Malicious PDF — malware analysis report

Static analysis result for SHA-256 68a170712ce98d8d…

MALICIOUS

PDF

76.9 KB Created: 2021-02-08 02:21:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e91d9a97dbfe8a0145d5717b334eaece SHA-1: fb9cc245c0caf8e00b23d00907c730a54bbc11e7 SHA-256: 68a170712ce98d8d113cebe28e1424d4b68875d117c114f3fa603f724b2083fb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://seumenha.ru/wb?keyword=asrock%20g41m%20vs3%20drivers%20%20windows%207 PDF link annotation
    • http://termometr-medikal.site/numerical_agronomy_bookd2p7z.pdfIn PDF document text
    • https://cdn.sqhk.co/fixefalid/6vjgjey/oneplus_launcher_mod_apk_download.pdfIn PDF document text
    • http://bilabugova.iblogger.org/best_quotation_format_template.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/if9geha/80330730430.pdfIn PDF document text
    • https://cdn.sqhk.co/totudavomud/XeidDgh/xalofuxu.pdfIn PDF document text
    • http://kewiwidifimanop.22web.org/40029717837.pdfIn PDF document text
    • https://cdn.sqhk.co/bomumuxa/j8ggSgj/download_celtic_village_heroes_survival_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/jabakujivim/gcuEiac/crash_team_racing_toys.pdfIn PDF document text
    • http://salleop.xyz/alejandro_steele_new_mexicolcmz1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/patotale/1270167273.pdfIn PDF document text
    • http://fuzezufomazo.rf.gd/calligraphy_numbers_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/50445463033.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/adios_everglow_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/funaliwevejozut.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/commando_2013_full_movie_khatrimaza.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/bmw_e46_auto_to_manual_conversion_wiring.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/14357811944.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/30803556122.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_off0000ddaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDAF 5604 bytes
SHA-256: 58f6baa406ad21caeeca3a53c411e077cf63a645de1771d4d959b27c622fab72
font_01_sfnt_off0000f0e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E9 22700 bytes
SHA-256: f22ea55f5be564b83f13c42a1619df8ea84931870993893b22342c2177813764