Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a55e01fb3ff3c96…

MALICIOUS

PDF

48.4 KB Created: 2020-09-10 04:06:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd223f25585ee5427e0faab3c944e8e6 SHA-1: 35123d1b9afa1329b532bdd58dca4ba6d2e19864 SHA-256: 7a55e01fb3ff3c966149a5f6f518b367fcecf0556a3562619de9892f125a954f
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure for a "fitness calendar template free". The ML classifier strongly indicates maliciousness, and the presence of numerous PDF links points towards a link farm or phishing 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.club/wix?keyword=fitness+calendar+template+free In PDF document text
    • http://xatefow.sandytoessociety.org/uploads/1/3/0/7/130776760/594ac.pdfIn PDF document text
    • http://files.cptoffice.com/uploads/1/3/0/7/130775361/witukuwudabenido.pdfIn PDF document text
    • http://files.swbl.ca/uploads/1/3/0/9/130969791/tugejun.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/1/0427/7361/0663/files/jizibilumitarasukoxik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6695/7722/files/94202445279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2458/8701/files/common_core_math_2nd_grade_addition_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8130/9085/files/duplicate_rows_in_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/7234/8309/files/mulezomemevilaziw.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/479fa9_fab809a2da5949079e5df95c2fe00e91.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f6a907_118f75b6e2ad4af8880279db5f9dbea3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4117a9_a6bf409b47524454b10fb09a96917a72.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/05900a_ddca5c1eca6f4103bc53b702e527fe35.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 6

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_off00007f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F16 5256 bytes
SHA-256: 0be61050922f4731a5204348d25179614a6fbe756c4f697582829db041edc48f
font_01_sfnt_off000090e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E2 10648 bytes
SHA-256: 40a55b111c8c21d07f59d7fb1274adb8df24c05ca3781f5dbe15442712573a65

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