Malicious PDF — malware analysis report

Static analysis result for SHA-256 1317de02364e5803…

MALICIOUS

PDF

72.4 KB Created: 2021-03-04 02:06:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 59ffbc06af28ad30c956162e44ba0f8e SHA-1: bbb5bae4788770a600eedb56c564d9fcbf397844 SHA-256: 1317de02364e58037afe5c63cfe46c85c1fe925b37c9f07019f9c2bfad080495
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://golowaki.ru/wix?keyword=figure+drawing+for+artists+making+every+mark+count+by+steve+huston+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420468/normal_603c63fc1222f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470401/normal_603b6de115d49.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368265/normal_5fc7c9db18c2c.pdfIn PDF document text
    • http://wopivobozas.66ghz.com/sevufawepivevokib.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420431/normal_5fe40ee95d797.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376875/normal_60207a9bb2e69.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://memavopunon.rf.gd/south_africa_hip_hop_music_video.pdfIn PDF document text
    • http://juwemijawikipo.epizy.com/wokujoporufejufemorope.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/tapotawivudesov.pdfIn PDF document text
    • http://dagapevas.rf.gd/filing_police_report_after_the_fact.pdfIn PDF document text
    • https://s3.amazonaws.com/sitozi/how_to_replace_belt_on_oreck_vacuum.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/vodipoxeroliputur.pdfIn PDF document text
    • http://bofogaf.rf.gd/information_systems_audit_report.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/1518891295.pdfIn PDF document text
    • http://nojubeweba.epizy.com/marriage_day_wishes_images_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/standard_aluminium_sheet_metal_thickness.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/set_repeating_alarm_android_not_working.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_off0000dc70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC70 5948 bytes
SHA-256: b1f64633c2404d2c917ab7527a2147ab638ada4c4278c9c603182d810f9bcd47
font_01_sfnt_off0000f0b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B1 10224 bytes
SHA-256: f6a86ce140f0dc1b6aa661addf2af841e2562a8c5fa5c9f27d468fbf2a573c1a