Malicious PDF — malware analysis report

Static analysis result for SHA-256 31890f6aa86a502c…

MALICIOUS

PDF

69.9 KB Created: 2021-02-28 11:23:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c15c42eab3fcacbb76f9184e0ea31546 SHA-1: 310bd4ffb3076363d554551d92cce2db42c0631f SHA-256: 31890f6aa86a502ca9aafbd6defcc1874e89226184ffe9b19d092e30eb5b7230
126 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
  • 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://pelibifir.ru/award?keyword=tork+digital+time+switch+ew101b+manual PDF link annotation
    • https://xuwajaxupix.weebly.com/uploads/1/3/1/4/131407635/886549.pdfIn PDF document text
    • http://xoroketogejuxe.mywebcommunity.org/61133442070.pdfIn PDF document text
    • http://gutprod.xyz/hide_seek_divinity_2hqjdx.pdfIn PDF document text
    • http://help-nanny.site/emathinstruction_algebra_1_answersh9i0t.pdfIn PDF document text
    • http://mrt36.ru/818456051490pcnv.pdfIn PDF document text
    • http://basvuruizleme.online/home_depot_patio_furniture_assemblyzgw2o.pdfIn PDF document text
    • http://elerctum.org/weather_report_rewari59yx0.pdfIn PDF document text
    • https://totamozosapopa.weebly.com/uploads/1/3/4/7/134712517/8562951.pdfIn PDF document text
    • http://zokidinodajives.getenjoyment.net/77988184062.pdfIn PDF document text
    • https://fukoroxovelamos.weebly.com/uploads/1/3/0/7/130776486/1656258.pdfIn PDF document text
    • https://pigamudabuv.weebly.com/uploads/1/3/4/2/134235231/rezetaxetalox.pdfIn PDF document text
    • https://denelabi.weebly.com/uploads/1/3/4/1/134109088/xorigupogewibotiw.pdfIn PDF document text
    • https://sesupukaxupasi.weebly.com/uploads/1/3/1/0/131070911/konepotoba.pdfIn PDF document text
    • https://pabedimulexi.weebly.com/uploads/1/3/1/6/131606760/guvedefugirabakovoma.pdfIn PDF document text
    • https://muwilumi.weebly.com/uploads/1/3/0/8/130813533/varetajujojefom-zojugile.pdfIn PDF document text
    • http://copyright-securityx.com/do_chloroplasts_produce_chlorophyllqelv7.pdfIn PDF document text
    • http://wapadax.scienceontheweb.net/45001112359.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://womawujun.atwebpages.com/18909193638.pdfIn PDF document text
    • http://pejonoma.epizy.com/word_document_award_template.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC621 5672 bytes
SHA-256: d52f4e48d3ecea159da816f14a9c6c59ae3eb992186077eb5ba8ae70ae06e4c4
font_01_sfnt_off0000d95d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD95D 10148 bytes
SHA-256: 4e41105009a5c93751c1ee2f338fdb60a23acb8164ae3397f93150a4e8ab7c1c
font_02_sfnt_off0000fc27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC27 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2