Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee80a319c95c1b3…

MALICIOUS

PDF

71.5 KB Created: 2021-02-22 20:47:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 503973a52432ff5a6e8e0902d78125f1 SHA-1: 60d26e0448025ab5d2aac7758bdac4864891891e SHA-256: aee80a319c95c1b38cafcd80ef54e6f37bc327a31391087a4d5312196dd8f3fc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=seo+services+toronto+futureworktechnologies PDF link annotation
    • http://silkhfig.bid/exosuit_high_capacity_inventory5m0ph.pdfIn PDF document text
    • http://usejus.pro/jlab_jbuds_sport_controlsle5mq.pdfIn PDF document text
    • http://wow50.pro/batang_pasaway_lyricslgc31.pdfIn PDF document text
    • http://endi-itali.space/venom_wallpaper_4kdjufj.pdfIn PDF document text
    • http://whalesqpa.fun/camry_hybrid_2020_price_in_pakistan92dn7.pdfIn PDF document text
    • http://zolomakowifop.iblogger.org/bsnl_3g_settings_for_android_karnataka.pdfIn PDF document text
    • http://hellochildren.online/30354429820go157.pdfIn PDF document text
    • http://vorecan.fun/fezuwinofebimilimigesixausuis.pdfIn PDF document text
    • http://repair-kvadrokopterov.ru/brushed_cotton_fitted_sheet_pinkz30i2.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/xidazeze/monster_dichotomous_key_activity_answers.pdfIn PDF document text
    • http://litegizixusiw.rf.gd/verorawabinejijo.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/identities_trig_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/retalasoniredovaw.pdfIn PDF document text
    • http://teporududa.rf.gd/63574436258.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/89918472140.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_off0000dd07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD07 5252 bytes
SHA-256: 55c2e626734b68de10fec52b87c3245d810cebd78738548b09a2dbf9dae3f1f3
font_01_sfnt_off0000ef00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF00 10052 bytes
SHA-256: e8f1f114a75b6372cd46be476c271239330b4d5cb6df1adecaae16be41947699