Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fef777804a9362c…

MALICIOUS

PDF

49.6 KB Created: 2020-08-15 03:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0e7e536a71163bae29ca2e75ac1243f SHA-1: 7b73acb8f16cbf0e3896a5e8d1bf369cb35b05e9 SHA-256: 0fef777804a9362ce298a6fc91afbcc27e797c76f9205a66670fe9fcd96c4c56
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised as a salary slip. This is further supported by heuristics indicating a malicious redirector and a link farm. The embedded content, though obfuscated, contains the malicious URL, suggesting an attempt to download further payloads or redirect the user to a phishing site.

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=bulletin+de+salaire+2018+pdf In PDF document text
    • http://zirit.dorothyfreed.com/uploads/1/3/2/8/132814930/5736918.pdfIn PDF document text
    • http://files.nationalparks-list.com/uploads/1/3/1/6/131606069/7689536.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/1/0433/2371/9845/files/dogadoromo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8418/4728/files/nisavidixavixonukakoxavis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6202/4605/files/84282788417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7780/3931/files/72945298837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/veterinary_infectious_diseases_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27588499931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/81413314681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/voleb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/1292888945.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 2

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_off000073de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73DE 5604 bytes
SHA-256: 057092657f8eccb36df741d792eb5399e161976bc22a4f81f2583fb4f676a436
font_01_sfnt_off00008706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8706 16900 bytes
SHA-256: 04f601161397a9dbc6b5c202e188ab64038a112db0027e9e5943de614ac2aa26

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