Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ab73cff666e4867…

MALICIOUS

PDF

72.4 KB Created: 2021-02-04 03:55:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 972edfd60b220fcd446eea042945739f SHA-1: 206ca873347d9256cafb5461afd0dc0c622523b5 SHA-256: 2ab73cff666e486723dbc1b189fbac5006cf95c4fa31ee113f9fc836f59b05d3
136 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
  • 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://leonvi.ru/wb?keyword=moleskine%20calendar%20template%202019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4464313/normal_5fe6de360eda7.pdfIn PDF document text
    • https://dokakuzod.weebly.com/uploads/1/3/4/8/134884054/6860971.pdfIn PDF document text
    • http://rubeatyshop.xyz/rezivokivatus4w84t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407331/normal_5ff1bc9ca2926.pdfIn PDF document text
    • https://vinipuzi.weebly.com/uploads/1/3/0/7/130776781/2841967.pdfIn PDF document text
    • https://luvofebujapima.weebly.com/uploads/1/3/0/9/130969865/mudemi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384632/normal_600043d46cfbc.pdfIn PDF document text
    • https://sobafezusebe.weebly.com/uploads/1/3/5/3/135335887/2645c9090c30dd.pdfIn PDF document text
    • https://buparemekixa.weebly.com/uploads/1/3/0/7/130739227/6493895.pdfIn PDF document text
    • http://sungo1.space/sports_card_collector_shops_near_med9fa5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419001/normal_5fe02c14074c6.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/kumasala/the_opposable_mind_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sorapobuk/20751583083.pdfIn PDF document text
    • http://jupilabezisetif.epizy.com/34117219262.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/92350205329.pdfIn PDF document text
    • http://rigitusavogu.epizy.com/happy_birthday_to_you_song_djpunjab.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/hindu_tamil_news_paper.pdfIn PDF document text
    • http://kamabutexukawiv.rf.gd/vegan_lasagne_sheets_australia.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_off0000dd13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD13 5768 bytes
SHA-256: 9f9569ad145faab839966335fb349b620a9b1949fcfe6ea3a2dc61cb68a5f092
font_01_sfnt_off0000f0ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0AB 10588 bytes
SHA-256: 73aa6552c414f7a1c172dbda06b618363cebbab2d6b32b830072e846d2c4a89a