Malicious PDF — malware analysis report

Static analysis result for SHA-256 775acb839f8f7ed9…

MALICIOUS

PDF

59.6 KB Created: 2020-08-05 11:28:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8fd7aff72c310d189956e0c3d08086c4 SHA-1: d3d0f20dd3b2ff0797c81c93f0abb085f2a096d5 SHA-256: 775acb839f8f7ed9acb9b658cd7357bfe84634afc7d23ffaf9b439077161cd1b
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are part of a link farm designed to redirect users to potentially malicious sites, as indicated by the 'ttraff.cc' redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=midas+and+the+golden+touch+pdf', suggesting a lure for phishing or malware download. The presence of multiple PDF links and the ML classifier's high confidence further support its malicious nature.

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=midas+and+the+golden+touch+pdf In PDF document text
    • http://files.sensualtigerholisticarts.com/uploads/1/3/1/3/131380054/gexeg.pdfIn PDF document text
    • http://files.mendocinocommunitylibrary.org/uploads/1/3/0/9/130969775/ad7ac5e1a19.pdfIn PDF document text
    • http://files.themassageplacesp.com/uploads/1/3/0/7/130775528/6784262.pdfIn PDF document text
    • http://files.tasteandseebakery.org/uploads/1/3/1/4/131438079/0ee4594994754.pdfIn PDF document text
    • http://files.siphc.net/uploads/1/3/1/3/131380687/67493514202741.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/1/0430/3087/2215/files/donikogofoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2666/9987/files/44816342115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5967/5293/files/xotedokim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2926/5564/files/64600657808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29318048561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8361/9736/files/xejevowivop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7522/1142/files/26346484330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4499/5221/files/bodiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3861/2378/files/11815467638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2725/0850/files/maxibel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9651/3448/files/xefunuwe.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008f68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F68 5324 bytes
SHA-256: ef2d0e687416eb3898fe8168dafbe697e9df8a040bc867d8dbad6c9a4d366c1b
font_01_sfnt_off0000a193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA193 12632 bytes
SHA-256: caf1401e2955c2f334f6571fea630b4863fa7294c5ae06628710b0f2955068fe
font_02_sfnt_off0000cbc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC4 16204 bytes
SHA-256: c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449