Malicious PDF — malware analysis report

Static analysis result for SHA-256 5305f065025f4c63…

MALICIOUS

PDF

72.9 KB Created: 2021-02-17 01:41:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c9fd03d60e21aeb1d0e4b428d2ed1a2a SHA-1: a2102371b3c4b909bc4dfbfa1d109038e7ab8936 SHA-256: 5305f065025f4c63727549fc2f31867b4f59002366590ec478b6599ee5f5dbc6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://jottigo.ru/wix?keyword=woods+timer+50015+manual PDF link annotation
    • https://cdn.sqhk.co/xixujipum/JS6ggTQ/bow_archery_3d_shooting_near_me.pdfIn PDF document text
    • https://wudizabilizone.weebly.com/uploads/1/3/4/7/134745746/1936775.pdfIn PDF document text
    • https://kikuwigew.weebly.com/uploads/1/3/1/4/131407235/298449.pdfIn PDF document text
    • https://cdn.sqhk.co/velabolo/f1jaPjV/monerijanixe.pdfIn PDF document text
    • https://nidabiweni.weebly.com/uploads/1/3/4/8/134865500/6504731.pdfIn PDF document text
    • https://pitalozel.weebly.com/uploads/1/3/1/3/131384414/c1af86b645c.pdfIn PDF document text
    • https://nopetozu.weebly.com/uploads/1/3/4/5/134507327/1431354.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501229/normal_5fe00dd7754cc.pdfIn PDF document text
    • https://rusudunan.weebly.com/uploads/1/3/2/6/132681855/jekemexupewupo-popalul-nujiwivip-xinejikuku.pdfIn PDF document text
    • http://lokogosomezik.iblogger.org/90093132782.pdfIn PDF document text
    • https://cdn.sqhk.co/tujuvemevo/77YJIjj/snake_identification_central_florida.pdfIn PDF document text
    • https://nisivijuwowog.weebly.com/uploads/1/3/0/8/130813757/5117307.pdfIn PDF document text
    • https://putoluvutawubu.weebly.com/uploads/1/3/1/4/131437806/mewebapazatonud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412592/normal_5fd624ec5402a.pdfIn PDF document text
    • https://cdn.sqhk.co/kogujipubap/VjeibQu/temulax.pdfIn PDF document text
    • https://xudujebu.weebly.com/uploads/1/3/6/0/136090205/tipuro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391326/normal_5fe8ff6433749.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462376/normal_5fe1916b3c5ec.pdfIn PDF document text
    • https://cdn.sqhk.co/vedasukuki/jBqjghc/zudewaluvutokesuvafufuler.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e1fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FC 5300 bytes
SHA-256: a60c58387b1a934939b0877eb9833b607adb377a5dc17fca6e8a0750929d3756
font_01_sfnt_off0000f3fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FD 10112 bytes
SHA-256: 2d6b0311f9864740c0ecca26a4afc2b37ac674846ba0dcea2acbb7a66b5a94cc