Malicious PDF — malware analysis report

Static analysis result for SHA-256 e031581ae1e3982f…

MALICIOUS

PDF

44.1 KB Created: 2020-09-22 00:19:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b51f032e94f5d441df3353c2822a38e5 SHA-1: d579d80bd3ed928a19a8d441cef65d5f480291c9 SHA-256: e031581ae1e3982f842866d6a2434b194d10206a5a3ace7590c3ad3a8700e707
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to a URL related to 'flint river council camp cards'. Additionally, the PDF exhibits characteristics of a link farm, containing numerous external links, many of which point to unknown domains. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering via a malicious link embedded within the document.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wix?keyword=flint+river+council+camp+cards In PDF document text
    • http://fivufusum.mathkanection.com/uploads/1/3/0/7/130739353/kixaxepukugizase.pdfIn PDF document text
    • http://novima.ghqg.org/uploads/1/3/1/8/131856222/4727252.pdfIn PDF document text
    • http://files.rodmanplantation.com/uploads/1/3/1/6/131606563/5ed10910152152.pdfIn PDF document text
    • http://files.giaddiecreations.com/uploads/1/3/2/7/132740637/798466dd55e.pdfIn PDF document text
    • http://zulowolik.dancingravenstoneworks.com/uploads/1/3/1/4/131482952/40a731be2b9b3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e39b630d-bbb3-43e3-a61c-2207dabd7a8c.filesusr.com/ugd/49488e_6d434b735deb4df88487a0b07f7a88b9.pdf?index=trueIn PDF document text
    • https://ac7e4d20-8b9b-4d4e-a9da-05d70fd3d11f.filesusr.com/ugd/c1615c_39fb01984379481880a04ad2365412f0.pdf?index=trueIn PDF document text
    • https://d7e203b7-c25f-45d2-96a2-ea2acb17fb3b.filesusr.com/ugd/c4f63d_47006af118454a488cfe31590165c7c5.pdf?index=trueIn PDF document text
    • https://d2e33184-577e-4ab5-a0b5-88c0dfe3a50b.filesusr.com/ugd/95ea6b_a39b5304f3424cf9b72ae075d9c63da7.pdf?index=trueIn PDF document text
    • https://69abc2bb-e695-4772-ae0c-898c47a9b775.filesusr.com/ugd/ee6100_0fa615a4662b4e7e9f6bd708e7d4106c.pdf?index=trueIn PDF document text
    • https://4fdc9b7f-27c1-4f10-9773-aa6a7b3e9af6.filesusr.com/ugd/63d3ad_15849bcd84b7469c83288fb920d1180e.pdf?index=trueIn PDF document text
    • https://f760f22c-d01e-4031-b34f-d57c5bae1ae3.filesusr.com/ugd/58a813_88429dfa0f2c4ca29381d44337ea97e0.pdf?index=trueIn PDF document text
    • https://17dd6b2e-369d-43a0-94bc-ad122b82424d.filesusr.com/ugd/07625c_3f0618bd578a47cf9c1f7fdb9e29e815.pdf?index=trueIn PDF document text
    • https://d4fc203d-bf1d-41f8-a17b-49729ab1c57f.filesusr.com/ugd/bca722_cfb1e68d37524ee68c7b103ca132ef7e.pdf?index=trueIn 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_off00006bb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB0 5232 bytes
SHA-256: 1c60ae084eeb9384252ba26a28eb82c2f389d9b42e13e759afba8137abd70b35
font_01_sfnt_off00007d6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6C 11252 bytes
SHA-256: 8d8fbbd4a44708fd56f3d31817f1f26b22a31172f09c013cd367ff3eefde93fd

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