Malicious PDF — malware analysis report

Static analysis result for SHA-256 a01111eddc287a89…

MALICIOUS

PDF

71.0 KB Created: 2021-02-26 06:11:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6e45bd475d9ef5f099efbe2cd015c489 SHA-1: 1a3fc2e48f66545c3a3a35b9596074c518a7a1b1 SHA-256: a01111eddc287a89137c74156ca9978392fc6f99470b914e093a3d39aee8a39f
196 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.
  • 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/award?keyword=how+to+tell+if+golf+cart+solenoid+is+bad PDF link annotation
    • https://cdn.sqhk.co/nomazotesi/ihJijgc/75190990462.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/ijkyOsP/shattered_glass_movie_review.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448341/normal_6024614110f12.pdfIn PDF document text
    • https://xunasumip.weebly.com/uploads/1/3/2/6/132696393/wefoxoko-jovuradufaf-todixisovexu.pdfIn PDF document text
    • https://cdn.sqhk.co/mifijizudi/biujf4F/amazon_fire_stick_mirroring_mac_laptop.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/kjhF3jg/driving_zone_russia.pdfIn PDF document text
    • https://cdn.sqhk.co/latosagax/jf7frjc/place_de_la_republique_francaise_liege.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxumisi/h7qjhaC/80870925436.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365639/normal_601b748badf52.pdfIn PDF document text
    • https://cdn.sqhk.co/depadukat/bRjjhfO/negezikujotukuzosobutu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426953/normal_5ff0c670a78b7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460686/normal_5feb0407a9ff3.pdfIn PDF document text
    • http://safijejog.mygamesonline.org/13995845884.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402960/normal_5fdef03747a6a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gurabagoderes.atwebpages.com/lenovo_t510_ram_erweitern.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/apple_tv_airplay_android_app.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/ucla_ranking_us_news_world_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vuterijoze/30093715783.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/chamma_chamma_hd_video_song_pagalworld._com.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_off0000d621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD621 5384 bytes
SHA-256: 937486ba1c3d9930a76a2fcec8e9a01e7ba3ca1d245153258cb5261103e38cc2
font_01_sfnt_off0000e895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE895 11404 bytes
SHA-256: c81af6dd5c70b315c92204da19a4848177881daf2ffc07e078d7f3eb64f21c29

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