Malicious PDF — malware analysis report

Static analysis result for SHA-256 934af09cb1046070…

MALICIOUS

PDF

36.9 KB Created: 2020-08-12 15:23:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a08aecea756820cd4f049ab7bb4357fe SHA-1: d880761b7fc48d9ddb5f976515a3ebce99917adf SHA-256: 934af09cb10460700d64f28dd01ca4aefe57d9a1166c9b4929d0c8664e2af415
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is a strong indicator of malicious intent. The document also exhibits characteristics of a PDF SEO link farm, with numerous links to external PDFs, many hosted on Shopify. The ML classifier also flagged this PDF with high confidence. The primary attack pattern involves luring the user to the malicious redirector, likely for subsequent phishing or malware delivery.

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=bar+louie+menu+pdf In PDF document text
    • http://files.claudiacait.com/uploads/1/3/1/4/131482828/tesugozisokiwom-revuluweri-kegexibipun-vevenubat.pdfIn PDF document text
    • http://lisuwe.exodusads.com/uploads/1/3/1/3/131383483/f4a65d47853e8cf.pdfIn PDF document text
    • http://files.bradleyhughesgolfforum.com/uploads/1/3/1/4/131409755/kafejato-giripisof-lulirifunexupu-dogetalita.pdfIn PDF document text
    • http://xuneb.srphotographymelbourne.com.au/uploads/1/3/0/7/130739919/1773941.pdfIn PDF document text
    • http://xibuko.witskenlandscaping.com/uploads/1/3/1/4/131438003/widoki.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/1/0437/1575/6181/files/install_virtualenv_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2417/8600/files/35476557077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4436/4710/files/6324266200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3355/8168/files/sobuxibiwaxoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/vekodazosilatetol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5679/8615/files/69276922821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7281/3211/files/3d_shapes_and_their_names.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fonufefijosogigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9636/7511/files/list_of_bible_stories_from_genesis_to_revelation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3000/3358/files/sijevawuxepebalojeritanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3436/1503/files/sofugolemuxutiloni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5110/0829/files/allahabad_state_university_ba_time_table_2020_download.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_off00005269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5269 5056 bytes
SHA-256: 73b7f7c8577cd26368e3a436489614d119c47d427c8f11a797bb13e6f64f3c5d
font_01_sfnt_off00006385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6385 10368 bytes
SHA-256: cf9b106302f366d2407dd82c3a9d2dc519c80bbad883aa3fcc69bd8dc14e10a9