Malicious PDF — malware analysis report

Static analysis result for SHA-256 6892926e0b8e2d35…

MALICIOUS

PDF

72.0 KB Created: 2021-02-13 10:53:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8761796ad98f3dc5f13488727a4c5e96 SHA-1: 6ace08c9942dd54c7f8c03fffa76f225f657de02 SHA-256: 6892926e0b8e2d355fcff2f3356a66966d038872d341859d3d45e9ffdc0bcb4f
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://druttle.ru/wb?keyword=drinkers%20fault%20finding%20guide PDF link annotation
    • https://cdn.sqhk.co/wepigosogo/hdyingf/pisixalokogunug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426422/normal_5ffbee2b41036.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381108/normal_60133e558e88c.pdfIn PDF document text
    • https://cdn.sqhk.co/fobonelaga/ibhhxgf/king_followers_and_likes_latest_version_apk_download.pdfIn PDF document text
    • http://itali-big.space/kurebarovidetumuxqm4i.pdfIn PDF document text
    • http://wbigs.space/ribobozas0vbiz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393901/normal_5fee68ddb3019.pdfIn PDF document text
    • http://abreudesigns.com/download_game_basara_2_ppsspp_android_isod85tm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365607/normal_6018e2d0a84e0.pdfIn PDF document text
    • http://8gusevshop.website/31259243409bkgd1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420468/normal_5fe77e92b9df0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380692/normal_5fcd28b102eae.pdfIn PDF document text
    • https://cdn.sqhk.co/nixivezez/h5NObaE/zatoveluxafepuw.pdfIn PDF document text
    • https://cdn.sqhk.co/tojofelekob/ChechhN/64283493272.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/sojaxub/accomplishment_report_format_for_ojt.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/icse_hub_merchant_of_venice_workbook_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/crystal_reports_viewer_old_version.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/nipibotukip.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_off0000ddf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF4 5140 bytes
SHA-256: 204b95f912d11d8664fcbbccce39735d95cdadf9f39fc7cb4d49d186f08a0c17
font_01_sfnt_off0000ef8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8A 10356 bytes
SHA-256: e25cabc52c4862ca94d1448ad3c0d31c48072a6666b66711443de0378cf6b659