647/1970/files/28599154075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9009713252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2393/9237/files/wafugun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/vapore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6517/2387/files/zogifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9029/7507/files/82989649898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8468/5224/files/kutagiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4245/5197/files/3352637892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/gipufukiribukugijaxekijux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2076/0741/files/rawoxadelorizibesare.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 4

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_off00006c94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C94 5124 bytes
SHA-256: f9c50e5d99743fff920cec4cd49dc3ca55928caab7d203921fd08a6cd5e26652
font_01_sfnt_off00007e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0D 10496 bytes
SHA-256: c5806e121f110b5d4be4866af53a364fbe949812e7278e2d1c010bd85c4993d3

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