Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2fa0f96c666a1c5…

MALICIOUS

PDF

51.2 KB Created: 2020-08-04 00:07:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fddeefbf6caba257ae2ff0a5d966241 SHA-1: 0107b1d5a4efac716c623aa0fa38765316a9c31b SHA-256: b2fa0f96c666a1c5cd45eb647797b096b12129c9a9003b30b48847d7ab546f5b
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. This indicates the primary purpose is to redirect the user to a malicious site, likely for further exploitation or phishing. The ML classifier also strongly flagged this PDF as malicious.

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=astable+multivibrator+555+timer+pdf In PDF document text
    • http://files.hilltaxis.co.uk/uploads/1/3/2/8/132814544/c9f648.pdfIn PDF document text
    • http://files.ncbbq4u.com/uploads/1/3/0/7/130775853/7460552.pdfIn PDF document text
    • http://files.ultimatefitnessbootcamp.org/uploads/1/3/0/7/130740012/d6c4f65c0c2.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/1/0431/5794/6522/files/74635938261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8548/6485/files/xumifefos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/34365073460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6554/8708/files/10835657657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3313/3209/files/naragavulabibizezefokivaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5666/7551/files/27615328809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/najupazumofuzebazur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/jimatedozorabebomotega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7762/3194/files/8667133704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3059/3186/files/beladisoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6894/7616/files/65221819418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5815/9006/files/xovepojofuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6241/8846/files/72343675224.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_off000089af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89AF 5500 bytes
SHA-256: 19b8946c4c47ba46eb0dd0cf9073a414372ec6b9407b2923fc7e1ebf0660247b
font_01_sfnt_off00009c54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C54 10248 bytes
SHA-256: d01cfdf1a0e815eca471f20546c92df4cbc14121644872e38d0fa6d8e5a29132

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