Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a9d2ff40669e7a…

MALICIOUS

PDF

70.3 KB Created: 2021-02-17 00:51:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4d86006b614617ca880f033271eb2b3d SHA-1: 0bbe48b9b8bf886c1da82a6e2c0ba2f3a90a2df7 SHA-256: 14a9d2ff40669e7a7943942857912e9b2da7baaa4e07b7035e7d9d0623aa3a05
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jottigo.ru/wix?keyword=gba+apk+pokemon PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373788/normal_600b0f2379e7a.pdfIn PDF document text
    • https://buzikapafopix.weebly.com/uploads/1/3/4/3/134375334/d2ab4823097.pdfIn PDF document text
    • https://zigapugulila.weebly.com/uploads/1/3/0/7/130776078/nowadi-xizoruf.pdfIn PDF document text
    • https://cdn.sqhk.co/javeduner/g3O7Ige/small_business_loans_ohio.pdfIn PDF document text
    • https://gakutuzopekok.weebly.com/uploads/1/3/4/6/134605442/lesasojexaxanomekip.pdfIn PDF document text
    • https://bezubimuxidisa.weebly.com/uploads/1/3/1/4/131453869/6063296.pdfIn PDF document text
    • https://cdn.sqhk.co/tijinujul/FghjiQM/37386634981.pdfIn PDF document text
    • https://cdn.sqhk.co/zowipitilo/hjjeoih/college_hockey_shootout_rules.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444638/normal_5fc7eeefc1d10.pdfIn PDF document text
    • https://dojixevagix.weebly.com/uploads/1/3/2/6/132682303/gowisagumut.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369153/normal_5ff20242e09a0.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/dosalapasenow/zujosefepa.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/boy_girl_clipart.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/66403798947.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_off0000d837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD837 4892 bytes
SHA-256: e80e70e2d6ef5f5aa733c4647a5845097a699899c39ddc9b9f7e105fafba31b5
font_01_sfnt_off0000e8d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D5 10080 bytes
SHA-256: d875592125f9c56e1100d0e17d0b4e4814841534fd94a43cb5adf2211206562c

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