Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6060582b89b1b01…

MALICIOUS

PDF

74.4 KB Created: 2021-01-30 12:49:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 425b0d6060e7a15d33dcc04aca5a028d SHA-1: ff6b85884d32fc927316a508e20608e5e841cf98 SHA-256: a6060582b89b1b0126471eec94fadbf1e212a682c0dfbe3502192099676f87a8
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/aws?utm_term=aida64+extreme+crack In PDF document text
    • https://cdn.sqhk.co/tuxarulenogu/ioieshf/adt_pulse_customer_support_number.pdfIn PDF document text
    • https://cdn.sqhk.co/felodunom/PhiXIie/latest_vikings_news_now.pdfIn PDF document text
    • http://dazixetenulega.22web.org/carmageddon_tdr_2000_pc.pdfIn PDF document text
    • http://bcipreactivaperu.com/play_free_casino_games_no_downloadhi44h.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464851/normal_6004cde65ef73.pdfIn PDF document text
    • http://pipvip.ru/60304366681r89t4.pdfIn PDF document text
    • https://cdn.sqhk.co/wusakituzu/gextojd/56548955394.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwonesi/4hjoGNc/bojokasuvafamupima.pdfIn PDF document text
    • http://j3vnci4.xyz/electrical_network_topologyt6otx.pdfIn PDF document text
    • http://bioforcecolumbia.site/82944592301gfkf0.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/SkhhPij/love_quotes_from_the_bible_images.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zegudonokor.epizy.com/wijikesifegaboxoteto.pdfIn PDF document text
    • http://jilevatawew.epizy.com/the_sectional_anatomy_learning_system_free.pdfIn PDF document text
    • http://gimusatis.rf.gd/unlock_bootloader_huawei_p10_lite_android_8.pdfIn PDF document text
    • http://jabowedufup.epizy.com/free_astrill_vpn_for_android.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_off0000e775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE775 5236 bytes
SHA-256: 1f3459309d04299a495ef01bdc3befa78566924a2868d6a043ed7fa63893d020
font_01_sfnt_off0000f93f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF93F 10384 bytes
SHA-256: 6f803e4e27baa825058556f9f1424c8ee43b8bed2240d3b13d6adacd5ba9c324