Malicious PDF — malware analysis report

Static analysis result for SHA-256 bde93f6251e31b34…

MALICIOUS

PDF

67.8 KB Created: 2021-02-03 11:42:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 05a5d7c8d1b110ff4f35c2f50f646695 SHA-1: 3c0f4585d2aee1a2cd99a320df835710383b63c2 SHA-256: bde93f6251e31b34c28ad3297957a63be0324d274982927051977297b17013b6
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://maypoin.ru/aws?utm_term=listening+b2+cambridge+with+answers PDF link annotation
    • http://ritixabig.iblogger.org/82662133681.pdfIn PDF document text
    • http://fapedivojo.22web.org/14567067993.pdfIn PDF document text
    • http://sanalunuguto.22web.org/17195150508.pdfIn PDF document text
    • https://cdn.sqhk.co/didatife/ggajeeF/nelezugo.pdfIn PDF document text
    • http://fumerox.iblogger.org/naruto_online_mobile_tencent.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/rozebofukixus/52805617674.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/44668738426.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/charlie_chaplin_2_video_song_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/solis_10kw_inverter_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/47215700529.pdfIn PDF document text
    • http://zoxuditavuvov.rf.gd/bozizikagasadejonixog.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/vmware_workstation_15_64_bit.pdfIn PDF document text
    • http://pesafitibum.epizy.com/48157986553.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/jofodinokutujamilavagibup.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/69622456101.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_off0000cad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAD1 5624 bytes
SHA-256: 66a48161697278736443cd88af8fad95ccc1260258cdd11905563bc1551b8a7d
font_01_sfnt_off0000ddd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD7 11224 bytes
SHA-256: aee086280f0e1d38c8e664071d9dbae43573c65c74d1bd8504c2bf36602289e7