Malicious PDF — malware analysis report

Static analysis result for SHA-256 720332febd2a7838…

MALICIOUS

PDF

72.3 KB Created: 2021-03-04 05:46:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7b4be4aba30a3ff8f5ad089e4dd0b00e SHA-1: 2a32c6f9f26c47b2ffd4ac32e8608cef249c7ef5 SHA-256: 720332febd2a78385e1e97327ca2274ae9255176f34e5f8c4141a0e1539c61e0
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://pelibifir.ru/wix?keyword=de+vacaciones+crossword+puzzle+answers PDF link annotation
    • http://fosonelotila.medianewsonline.com/burapaz.pdfIn PDF document text
    • http://mufutekuson.getenjoyment.net/vitobulegugelanejape.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/W5jbRid/cyber_hunter_discord_free_clothes.pdfIn PDF document text
    • https://cdn.sqhk.co/jabisopomuxo/gf9ibhj/litogis.pdfIn PDF document text
    • https://kasesutibut.weebly.com/uploads/1/3/4/0/134017634/65c24e73.pdfIn PDF document text
    • https://cdn.sqhk.co/givesaxi/c5z7c7N/tipimomidiligudujobep.pdfIn PDF document text
    • https://dawemewi.weebly.com/uploads/1/3/4/7/134747996/giziwimolodak_jaxogagera_wetovowav_mowusekuwu.pdfIn PDF document text
    • https://safasisi.weebly.com/uploads/1/3/4/4/134472516/bodukoto_xikame_zagitosaru.pdfIn PDF document text
    • http://bopolubolef.mywebcommunity.org/41448588160.pdfIn PDF document text
    • https://tekoboxini.weebly.com/uploads/1/3/0/8/130814877/7788864.pdfIn PDF document text
    • https://pixadodo.weebly.com/uploads/1/3/2/7/132740612/fc23274739.pdfIn PDF document text
    • https://cdn.sqhk.co/zibumimuw/cD4uGah/splash_mountain_princess_and_the_frog_ride.pdfIn PDF document text
    • https://levevozupub.weebly.com/uploads/1/3/1/4/131407214/dineworeb-jupikirot.pdfIn PDF document text
    • https://cdn.sqhk.co/vufuvevu/N6qhaji/89888315962.pdfIn PDF document text
    • https://ruxikikigiligex.weebly.com/uploads/1/3/4/3/134347308/25d97659ea9f.pdfIn PDF document text
    • https://fepobewute.weebly.com/uploads/1/3/5/3/135386667/dunamavibuxurab_tenazu.pdfIn PDF document text
    • https://bagubabijotete.weebly.com/uploads/1/3/4/3/134319258/visuwoxegefozuj_xemuvadukusux_zeropu.pdfIn PDF document text
    • http://juwupexutaval.mywebcommunity.org/how_to_turn_on_arc_on_denon_receiver.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000df2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2D 5268 bytes
SHA-256: 65d9a5c9b3907245c83206cd24a23be6f4e47caadd56a64de8853d43e0b202d3
font_01_sfnt_off0000f14d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14D 10160 bytes
SHA-256: 64dd067cb386a7d32e629f66e96b44272ba3f5cbc886f482d4881660a76bc627