Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdd7af0ffc66be32…

MALICIOUS

PDF

49.8 KB Created: 2020-08-09 03:44:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f54b4a97adb55e0140b759f9255ec71 SHA-1: 3a8f0173ca75cdbaf446075040a9e3d2501f3ede SHA-256: fdd7af0ffc66be32d3b27effe275c21530266cc3be9353381af08ff617857256
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 one identified as a known malicious redirector. The heuristic firings indicate a PDF link farm, suggesting the document's primary purpose is to distribute malicious links. No scripts were extracted from this sample, but the extensive link farm points towards a phishing or malware distribution 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.ru/pify?keyword=eloge+de+l+amour+alain+badiou+pdf In PDF document text
    • http://roteja.undeniabull.net/uploads/1/3/0/9/130968984/7775245.pdfIn PDF document text
    • http://files.robinhoopes.com/uploads/1/3/0/7/130739260/jubijom.pdfIn PDF document text
    • http://files.guillermoguareschi.com/uploads/1/3/1/3/131380847/7061705.pdfIn PDF document text
    • http://files.annapicklesharvey.com/uploads/1/3/0/7/130775590/6139294.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/1/0428/9835/8432/files/84113106953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30812088679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0089/7440/files/vifigimakiwezoxusixegez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/77261936266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7529/7689/files/20619014718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3906/4225/files/96651334596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5636/4709/files/print_borderless_pdf_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/futapinaxela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/parisibudipaxetiwori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9974/1596/files/xorisowakugani.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000697d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697D 5280 bytes
SHA-256: 83496210559c9f4dc0005051e0f086deb84a42887a2313087a5d9eef3cf587f7
font_01_sfnt_off00007b5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5C 10508 bytes
SHA-256: 62d44f8490999190b5562148d1147e68b7f2ae61752b261fb02386316ea975e4
font_02_sfnt_off00009f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F50 17828 bytes
SHA-256: 814273727ba4de2bbc83f93a69aab6ade5307df3f7d8f7c60d0924aea25f1c2f

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