Malicious PDF — malware analysis report

Static analysis result for SHA-256 193dd50cc8021944…

MALICIOUS

PDF

40.2 KB Created: 2020-08-12 23:07:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74634cfa47818b3446b29c1fee45b01f SHA-1: 01057871afe132f6bb47207faaae200f40300b2b SHA-256: 193dd50cc8021944a7b9bcad985ad5375a0ee6306a34b0bbee6b6fddfecfdec8
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector infrastructure identified as malicious. The document body, though obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect users to potentially harmful content, likely for phishing or malware distribution.

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/wb?keyword=xml%20schema%20pdf In PDF document text
    • http://files.tdcwebstercity.com/uploads/1/3/2/6/132682813/vukufa-dugolawi.pdfIn PDF document text
    • http://files.premiereemcee.com/uploads/1/3/1/6/131606159/874c247a10876.pdfIn PDF document text
    • http://files.fitnessfactory1.com/uploads/1/3/2/3/132303359/245713.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/1/0428/9835/8432/files/zorugeligix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/2634425908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0060/1504/files/nivon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/wemunikuvisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5769/3347/files/anatomy_of_an_earthquake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/jozanujenixanowotole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4396/3548/files/xarozoreg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/33949433274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6837/2632/files/2x72_belt_grinder_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2119/7724/files/2035950680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3121/5774/files/vawanuxigojunaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8095/files/1-_99_prayer_guide_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2568/6951/files/movufejivipon.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_off000057bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57BF 5276 bytes
SHA-256: d4985f674e5ec333e93cf303ac6ed45b25828dd2595b98b258d9c5afcc195bf9
font_01_sfnt_off0000698b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x698B 13560 bytes
SHA-256: 4adfdd0eae71229adcd53f2d8335f36483681b00a1530148b58df155ee11182e

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