Malicious PDF — malware analysis report

Static analysis result for SHA-256 a48f2ec40d006222…

MALICIOUS

PDF

40.2 KB Created: 2020-08-18 18:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac1de781ecdc9c1cf09e5f57d1ed611d SHA-1: f52d51c9073821e4c1a41c0461ce6cb70b1204d9 SHA-256: a48f2ec40d006222353e7f6abd3e7931a094bee370542d2687e5f318eb677908
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a "workers information sheet" lure. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains hosting PDF files. The primary malicious URL is 'https://ttraff.com/pify?keyword=workers+information+sheet+poea+sample', which likely serves as the initial stage for a phishing or malware delivery campaign.

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/pify?keyword=workers+information+sheet+poea+sample In PDF document text
    • http://xutulalu.uofduh.com/uploads/1/3/1/4/131406082/koroxigexoseruduk.pdfIn PDF document text
    • http://files.halfgodtactical.com/uploads/1/3/0/7/130775102/c6457.pdfIn PDF document text
    • http://files.walkshop.org/uploads/1/3/0/8/130873794/20b98a5.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/1/0428/9154/2681/files/womujilawemeluwokazalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6378/6137/files/kadufobifukimuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2214/0063/files/93288970904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9462/files/40210176783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/sefaxamekulibesiziv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5861/6733/files/34118280187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9806/2501/files/annualized_income_installment_method_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2508/4065/files/trane_xl824_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/68586342485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9437/6599/files/wuvebokakunawefasimilip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4767/3253/files/15104459498.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 5

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_off00005ee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE2 5216 bytes
SHA-256: 7b428ef3a808bba060094361665c23940ee853cd955df4db6833916c3444b3cc
font_01_sfnt_off00007085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7085 10884 bytes
SHA-256: ced738314028c9a4825d1c10b26f9ffc09670f61a34c3b9c6ee2e222388817db

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