Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1ed665a88c20a44…

MALICIOUS

PDF

67.5 KB Created: 2021-01-31 08:07:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9a919197fff5b9a72502efafa2d46c71 SHA-1: d50ebf92c6b5a1057ef078348195e146c28329a1 SHA-256: d1ed665a88c20a44744e73375922c044207debfc4bfae6cebc01e17ff1fcf3fc
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://jacksth.ru/wb?keyword=hmmsim%202%20train%20simulator%20gameplay PDF link annotation
    • https://guvepilafofifiv.weebly.com/uploads/1/3/4/6/134682232/7412064.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383586/normal_5fcedf8043b28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387586/normal_6013e1c58fc66.pdfIn PDF document text
    • https://dotofinadi.weebly.com/uploads/1/3/0/7/130740455/vuwigewedil_fajazu_zemuvumamigek_nulisur.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464070/normal_5ff8f49ec198a.pdfIn PDF document text
    • https://zujuwedidikaf.weebly.com/uploads/1/3/4/3/134375258/lenifefanofowipej.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411219/normal_5fca3335c5959.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481825/normal_5fd14b49eb9cb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412896/normal_5ff764b193dd3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gajovab.epizy.com/48800691368.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/53181435911.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/53565080281.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/aptech_ltd_annual_report.pdfIn PDF document text
    • http://dokelegusipodi.epizy.com/sokaxawalu.pdfIn PDF document text
    • http://terudobikemep.rf.gd/mike_wazowski_face_swap_meme_template.pdfIn PDF document text
    • http://jilovin.epizy.com/borosilicate_glass_sheet_pune.pdfIn PDF document text
    • http://rupevisa.epizy.com/vozonafofibe.pdfIn PDF document text
    • http://bajipodi.epizy.com/23351569531.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_off0000caa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAA9 5332 bytes
SHA-256: 444faebf1794e2cf14e4597f0d283760f0198c9ddbac660df6d96c9ac0b4ce21
font_01_sfnt_off0000dcb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB7 10608 bytes
SHA-256: 4ed6d1e2d25415a689df789716423a41dc1d4672a355a7cd51e9664b020724bd