Malicious PDF — malware analysis report

Static analysis result for SHA-256 df9560362d4c9bfc…

MALICIOUS

PDF

70.0 KB Created: 2021-02-18 05:10:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 8381e4292d5d4b2dc627730d66f75524 SHA-1: 20e6f72eb7da737ad77f4c2ca15be2dd249f7906 SHA-256: df9560362d4c9bfce7a48f7bf4b3f576a1c38e0f33b19eeacbe5a625397d769b
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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 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://yafferge.ru/aws?utm_term=how+to+fix+a+toy+john+deere+gator In PDF document text
    • https://cdn.sqhk.co/ralapogifur/e8x2ibw/xipomavorejik.pdfIn PDF document text
    • https://cdn.sqhk.co/xojelumegasi/elYhigf/926687480.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391611/normal_601da8e2e619f.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuronufepu/6MjFhcZ/sales_management_jobs_in_maine.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445343/normal_600166dfb01fb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380403/normal_5fffc6452909f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495841/normal_601d149fa88a3.pdfIn PDF document text
    • https://cdn.sqhk.co/bupitagalir/nWfyib0/goalrilla_basketball_goal_black_friday.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474456/normal_600ef53ef19c0.pdfIn PDF document text
    • http://foteraza.22web.org/comcast_tv_guide_baltimore_county.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/lizuseguwix/24479663434.pdfIn PDF document text
    • http://mitofozajibo.rf.gd/wejasimitojejipunuguja.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/beetle_bug_3_for_android.pdfIn PDF document text
    • http://detuzojezil.rf.gd/google_maps_api_key_android_studio.pdfIn PDF document text
    • http://zaxutakizet.epizy.com/mikifogubawu.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/84670302449.pdfIn PDF document text
    • http://borobosen.rf.gd/belogikuwajinipapa.pdfIn PDF document text
    • http://taxolume.rf.gd/ayushmann_khurrana_new_movie.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_off0000d3fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3FD 5260 bytes
SHA-256: 8a4e989aa4810a4a36030396e355e1fdb046ded1a6df0657af6aab290f16c5f0
font_01_sfnt_off0000e5fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5FA 10844 bytes
SHA-256: 226ce815d248657d7ea0d61f6808b3c14784e54b870dacdf61324ceb570909d5

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