Malicious PDF — malware analysis report

Static analysis result for SHA-256 6399a98607ff41f5…

MALICIOUS

PDF

64.5 KB Created: 2020-12-20 05:56:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 396721b35ddde12e93953e98d3d6113b SHA-1: d380a2d606c4d215034475400ec9318d990877af SHA-256: 6399a98607ff41f585a2a41f1a2b2757c11c2f0db266fdd574363fb8d3a1657a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/wb?keyword=boomerang%20rubber%20application PDF link annotation
    • https://luxufaxunixepu.weebly.com/uploads/1/3/4/5/134584211/20b9b1a.pdfIn PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/7761085.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460233/normal_5fd89e6c7ac72.pdfIn PDF document text
    • https://gilasagajeradek.weebly.com/uploads/1/3/4/6/134632792/ef8fca.pdfIn PDF document text
    • https://nulokedebuzeb.weebly.com/uploads/1/3/4/3/134310318/lisajuzamiwelumuxira.pdfIn PDF document text
    • https://ginadilu.weebly.com/uploads/1/3/4/7/134768391/vulububisoniwixig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374024/normal_5f8c3c21574ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470687/normal_5fbebab053bcb.pdfIn PDF document text
    • https://tefitosuwit.weebly.com/uploads/1/3/4/4/134478986/vivok.pdfIn PDF document text
    • https://baxolelal.weebly.com/uploads/1/3/4/6/134625426/e7394c.pdfIn PDF document text
    • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/8595799.pdfIn PDF document text
    • https://werogevudabewox.weebly.com/uploads/1/3/4/8/134876313/pexabutaji.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/3b21f1fe-f8e3-4390-8689-5d549881e88a/ben_10_eye_guy_full_episode.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f491a797-472a-4ede-a168-5f7683e44225/jibizibewotoragoletixoro.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf0db9cb3b830a1a314b27/t/5fd01bd82f29925fbb42d446/1607474136876/zombie_vs_fruit_plants_free_download.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

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_off0000c146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC146 5264 bytes
SHA-256: 43333c542e187e5f4c346fe07febed3c5bcff5abc73a9e29fb07c5dbdcafe266
font_01_sfnt_off0000d31b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD31B 10096 bytes
SHA-256: c0d2a42ef0f4985ba672330c12a381b2c56a42609856a420cbb403314e56c321

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