Malicious PDF — malware analysis report

Static analysis result for SHA-256 66d2f53814a06429…

MALICIOUS

PDF

36.6 KB Created: 2020-08-15 01:39:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03a302240c1676a38acdcb4bec599631 SHA-1: a374c91eac5a6a09099c7affd6bff043f181816a SHA-256: 66d2f53814a06429e70d921f771ac1f9e0011866492eefb5cc6cd4b86b9d0d4b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body itself contains a link to 'https://ttraff.cc/pify?keyword=gauteng+7+day+weather+report', which is likely a lure to trick users into clicking on a malicious URL. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=gauteng+7+day+weather+report In PDF document text
    • http://mobomixe.stevehpowell.com/uploads/1/3/0/7/130775126/ginisubum-milovovud-wawenojejisu.pdfIn PDF document text
    • http://files.prospecthill-omaha.org/uploads/1/3/0/7/130739991/gedevijapefatitinoj.pdfIn PDF document text
    • http://xoxelixid.kingturkeyday.net/uploads/1/3/1/8/131856161/kanupas.pdfIn PDF document text
    • http://xubavuwur.ebbtidewellness.com/uploads/1/3/2/6/132680813/tigopojixifeso.pdfIn PDF document text
    • http://files.shockersbaseball.net/uploads/1/3/2/7/132740536/b2c32f042.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/1/0450/2038/1342/files/paradise_lost_book_9_modern_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1802/5117/files/landscape_archaeology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6219/0489/files/75324488668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7994/2812/files/gulibamitiwekimapexidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2286/7880/files/57777098448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3958/0575/files/pofezepokix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3180/4574/files/easter_event_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1837/0728/files/tozusumexigenefep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/669297692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8575/8628/files/90720845607.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
🗂 Part of campaign: achschoral.com 4 samples

Related samples 3

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_off00004447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4447 5316 bytes
SHA-256: bae076ca9abc072c29e5664c426d912e9dfa5c65f0894e64f2dc7c4a5e6fe6db
font_01_sfnt_off00005675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5675 14420 bytes
SHA-256: 223128e5530ded38e331b5cced58a030deb08678fdd576fa52fcc8c2b56680d2

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