Malicious PDF — malware analysis report

Static analysis result for SHA-256 14adf47e3aa94c2d…

MALICIOUS

PDF

69.8 KB Created: 2021-02-26 22:45:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: b364f6e98a6a7e8cac80fec238efee04 SHA-1: f884296748d68fab848fc5e62ab2ddf841c27c5c SHA-256: 14adf47e3aa94c2d3940efd6c1ad254c18b38a32968a7d55dc87a4565e1ff992
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/award?keyword=ps+vita+slim+price+in+malaysia In PDF document text
    • http://kopuvimu.scienceontheweb.net/how_to_turn_on_brookstone_cat_headphones.pdfIn PDF document text
    • https://kuredebe.weebly.com/uploads/1/3/0/7/130740483/f4ec679424c742.pdfIn PDF document text
    • https://lufuwoxataj.weebly.com/uploads/1/3/1/3/131379696/rigaziwe-dabiz-kiwavabu.pdfIn PDF document text
    • https://cdn.sqhk.co/xadakede/jcwmUii/aclp_events_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470232/normal_6031142777203.pdfIn PDF document text
    • http://kasaxeko.mypressonline.com/divina_commedia_canto_13_inferno_parafrasi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451542/normal_5fe788a37e37c.pdfIn PDF document text
    • https://cdn.sqhk.co/supesuvepo/hcwhemm/ladasivixamugere.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471238/normal_5fcee7fad6b79.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390068/normal_5fc6b092d1b04.pdfIn PDF document text
    • https://vawudida.weebly.com/uploads/1/3/4/8/134890241/9558025.pdfIn PDF document text
    • https://cdn.sqhk.co/fenajobuwer/hhaNgdB/wunasizir.pdfIn PDF document text
    • https://cdn.sqhk.co/lubigegek/gch1gdI/degonux.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://pigasupozev.epizy.com/allah_hu_allah_arabic_naat.pdfIn PDF document text
    • http://zudupaxub.myartsonline.com/taxapinudosuf.pdfIn PDF document text
    • http://kovefevejafuk.epizy.com/italic_calligraphy_practice_sheets.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_off0000c8bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8BB 4920 bytes
SHA-256: 57b28052d7f8ec15b4223ab088984cd209d0399ce3c7140b21515658d292b894
font_01_sfnt_off0000d953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD953 10224 bytes
SHA-256: 9d9a632d03f3f11b646e6772b1383c8a727e606eb4804f8edf0b3807d151917f
font_02_sfnt_off0000fc56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC56 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2