Malicious PDF — malware analysis report

Static analysis result for SHA-256 d730a7e78f87b85c…

MALICIOUS

PDF

42.9 KB Created: 2020-08-25 17:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01fab93e783f348fd386a7e8ed6bc773 SHA-1: efdd9935d2379d8051644533d62e2706c17bffba SHA-256: d730a7e78f87b85c5e0c346b95e94d516c95ef14061d0f0c5d88005b236af91f
194 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.cc. The document body, though partially corrupted, contains the same text as the URL parameter, suggesting a social engineering lure to click on the malicious link. No scripts were extracted, but the primary attack vector appears to be directing users to malicious infrastructure.

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=many+thanks+in+advance+for+your+answer In PDF document text
    • http://files.frachetti.com/uploads/1/3/0/7/130738825/linizufex.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/1/0437/8044/0215/files/www_nod_321_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5700/5222/files/60136555543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/69353783950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7684/5728/files/carfax_free_report_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/xigavotaduluvirorupeser.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/basic_english_grammar_exercises_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7400/8741/files/litulizaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7205/9547/files/45320134908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/collision_reporting_centre_waterloo_ontario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2873/3352/files/18488579704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5463/6949/files/vasafagubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/repanipisaxogevowesani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/15778245159.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A34 5400 bytes
SHA-256: f5352c376f7734a4c655282750b2db819dbd3c120ba5a3b57746297ad6a84066
font_01_sfnt_off00006c98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C98 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off00007525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7525 15468 bytes
SHA-256: cd9cd780e1abee9608416c5c5bcead310fdcacfbe3fafe97026c211bff0bd859

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