Malicious PDF — malware analysis report

Static analysis result for SHA-256 60709c808fa9f078…

MALICIOUS

PDF

66.4 KB Created: 2021-02-12 11:31:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: db3bb581cd66c7ee758f1332511da83e SHA-1: 947f40b28fd5d3f74473ee284955138ae845a6b1 SHA-256: 60709c808fa9f0781efcc6e38da66f6f6db904baaa0f8b4bd434b6d17a96b10f
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=mifflin+township+ohio+trustees PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4416495/normal_5fc5eb94b6b20.pdfIn PDF document text
    • https://sagisumofag.weebly.com/uploads/1/3/4/8/134882066/42c4b7883a8.pdfIn PDF document text
    • http://itash.space/88642073091jcdoz.pdfIn PDF document text
    • https://litepuvib.weebly.com/uploads/1/3/4/7/134741427/4655384.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413469/normal_5fce991c4a687.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486566/normal_5fcf4f862efa4.pdfIn PDF document text
    • http://idealicait.site/xigutonetalezikizosakuj7de5f.pdfIn PDF document text
    • https://jetosiwer.weebly.com/uploads/1/3/4/7/134767378/luseketijo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474987/normal_600eb52f237b1.pdfIn PDF document text
    • https://nevipezuke.weebly.com/uploads/1/3/4/6/134652321/8845213.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/sazomo/granado_espada_beginner_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/1208199440.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/numezer.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/video_cutter_and_joiner_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/88316194642.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_off0000c98b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC98B 4876 bytes
SHA-256: 29e97508c1c9510748200fe419cd996ab2fe54c5473fe11d86d3a38ba44f827e
font_01_sfnt_off0000da3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA3B 10032 bytes
SHA-256: afb01edc67ae15b2de979fa0fd6d2fd412b22bc5faad2d40eb725137d1d7c268