Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6446aac81c29ae5…

MALICIOUS

PDF

66.9 KB Created: 2021-02-18 22:16:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 03d2156ef5bdf5fb7d030a59fac7ca33 SHA-1: 82b20655f5b501293e082db285793ddcb4c3b6d8 SHA-256: f6446aac81c29ae5ea76e7cdbf6ffcf10cbae70de49e2428c4e9708dc99dbef4
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://jottigo.ru/wix?keyword=a+lady%2527s+guide+to+petticoats+and+piracy+epub+vk PDF link annotation
    • http://brumbum6.xyz/raccourci_clavier_actualiser_formule_excel8qgok.pdfIn PDF document text
    • https://cdn.sqhk.co/jutigurotow/jhahhoq/piano_tiles_3_free.pdfIn PDF document text
    • http://ryduslim.website/10_year_timeline_template_powerpointeccps.pdfIn PDF document text
    • https://cdn.sqhk.co/numavagoko/gCJrPQc/flip_phones_for_sale_on_ebay.pdfIn PDF document text
    • http://rimonevo.iblogger.org/8540829586.pdfIn PDF document text
    • https://cdn.sqhk.co/xalurubizud/cietghL/anti_smash_twitch.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454813/normal_600e93ec8b704.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zoxuditavuvov.rf.gd/namapobexupebiluwanu.pdfIn PDF document text
    • http://wopolew.rf.gd/current_affairs_multiple_choice_questions_with_answers.pdfIn PDF document text
    • http://ledojefuvase.rf.gd/vuduvigirupazafozedom.pdfIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/vagagozesozinobuxa.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/wimopiveropofesokedupibiv.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_off0000c8c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8C3 5628 bytes
SHA-256: 89a250618b5b75bf4258fa7a7e39fef7263cae05b3b523aa74f9999ffc903497
font_01_sfnt_off0000dc13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC13 10040 bytes
SHA-256: 20fd502d6778238d41463fe2286ecd1bdc48c6afadb0f1060d41568a6eb6d700