Malicious PDF — malware analysis report

Static analysis result for SHA-256 240706e1e3f58903…

MALICIOUS

PDF

71.8 KB Created: 2021-01-27 15:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 41838a78e945dc1323992b29c99e30a0 SHA-1: e3d7707f439d08d4a357c7adf146b30bbd097c5b SHA-256: 240706e1e3f589032dcdc0c01e2e02d22f6f9204cc622faa2085b4780b67d39a
194 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.
  • 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.
  • 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://crophysi.ru/wb?keyword=old%20cartoon%20network%20shows%20app In PDF document text
    • http://teaitalis.space/dilaziwoflra4o.pdfIn PDF document text
    • https://cdn.sqhk.co/dolubivo/33jgijB/68354418057.pdfIn PDF document text
    • http://luminar4-download.xyz/my_boy_gba_emulator_free_download_iosd0n8e.pdfIn PDF document text
    • http://giveaway2020.info/safety_mask_from_virusfpq35.pdfIn PDF document text
    • http://masito.space/best_iphone_tuner_metronome_appsl69g.pdfIn PDF document text
    • http://cyberghost.store/dagosuzo6iy7i.pdfIn PDF document text
    • http://probmaka.tech/78645363417h5tlq.pdfIn PDF document text
    • http://grampus-shop.com/91674602508z9d1d.pdfIn PDF document text
    • http://boomerangoo.site/punjabi_sad_ringtones_free_download_for_mobile_mp3zj9pf.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/rizijubovapuk/govufavesuv.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/50319345226.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/burning_full_korean_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/94855886998.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/cleaver_brooks_boiler_efficiency_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/biotransformation_in_plant_tissue_culture_slideshare.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/lejuxu.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/kodowotamepupix.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/budget_templates_for_openoffice.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_off0000d861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD861 5344 bytes
SHA-256: fa9efe6ee2eb1a1fdef94a9b92d49c845eac5f76b547a32019dc2baef43bc001
font_01_sfnt_off0000ea9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9A 11680 bytes
SHA-256: c2cb103d185ac5c248ca241b1aac5e767fe2c68d52e714370cb7102fc5a79b3d