Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f51baa00225ec45…

MALICIOUS

PDF

39.7 KB Created: 2020-07-28 15:58:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb9ef68df0a34ca334c475c16cf4ebf9 SHA-1: a6efe3f53516c3e9ffb5c9d63388d87603ea5db9 SHA-256: 8f51baa00225ec4576f3554890398072e39c751e76881bea71f67424e2badebc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous links hosted on Shopify, suggesting an attempt to obscure the final malicious destination. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of a malicious redirector and a link farm strongly suggests 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=kaladoshas+nipaseko+chance In PDF document text
    • http://files.pocahontaslives.com/uploads/1/3/0/7/130739517/20f166e.pdfIn PDF document text
    • http://files.ahenneberry.com/uploads/1/3/1/0/131070485/cd5d53e824f86.pdfIn PDF document text
    • http://files.cnnfarm.com/uploads/1/3/1/4/131453194/61d69602190.pdfIn PDF document text
    • http://files.thrivingrelationshipslab.com/uploads/1/3/0/8/130873769/babulogaj.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/1/0431/4346/3074/files/vipazabefibigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/77149802432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7941/7504/files/pufesezisofop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6065/8333/files/61728175783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5842/files/lilepopedino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6481/1927/files/65696743802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2476/1507/files/74547811821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3129/7185/files/jovizexasudusixuwofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/13100118738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1792/7837/files/84058165048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/wejewupopibadil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/79166994891.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 2

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_off00005e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E52 4804 bytes
SHA-256: bd503c261b3662faa7f722e81d670dd6af8ac7222c6886a77c2066da9cc9ddc2
font_01_sfnt_off00006e8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8F 10368 bytes
SHA-256: 755160ce35b9cd2914af315c5f8f8b6903259587c2f7a0d0264df843a9449484

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