Malicious PDF — malware analysis report

Static analysis result for SHA-256 784c833ffad265c4…

MALICIOUS

PDF

75.8 KB Created: 2021-02-15 16:45:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c5f29fa33b529091cbeea88a208abaff SHA-1: 48752cc6d7b298e325b4b0c85535c2aacf8d83b9 SHA-256: 784c833ffad265c4fe8bfaf2a78da53477a5afcdbeb2c5e82e88d2a7661c6ed7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://maypoin.ru/123?utm_term=black+and+decker+handy+steamer+replacement+parts PDF link annotation
    • http://wabefovelixi.66ghz.com/tagokeraxonalij.pdfIn PDF document text
    • http://ericksandoval.com/brain_training_for_dogs_scam4efwh.pdfIn PDF document text
    • http://fallofelin.online/clayways_pottery_studio-_gallery_austin_tx0epsj.pdfIn PDF document text
    • http://mon-compte-cmb.best/itunes_64_bit_mi_nhty5i5l.pdfIn PDF document text
    • http://hd-cam-mirror-up1.club/811962493686lj3p.pdfIn PDF document text
    • http://serikanipesemo.iblogger.org/45652754656.pdfIn PDF document text
    • http://alternativeinfluencenetwork.net/30624744806vz3pr.pdfIn PDF document text
    • http://rekopeza.22web.org/berceuse_piano_sheet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403824/normal_5fee501abf05d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374953/normal_60281e239aa5d.pdfIn PDF document text
    • http://ver-alex.website/1860044162666kc3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477379/normal_5fe97909a8b7b.pdfIn PDF document text
    • http://prostotit.site/payday_lending_credit_reportinglloy3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://porapasegunan.epizy.com/rent_receipt_template_word_doc.pdfIn PDF document text
    • http://kabofed.rf.gd/guided_birding_tours_costa_rica.pdfIn PDF document text
    • http://rinurevidipefiv.rf.gd/hyundai_creta_features.pdfIn PDF document text
    • http://kiralemosokeze.epizy.com/9136619641.pdfIn PDF document text
    • http://mofibukuzoke.rf.gd/calf_sprain_exercises.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_off0000e1ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FF 5528 bytes
SHA-256: e37386e3cd0ec9b9032b203c4661600089d6d754073462cb32dddc03a684e0ce
font_01_sfnt_off0000f4a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A9 14400 bytes
SHA-256: e40e99f91775a76833ff159affe93d1181a4e0097b4a0fd9597be11c68af2ebd