Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbcd6c6be99faba9…

MALICIOUS

PDF

43.1 KB Created: 2020-08-18 16:10:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc88f55746b0351cb9eed75a14f8decd SHA-1: ee5f0d9d3b3c9a7da77c7f7c8f25e9bebcf07f59 SHA-256: fbcd6c6be99faba94496d24c9707a94eb804183feef03d883ce49a4519f487ab
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The primary lure appears to be a PDF download, as indicated by the document body and the embedded URLs. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK strongly suggests that clicking the embedded link will lead to malicious content.

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=blindspot+hidden+biases+of+good+people+pdf In PDF document text
    • http://files.doublecreekfarm.net/uploads/1/3/0/9/130969656/gukemuxigim_jovobopufunero_jedugoluzavok_pubida.pdfIn PDF document text
    • http://files.bestofthewestmoving.com/uploads/1/3/0/7/130776864/1905575.pdfIn PDF document text
    • http://fokosewe.tiffanytucker.us/uploads/1/3/0/8/130874330/bafujemopufus_pejaxodabikugoj_zezakabuvekekaj.pdfIn PDF document text
    • http://xudon.carolinabbqnewland.com/uploads/1/3/1/3/131398440/vubavuwipigas.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/1/0427/9628/6111/files/xiwexufuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3380/5471/files/wiravejabuliromifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4193/7818/files/badowiwozazizedukol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9875/0629/files/vabibakejojugezoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2036/9567/files/grade_7_math_review_ontario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7131/5876/files/74927589996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3139/5478/files/81254872555.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 4

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_off00006b72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B72 5396 bytes
SHA-256: 0a89471371302f53cd01ef948d56bfb88a1df0655c4efa7b88e777bbfd66e991
font_01_sfnt_off00007dc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC2 9852 bytes
SHA-256: cfd72c85c70f8487ea58e3c0cf3f95d59c3f6ca25c13db54dc86ede7666eafbb

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