Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a67221e2a5203c…

MALICIOUS

PDF

52.9 KB Created: 2020-08-11 10:21:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0102663e9c16cefbb254af2cfd64b57 SHA-1: 0925014e9e3ecbf3f1b165a0cb3081be669d2c51 SHA-256: 01a67221e2a5203ce27046372a73173322abe0503ea3d0f7af3d536dacc9c8b4
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 service, suggesting a link farm or phishing lure. The primary malicious URL identified is https://ttraff.ru/wb?keyword=surface%20area%20worksheet%20tes, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, likely intended to appear legitimate. The ML classifier 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.ru/wb?keyword=surface%20area%20worksheet%20tes In PDF document text
    • http://lazet.fusionlandscapedesign.co.nz/uploads/1/3/1/0/131069839/6645124.pdfIn PDF document text
    • http://limuku.dylanbeddow.com/uploads/1/3/0/7/130740025/6473540.pdfIn PDF document text
    • http://files.timeless-imagesphotography.com/uploads/1/3/0/9/130969963/68cab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5271/files/classical_mechanics_taylor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2171/2034/files/marlin_owners_forum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2330/9727/files/birebapejonetirujubov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9137/7828/files/lonomujoxufepazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7002/files/lusixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86562581376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3004/4062/files/60261260036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1090/8572/files/zumokisopat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3666/3208/files/tilutodakazememodibopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1297/2963/files/sajikebomuxitosejewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9985/7823/files/53904485931.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 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_off0000842a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842A 4924 bytes
SHA-256: 66c1726676b829096f4d07c17d57e45c55e4ea68598f01513cacbf27cd52f095
font_01_sfnt_off00009505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9505 10576 bytes
SHA-256: 26e677badf598d5f4b311327fc1114a792a05c508389900b995a13fba105957b
font_02_sfnt_off0000b8fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8FD 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.