Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7344daaaa60a912…

MALICIOUS

PDF

47.3 KB Created: 2020-11-08 13:51:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: b8d2b4b20969a42561f7e435345e2d29 SHA-1: c30b9ef3e95cf59ad4ada6ad417e8be74b128dbf SHA-256: b7344daaaa60a91268563a5dfe612f43552cfa4c07bef4e94626a60b68775bbe
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://traffking.ru/aws?keyword=briggs+and+stratton+electric+outboard In PDF document text
    • https://pudijubo.weebly.com/uploads/1/3/4/3/134311311/d31aa.pdfIn PDF document text
    • https://mabulibatelirip.weebly.com/uploads/1/3/4/5/134597637/duxenawevolojegevizu.pdfIn PDF document text
    • https://wojazaxu.weebly.com/uploads/1/3/4/5/134589930/151519.pdfIn PDF document text
    • https://zukezima.weebly.com/uploads/1/3/4/3/134345014/2c1df9cf9c8d.pdfIn PDF document text
    • https://delujopasetew.weebly.com/uploads/1/3/4/3/134399242/240d64.pdfIn PDF document text
    • https://wozagadukuwa.weebly.com/uploads/1/3/4/4/134483903/zebes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365549/normal_5f872cf7aaad4.pdfIn PDF document text
    • https://voxapinave.weebly.com/uploads/1/3/2/7/132740917/gaxabigenobu.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/vameg.pdfIn PDF document text
    • https://mekuxiwefajup.weebly.com/uploads/1/3/0/7/130739023/vudizo-xupiwasexakap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366359/normal_5f8a8149a7e04.pdfIn PDF document text
    • https://ralututoj.weebly.com/uploads/1/3/4/4/134457658/jibidetujawep.pdfIn PDF document text
    • https://junoxavod.weebly.com/uploads/1/3/1/3/131384771/390020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xakusineba/robert_cialdini_social_proof_influence.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_off00007821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7821 5296 bytes
SHA-256: d723351cb138c03e36af9052648531f635a0910c549b5015fbb967b19e5f967a
font_01_sfnt_off00008a2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2E 11220 bytes
SHA-256: d906da4b5b00b47bdd3547a6fca8d49dd95c889e4cf97e5b89a764d4a5e494bf

Open this report in the interactive analyzer, or submit your own file for analysis.