Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d637f12b02c4577…

MALICIOUS

PDF

44.3 KB Created: 2020-08-06 10:37:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9020cecb32deb149c294be50718f551 SHA-1: 112f2499f095f3166aaf260ce8edf853a1948e74 SHA-256: 0d637f12b02c4577c6d5b53f548a6c42429b7bb660c9694fb8bc74ba296bdbca
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and redirects to known malicious infrastructure, indicating a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs and the document body suggest a lure for free downloads, which is a common tactic for distributing malware or conducting scams.

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=auto+diagnosis+service+and+repair+pdf In PDF document text
    • http://files.aplmuseumpasses.com/uploads/1/3/1/4/131406412/7724621.pdfIn PDF document text
    • http://files.catholicsinaldeburghandleiston.org/uploads/1/3/1/4/131406435/1528207.pdfIn PDF document text
    • http://files.charlesharveyauthor.com/uploads/1/3/1/4/131407767/b13c09.pdfIn PDF document text
    • http://files.plainbird.org/uploads/1/3/0/8/130813834/2fb9bb2.pdfIn PDF document text
    • http://files.ubersupplies.net/uploads/1/3/1/4/131410606/2734414.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/1/0431/7767/2868/files/kesamufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/xovix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5729/9097/files/mupizararefewur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5063/5162/files/dennis_rainey_preparing_for_marriage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4192/9886/files/sailing_out_jhene_aiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7138/1405/files/delufoboxanejefot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75278808376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6254/9910/files/4623761698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0276/9053/files/pro_tools_free_download_full_version_cracked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31968244380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/zaraxidazonofen.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
🗂 Part of campaign: aplmuseumpasses.com 3 samples

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_off00006e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E11 5340 bytes
SHA-256: 7c09ec629b2bafc791b804b16631b002920759d15e3f2daf7eff8971b5c91d8d
font_01_sfnt_off00008059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8059 10516 bytes
SHA-256: d32d46c8169efb30c6cf7dbc231cc0d4423be1ce9c0a8a24ba5c15ccaf2b9873

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