Malicious PDF — malware analysis report

Static analysis result for SHA-256 94fef76c1ac67dff…

MALICIOUS

PDF

70.8 KB Created: 2021-02-28 04:52:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1ffa01c4b6df8c9f74bea888a3004dab SHA-1: f1a3809ab2dfa6b95fb32ac3a465fa4783791e93 SHA-256: 94fef76c1ac67dffc30b196667540a550ab1ab6191f91d9296371124879f40af
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/wix?keyword=subway+surfers+generator+no+verification PDF link annotation
    • http://kadanijojabuf.mywebcommunity.org/soft_vs_hard_news.pdfIn PDF document text
    • https://xopigitit.weebly.com/uploads/1/3/4/3/134339451/6924039.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452593/normal_600a1990db93a.pdfIn PDF document text
    • http://foodguideblog.com/xonivexuka8ohn4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387711/normal_5fc6ae3091dc2.pdfIn PDF document text
    • http://craftsmansmetics.com/99034779380szmaa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386086/normal_601b30b7ad500.pdfIn PDF document text
    • https://ruzutemeba.weebly.com/uploads/1/3/2/6/132681300/ruxuv_letulokili_majobija.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373519/normal_5fdc74c10cd3c.pdfIn PDF document text
    • http://study-english-04.space/85461431003i079z.pdfIn PDF document text
    • http://musc-media.xyz/the_use_of_anointing_oil7uh8p.pdfIn PDF document text
    • http://rolapisi.scienceontheweb.net/hp_officejet_6500a_plus_driver_windows_10_64_bit.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/fidobakipivogit/when_cooking_rice_what_is_the_ratio_of_rice_to_water.pdfIn PDF document text
    • http://nabenejajoko.myartsonline.com/dillon_650_toolhead_stand.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_off0000d80e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD80E 5516 bytes
SHA-256: 5bbf7bb7730dcf05a7cb15eca13ca4ba7e041c25f35677cbdd55a27f887150d5
font_01_sfnt_off0000eb07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB07 10268 bytes
SHA-256: d8c6dc9e90f5b03f868947ce59d9351f2b79ebe88172d3f2559b458b229837cc