Malicious PDF — malware analysis report

Static analysis result for SHA-256 869550ac9ff0d6bb…

MALICIOUS

PDF

50.0 KB Created: 2020-09-01 13:01:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ede39c4aa8164afb1e77d15658e1571 SHA-1: 7ea2a9292ffbdbe215e57a67537dc81a21b71425 SHA-256: 869550ac9ff0d6bb1e5bd99ebda4142c4edc10e1bdf7277f97cd8ad9bb180104
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to redirector infrastructure. The primary malicious link, disguised as a contract template, leads to 'ttraff.com', a known malicious redirector. This suggests a phishing or scam attempt designed to lead users to potentially harmful content.

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=music+licensing+contract+template 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/09c3c7_53ea3b12ede44a4dbadf5d99d6579f33.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_321e63a406674f84b0232b4cc4073adf.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/eb5a6a_ba84cb819db2493a83f4dbc51b01b5fa.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_9457d1d0d431470e8844057789c5ded9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_c84418c1503d410ba113c80ac25457ed.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_af2a928ca80a46f1a13767b78b44bd9d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b65acf_a626f5a621534b0ea27397f9b1a6b37d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/54fa57_b37b8d98c2f34688853ff4747ed97ed4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c162b3_23f382da7b8e464d8b36afdd65a1d0c1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/271e65_b4cf1b122e0f4b82b953d184d93c3435.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/834936_bffc7ace13d44dc9b189735b1979925c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6203b9_1144a36e22594d08a9bd54a19458a6bf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/9702907022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5651/9585/files/gisutilefutobomaf.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000085bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85BF 5260 bytes
SHA-256: 3871d8bdd11290eec57a7680f6e26adb4dd6297efd31d8475e70c2573c3175ee
font_01_sfnt_off00009794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9794 10504 bytes
SHA-256: ab8cae99a162e83e80bd1906596d4aa2f58210fab4d8720f55ab39e2715fa1ef

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