Malicious PDF — malware analysis report

Static analysis result for SHA-256 f617b21fed2d9c7b…

MALICIOUS

PDF

41.8 KB Created: 2020-08-25 04:03:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd8177a6d4fa57f862627816a59f4256 SHA-1: 1e95f3c8a10f60879cec5b76275faec8193609a5 SHA-256: f617b21fed2d9c7b9414bba5ac6897dcbbe0fc7782df491a55276a0dd0f5197c
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'unclaimed property maryland reporting' and the malicious redirector URL. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, suggesting a link farm or distribution mechanism. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of this PDF.

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=unclaimed+property+maryland+reporting In PDF document text
    • http://sofupo.omahabeadaffair.com/uploads/1/3/0/7/130738764/zawogesomogiwasaramo.pdfIn PDF document text
    • http://bemajirod.belizesportsoutreach.com/uploads/1/3/0/7/130775166/fapomi.pdfIn PDF document text
    • http://kapapajef.first5460.com/uploads/1/3/1/4/131406427/lebupov-faganelani.pdfIn PDF document text
    • http://files.noahsarkquarryville.com/uploads/1/3/1/3/131384255/eec29089a.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/1/0437/1172/5723/files/gegamakukekobakolujexedij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2857/8467/files/python_string_split.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4705/9607/files/88067651870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nexunalazuzifoginiwaboliz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6224/7067/files/30118597022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8862/5302/files/nekikubilatiwuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1004/6621/files/bedside_clinical_examination.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2084/5210/files/chilis_application_form.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_off00006408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6408 5308 bytes
SHA-256: b29e0c74acceb691c8f42335282065c9bada28d672b49abd2596cb686fd1725a
font_01_sfnt_off000075fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75FC 10648 bytes
SHA-256: fd252aa2849f8511d796d6d0e89793c62775dbf205b0055f0a326acbdef24994

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