Malicious PDF — malware analysis report

Static analysis result for SHA-256 f16a6cee4e443306…

MALICIOUS

PDF

43.2 KB Created: 2020-10-03 13:01:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: e6b78c613c8de649f71ae6329f679d83 SHA-1: c62b347af5c81c86b392030c44ca116d0bbf39e8 SHA-256: f16a6cee4e443306e04990cc4a7c927f239dadefd9485a91b7874f664c11c4bd
184 Risk Score

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://gettraff.ru/strik?keyword=the+power+of+your+subconscious+mind.pdf In PDF document text
    • http://filodofo.nekopalace.net/uploads/1/3/0/9/130969627/13c15996b9c4c.pdfIn PDF document text
    • http://files.christine-psychic.com/uploads/1/3/1/4/131412235/5087571.pdfIn PDF document text
    • http://files.irsoro-art.com/uploads/1/3/0/7/130775747/vajesiliti_nugasofusi_kobozojugokexug.pdfIn PDF document text
    • http://tewox.zerobytescomputers.com/uploads/1/3/0/7/130775734/nelazevugaxa.pdfIn PDF document text
    • http://files.neupexcompany.com/uploads/1/3/1/4/131437636/3ebefa.pdfIn PDF document text
    • http://vufinejep.sarahlacyphd.com/uploads/1/3/0/8/130874384/nevuxizafigupas.pdfIn PDF document text
    • http://files.dogclassinfo.com/uploads/1/3/0/7/130776393/5556039.pdfIn PDF document text
    • http://files.shelbyssweets.org/uploads/1/3/1/3/131381204/dulabapalavo_jududoj_dimuruba_jogilirigifal.pdfIn PDF document text
    • http://files.pdxfastpitch.com/uploads/1/3/0/7/130776499/rebapazemosediv.pdfIn PDF document text
    • http://files.mylesateliersdenine.com/uploads/1/3/1/4/131483209/kakulowo.pdfIn PDF document text
    • http://wawijo.larsenhistory.com/uploads/1/3/0/7/130739192/wibomumobog.pdfIn PDF document text
    • http://files.notesinthemargin.co.uk/uploads/1/3/1/4/131453498/fcdbfccb43.pdfIn PDF document text
    • http://files.dramaaroundtheglobe.com/uploads/1/3/0/9/130969761/4681863.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/27694c2a-bd9c-4d32-9984-8c5e9ebf1dcc/gudasepifizejamuditodefuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d0a840f-192c-456d-8ab1-72325a7b5d33/kepevizawegawelowuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d8ef062-5107-46ff-a576-153a6829462d/kapotagorijenew.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_off0000692e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x692E 5468 bytes
SHA-256: 97931078c55716a6ee923277d66c4c59568da3f91c33fa46c779b66aa78f893e
font_01_sfnt_off00007bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB6 10604 bytes
SHA-256: 6080f879982993bbf9e1cd27a7bf40df98a749e5b2752e171536362b3d025e4e