Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3bd5fdbd84a51f0…

MALICIOUS

PDF

41.6 KB Created: 2020-08-03 09:16:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3db76fb88baa2fc8677b5b35f6df218c SHA-1: e4a39080e15db3246eb24e8d71cb328754aa32d1 SHA-256: e3bd5fdbd84a51f035e605742d06b807b7580edf26bf32782ac84ddc299b7e56
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a large number of embedded links, a common technique for SEO poisoning or distributing malicious content. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=assonance+and+alliteration+are+different+types+of', is identified as a malicious redirector. The document body itself is heavily obfuscated and contains the same text as the malicious URL, suggesting it's part of a lure. No scripts were extracted, but the link farm and redirector strongly indicate a malicious intent to redirect users to harmful sites.

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=assonance+and+alliteration+are+different+types+of In PDF document text
    • http://files.tiffanyshocklee.com/uploads/1/3/0/7/130775109/6920fa5.pdfIn PDF document text
    • http://files.clearviewresort.com/uploads/1/3/2/6/132681150/kafutolenopibevu.pdfIn PDF document text
    • http://files.oceansideteachers.org/uploads/1/3/1/3/131383764/8383606.pdfIn PDF document text
    • http://files.oneburgh.com/uploads/1/3/1/6/131606642/8329858.pdfIn PDF document text
    • http://files.thatoneplaceintown.com/uploads/1/3/0/8/130814492/6963699.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/1/0437/2886/3397/files/28213890370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3401/0015/files/33035909236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4089/0262/files/dofej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5871/6055/files/51248865478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1111/3123/files/bufimabaxumaberi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7147/9713/files/ladawuxodowazowev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4531/3941/files/kibusizevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0660/7005/files/35819742550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/68054658604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/59365091296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9212/2536/files/61463388916.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_off000064bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BB 5240 bytes
SHA-256: 122c9626b4d357f0e21cd08d59df097756ed689dad4304daaa7fc1d332653e2c
font_01_sfnt_off000076ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76AB 10088 bytes
SHA-256: 44592a5728c5b3321318db03fb1dc02961231a0995a6739fd80db41263049e16

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