Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb8094d26036541a…

MALICIOUS

PDF

51.7 KB Created: 2020-07-30 13:27:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d3fb019936bd28ea3c5e16a31ad6775b SHA-1: 4915e2beb54ad1295154395de8f3276c6bc1e2e2 SHA-256: bb8094d26036541ab377009ddfd7dfc392c8408c242af3ca9fff269875266d90
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on various domains, including cdn.shopify.com. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com'. The ML classifier also strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, preventing a clear understanding of its direct lure, but the link farm and redirector strongly suggest a phishing or malware distribution attempt.

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.com/pify?keyword=birdlike+freddie+hubbard+pdf In PDF document text
    • http://files.liatelbling.com/uploads/1/3/2/6/132682639/puzam_pewedod.pdfIn PDF document text
    • http://files.frankpaur.com/uploads/1/3/0/8/130874139/gulorerijolen-relulawazol.pdfIn PDF document text
    • http://files.nedlerpalaz.com/uploads/1/3/1/4/131454692/gesavar.pdfIn PDF document text
    • http://files.bobericphotography.com/uploads/1/3/1/3/131398473/wiwolorirenanavig.pdfIn PDF document text
    • http://files.darkrisingseries.com/uploads/1/3/0/7/130739233/2182702.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/1/0431/9805/4558/files/derero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/puzatanowurutewezar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2292/files/71279196161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9469/5329/files/59108617731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4196/4710/files/47698857111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4727/3116/files/63799996123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/50951419367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6641/7571/files/65216066893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7541/2902/files/27048324408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9647/1707/files/pilob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/24633679908.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000082a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A4 4788 bytes
SHA-256: b2bfd4f3495fb20db60dcf759359d5aa3199faccf976885e8679ef53d0a40380
font_01_sfnt_off000092ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92EC 15020 bytes
SHA-256: 0afd19750fb5ce90bb867800d3d175194f1ef77b7aaa2945d04fd6be2e768620