Malicious PDF — malware analysis report

Static analysis result for SHA-256 048af2fd36025595…

MALICIOUS

PDF

83.4 KB Created: 2021-02-10 17:11:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fe391bc3595c6ff77dbe0b1869697f50 SHA-1: 32c91933064ef8998c0a21ee224e5e20d62a8208 SHA-256: 048af2fd360255951b14362a362661fe8c7105e99e1dcb44c8b9f1483ee8eb48
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/wb?keyword=vert%20shock%20pro%20pdf PDF link annotation
    • https://cdn.sqhk.co/dodamewope/iemRPaB/guzuxemagasozenigeg.pdfIn PDF document text
    • https://tumokisomagen.weebly.com/uploads/1/3/4/8/134897409/04dc4973f0.pdfIn PDF document text
    • https://basedupapopulow.weebly.com/uploads/1/3/4/3/134344364/714fcee86.pdfIn PDF document text
    • https://cdn.sqhk.co/wavefekus/bOgebIa/best_shooting_base_in_2k20.pdfIn PDF document text
    • https://cdn.sqhk.co/wapadofiwe/ijhibjb/rekorez.pdfIn PDF document text
    • https://vifewilepame.weebly.com/uploads/1/3/4/0/134012930/xosekenenuj.pdfIn PDF document text
    • https://kunaxujo.weebly.com/uploads/1/3/1/4/131406864/e52b87.pdfIn PDF document text
    • http://yellownatural.space/94035018309049tx.pdfIn PDF document text
    • https://wesaxewotivaf.weebly.com/uploads/1/3/4/5/134578523/rumusikewixe.pdfIn PDF document text
    • http://anbieterbewertung-autoscoutch.com/nukilusuxibulajiwiben2gcf.pdfIn PDF document text
    • http://salea.site/tofujirewavixb21n.pdfIn PDF document text
    • https://roxewakedenal.weebly.com/uploads/1/3/1/4/131483042/d0f3b72.pdfIn PDF document text
    • https://cdn.sqhk.co/japokaxe/Wkjinja/25729800520.pdfIn PDF document text
    • http://milesnires.xyz/virus_estomacal_sintomas_y_duracion3yni0.pdfIn PDF document text
    • https://cdn.sqhk.co/gotirawuz/O5pgege/playrix_stock_ticker.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rokuwesepetab.rf.gd/bsc_physical_chemistry_book.pdfIn PDF document text
    • http://zukafudox.epizy.com/goodreads_apk_free.pdfIn PDF document text
    • http://zazuxidavo.rf.gd/apsrtc_bus_pass_application_form_for_ngo.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_off00010b22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B22 5032 bytes
SHA-256: 0ee385570d12c6a6c06ab24e3c2fb9cf39eddcdde08e568404c08df8ce66033f
font_01_sfnt_off00011c44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C44 10808 bytes
SHA-256: b4957b10ad4ef8a6f375bc014eb099ccafb30da5e6f4d915802186824fc928c6