Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeb57542279983c7…

MALICIOUS

PDF

61.6 KB Created: 2021-02-15 07:41:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bd4e384e2c4162e3c325549b40b82fd7 SHA-1: cfcad7d09d054ec15ab002554c9b671b3c30344c SHA-256: aeb57542279983c7e68855c300dfe9cc2790ef4024d01923fa40729a159450d0
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://baarspo.ru/wix?keyword=sims+freeplay+architects+facebook PDF link annotation
    • http://ogranicbio.space/payday_2_vr_improvements_modbhcax.pdfIn PDF document text
    • http://startbastar.online/9008858458179yz.pdfIn PDF document text
    • http://ingmijn.com/5131938741hgwgk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497370/normal_5fd27ddcc273c.pdfIn PDF document text
    • http://zerkalo-fugicar.website/missing_kid_found_dead_washingtonze5or.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/wixanarer/31086564583.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/brief_formeel_voorbeeld.pdfIn PDF document text
    • http://nalejunubotuw.rf.gd/pandora_s_tower_wii_ita.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/mevojajufosede.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/mcafee_antivirus_free_trial.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/rapunekexokajavimezin.pdfIn PDF document text
    • http://kiwozoma.epizy.com/5038351368.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/62434847233.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_off0000b3ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3AB 5664 bytes
SHA-256: 9e451f98834e2cb1a05202cf4efa7b423a97df6c060cf9baa2bafe5cddabe0be
font_01_sfnt_off0000c6ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6CA 10924 bytes
SHA-256: 3ec7e7320880ea423cd79bbf6d80c52a4755c51942e5e30748c713cc61c71de8