Malicious PDF — malware analysis report

Static analysis result for SHA-256 975fffac7c85ae91…

MALICIOUS

PDF

71.7 KB Created: 2020-08-31 03:28:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1bc9017f28cc7e2e7e88458c262ba77e SHA-1: 725f536d348817dc57ef96846e5bfbe623a800cd SHA-256: 975fffac7c85ae91ecea845d221a98ddd0d83c8024da7c7010ea605195dcffa4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment 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, indicating a large number of external links, many hosted on cdn.shopify.com. The ML classifier also strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a malicious site.

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/wix?keyword=the+faithful+executioner+pdf In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/0c41e7_71b784acffa1488fbb474907d3c6dacd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/efb3f0_e33167ca273c4ab795682392e29b2569.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_e0ac459034d44cfb887ca47771c862cd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/kujurojelawavavowimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3880/8991/files/kovanide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2817/5265/files/rizubuwiguzuvesud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8481/5259/files/catheter_related_bloodstream_infection.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4981/0080/files/52156829670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2276/8538/files/divisoria_shopping_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/anodizing_stainless_steel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3547/5624/files/kegajorexiduronokagapuxo.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

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_off0000c5a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5A1 5080 bytes
SHA-256: 4a321ec2273f6d0002a0ed05eb7d20d867f9210db5640fdf6ba1550ebdf0603d
font_01_sfnt_off0000d6df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6DF 10704 bytes
SHA-256: c87b055fe9cc0d8d76504c5f43ce54ed470a351cc9d6bd574f94bc4b27ba214c
font_02_sfnt_off0000fbb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB8 16452 bytes
SHA-256: dfeebb44cf16d337e82d4774cb181783b8bf2674c4649c62238462e69ef025ec

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