Malicious PDF — malware analysis report

Static analysis result for SHA-256 9942b431cd9f1bf2…

MALICIOUS

PDF

42.0 KB Created: 2020-10-26 02:11:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 2f7deb0c2e37ef415fa6878d03b3ad9c SHA-1: 4a1b91f50f468cf44fee3956e8b65c0b58781475 SHA-256: 9942b431cd9f1bf26fff97d18e512e0675eb291f9cc46652417cc3c50e1f44c0
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://ttraff.link/pify?keyword=guidelines+for+anticoagulation+in+cancer+patients In PDF document text
    • https://xuwudavalibabiv.weebly.com/uploads/1/3/4/3/134321130/jekutebewomizu.pdfIn PDF document text
    • https://ritewelikuwu.weebly.com/uploads/1/3/4/4/134493798/fapubopesewebalewub.pdfIn PDF document text
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/migerolam_zapoxegowokid.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/7640215.pdfIn PDF document text
    • https://fubomagasikeka.weebly.com/uploads/1/3/4/4/134474343/niligozejo_xatosotupizitax_dinaxejavazava.pdfIn PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/kuvikojugiz.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/4e62bca4882baf.pdfIn PDF document text
    • https://rojumiladikeju.weebly.com/uploads/1/3/4/3/134315163/1919049.pdfIn PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/3606590.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/tizozalomafov_mujodi_rupadumibe_relap.pdfIn PDF document text
    • https://nikoxutaju.weebly.com/uploads/1/3/1/3/131378952/kibewifitodi.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/aa92d.pdfIn PDF document text
    • https://kizekusoviwo.weebly.com/uploads/1/3/1/4/131453028/famefoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000645a.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000645a.bin)
    • https://cdn.shopify.com/s/files/1/0492/3136/4252/files/guninemugavajawoxelalagep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8494/6850/files/jamewag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1392/9630/files/solving_radical_equations_with_cube_roots_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/4699/3557/files/2061609644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1465/1559/files/mizedegi.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 extracted file (font_00_sfnt_off0000645a.bin)

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_off0000645a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645A 5352 bytes
SHA-256: 1d05b09f87b6c969decfc54593883cc9b417e758c6fa8dae5cae3b8b85339495
font_01_sfnt_off0000769b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x769B 10652 bytes
SHA-256: deaefd996294843d738fb514fea790898ec295689fac7ae68ff76dd0de8c68a8

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