Malicious PDF — malware analysis report

Static analysis result for SHA-256 df5e5f016f4f77c2…

MALICIOUS

PDF

43.8 KB Created: 2020-09-15 21:14:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c14be27cef92e35a5cd19fc5265aa329 SHA-1: 4b75d17a88eaa8357887747b67e560964bea2fa5 SHA-256: df5e5f016f4f77c2bb901ad89a73853fd7e5d4963d40867977e24faca1aecbfe
184 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. One prominent link, 'https://ttraff.link/pify?keyword=kitchen+nightmares+blackberry%2527s+mouse', redirects to potentially malicious infrastructure. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous PDF links indicates a coordinated effort to drive traffic to external sites.

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/pify?keyword=kitchen+nightmares+blackberry%2527s+mouse In PDF document text
    • http://files.teachingsofisis.com/uploads/1/3/0/7/130775734/6470989.pdfIn PDF document text
    • http://files.alhasoob.co.uk/uploads/1/3/2/6/132696015/2388652.pdfIn PDF document text
    • http://files.unitashonor.org/uploads/1/3/0/8/130814205/waxaji.pdfIn PDF document text
    • http://files.michaeldepore.com/uploads/1/3/1/6/131607404/fiwivuzonodakax.pdfIn PDF document text
    • http://dasomemiw.mdlashesllc.com/uploads/1/3/2/7/132741508/xevekebem_suwurediju.pdfIn PDF document text
    • http://gaviliso.colganscattle.com/uploads/1/3/2/8/132814930/0cb19c8f8c.pdfIn PDF document text
    • http://files.larryssportsexchange.com/uploads/1/3/0/8/130874128/folerezome.pdfIn PDF document text
    • http://tijex.augustiniana.net/uploads/1/3/2/3/132303307/e08d62be5d7.pdfIn PDF document text
    • http://buguka.multifloraplants.com/uploads/1/3/0/8/130873982/netazusetotitak_timokope_ronoleno.pdfIn PDF document text
    • http://files.cairnsclassroom.com/uploads/1/3/0/8/130814596/setexopejufe.pdfIn PDF document text
    • http://watok.artisanhandfood.com/uploads/1/3/2/7/132712336/jetuliwamebu_jevotojig_naxuposa.pdfIn PDF document text
    • http://xuxoses.bgcjcga.org/uploads/1/3/0/7/130776088/8395767.pdfIn PDF document text
    • http://xegugu.clarlennursery.org/uploads/1/3/1/4/131453329/zikebumawusagep_memaje_xemoras_rafunazorug.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/1/0451/0262/9016/files/harcourt_grammar_practice_book_grade_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6271/2727/files/65915769670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3491/8558/files/wopusijokubotugilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3273/0017/files/png_interlaced_or_not.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8167/8494/files/24791697444.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF8 5524 bytes
SHA-256: 59a0b288bff4e18418b605417a8341a3208ca8ec19714137de79878e5601e898
font_01_sfnt_off00007da5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA5 10616 bytes
SHA-256: ac42cff061ebd520a9f3067c475cb12ea76efc2890ad1a7a1a7ad9e568e06f88