Malicious PDF — malware analysis report

Static analysis result for SHA-256 d887601c2729f442…

MALICIOUS

PDF

45.0 KB Created: 2020-09-11 21:24:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6821009bb84ca95eeddba57c95e2453e SHA-1: 366b6dc6265c21b3c6dea8ca158dfb36d5790c77 SHA-256: d887601c2729f442d73f46f10a3d553185a91b7e64921a3e5a378a150d1015e5
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 heuristic specifically identifying it as a PDF link farm. One of the embedded URLs, 'https://ttraff.link/pify?keyword=falz+brother%2527+s+keeper+video', is flagged as a known malicious redirector. The document body appears to be malformed or obfuscated, but the presence of the malicious redirector and the link farm strongly suggest an attempt to lure users to malicious content or for SEO manipulation.

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.link/pify?keyword=falz+brother%2527+s+keeper+video In PDF document text
    • http://files.completedentistrystudio.com/uploads/1/3/0/7/130739525/pikepefovoge.pdfIn PDF document text
    • http://files.cyclonecompanyevhs.com/uploads/1/3/0/7/130738559/607666fce99b37a.pdfIn PDF document text
    • http://pajefo.nowwwriters.ca/uploads/1/3/0/7/130739278/lofovoraza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static.usrfiles.com/ugd/9ea91e_45de40db366344f1a8d1ad8e5522fe22.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_31a8c369cba9457ca7d3468049512af9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/09c3c7_a2f5da6918bc45a0b60134239c362eba.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4c3d6a_ddb038a4c43040eaa38b27981ebf0e17.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/02af14_50c57e286c9549b8b80b9c268727c71b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3b6424_a77a6a7b866e4102aa5cff2a496b0081.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/02631b_e8f10f842ce04176904e5a9f319f0e59.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/67f5f7_09c0c3fbe2e74b03b8e03f93ad342d39.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6908d7_3f8f6127280647648d6c8bccdb85751b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_3613a9d2513a4ce6bbefef911945bafe.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/07625c_3211bb78404346f1ab8718658de450d6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1df9ea_d2c8f4bfdb364bac930113dac5b4fdb9.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6593 5032 bytes
SHA-256: 225da2fa5b841e889a55dc5df81537b98709a154e8ef1e5a0bc297706628956f
font_01_sfnt_off000076d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D3 10024 bytes
SHA-256: 4c81b9243f3a599d5df41769c641ae0ac413a831228c30ba31bc119d23db71bd
font_02_sfnt_off00009923.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9923 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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