Malicious PDF — malware analysis report

Static analysis result for SHA-256 a93cccc63b4e50be…

MALICIOUS

PDF

39.2 KB Created: 2020-08-03 20:58:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 24183410016e0c18e8005cad2f4c4bdd SHA-1: 91566083ceafd00b13d9791d5c6bdc9fac58cdf4 SHA-256: a93cccc63b4e50be81d56592ea4deb07d602d1211c153562fbea7a6b30c7ac74
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm designed for SEO manipulation. One of the primary links directs to a known malicious redirector, 'ttraff.cc', which is likely intended to lead users to malicious content. The ML classifier also strongly flagged this PDF as malicious. The document body itself is heavily obfuscated and contains the malicious redirector URL.

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.cc/pify?keyword=pdf+liberalismo+economico In PDF document text
    • http://files.uvoholicsanonymous.com/uploads/1/3/0/8/130874633/zejobujimikevogula.pdfIn PDF document text
    • http://files.snakities.com/uploads/1/3/2/6/132681482/mosovawetaga-zasun-botoxas.pdfIn PDF document text
    • http://files.webdevelopmentbuddy.com/uploads/1/3/0/8/130814874/5307760.pdfIn PDF document text
    • http://files.lmdupreez.com/uploads/1/3/0/8/130874126/a5c806674291.pdfIn PDF document text
    • http://files.impunity.site/uploads/1/3/1/3/131384424/gowosivarozanenulix.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/1/0431/6132/1634/files/tusazatobamixibefumer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1729/0407/files/seinfeld_season_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9117/3278/files/15029123936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/jinakisaxok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/viruxirekosarobavogerij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7631/3503/files/zuzusabuvexemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4186/6403/files/mysql_import_csv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0455/1590/files/zajavoperakuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3048/5915/files/50932773694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2771/6520/files/biwiwemip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8868/2916/files/pepefosowit.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 8

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_off00005e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E90 5308 bytes
SHA-256: ed29759129bcb13be35d51683dcda8d581c1a818820b3c238fc680d6e6cbe6e6
font_01_sfnt_off00007082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7082 9252 bytes
SHA-256: 95dc3de34b66dd16bd3a77d64f1c589272d1ce90c1f73825470ff80a04c1fa5c

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