Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bba11e943ab9959…

MALICIOUS

PDF

70.2 KB Created: 2021-02-25 20:08:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 9bcfdb9f650621c5efa2fd9e86d1ec01 SHA-1: 695a99135250b77932ea8c2f731436893c598e33 SHA-256: 6bba11e943ab99592a427f9895a79c0f4e78de55f8ceb0aa63eaeacc6b0170dc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/award?keyword=hp+psc+1315+cartridge PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4449395/normal_5fe4e0f4364d9.pdfIn PDF document text
    • http://damvglaz1.xyz/voliregimiltbqe7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388620/normal_5fdd5c95792d4.pdfIn PDF document text
    • http://vozaxakinexu.iblogger.org/animated_instagram_stories_free.pdfIn PDF document text
    • http://emmetrix.net/instrumentation_technician_interview_questionsjduol.pdfIn PDF document text
    • http://indir-kazan.com/dopagopem4c9o.pdfIn PDF document text
    • http://100naturals.fun/wovarezodekujotebpmh6.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetona/ijAigij/65968570077.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449172/normal_6000f3d8e16ca.pdfIn PDF document text
    • http://unreguezff.rest/583994293803z6g5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393898/normal_5ff4a21817f02.pdfIn PDF document text
    • http://qwertyujg.xyz/zijudatovurebut324t.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwunikuneg/gjjhfhh/80326252858.pdfIn PDF document text
    • https://cdn.sqhk.co/sinupupuzaxa/3OseFja/kaiser_permanente_urgent_care_seattle.pdfIn PDF document text
    • http://winnerslm.space/zutipivisiselaxo8v5it.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zosajirigo.rf.gd/76807012140.pdfIn PDF document text
    • http://wotalajo.epizy.com/alameda_alliance_appeal_form.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_off0000d596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD596 5512 bytes
SHA-256: 06f94d7311f7136b0688b787e9ad39fcc60b39556e72c04839bdb362c3c01c21
font_01_sfnt_off0000e869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE869 10480 bytes
SHA-256: 732a30c9310819f635d1ff8300b33ff74b78f40150d77af6a8193872b340550d