Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0f96b6a646f2dfe…

MALICIOUS

PDF

71.2 KB Created: 2021-03-01 10:36:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0181a2447b639a48d312295f559857e0 SHA-1: 46644935b5acfb0e5b19288c4aa22e30fbf6ebe2 SHA-256: d0f96b6a646f2dfebb219207f41fb9514eb80d468cbfb4cb80be8342fb01f2b1
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://baarspo.ru/wix?keyword=2011+vw+passat+owners+manual+pdf PDF link annotation
    • https://xunujilitaga.weebly.com/uploads/1/3/5/3/135315779/wagazimos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408475/normal_5ff713819bb64.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487897/normal_5feffbb9d35d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379719/normal_5ff7a0adc8a21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463791/normal_602043eb55657.pdfIn PDF document text
    • https://sijudunewofas.weebly.com/uploads/1/3/4/6/134696620/sebuler.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474456/normal_5fd03fdd363ae.pdfIn PDF document text
    • https://fogisitulen.weebly.com/uploads/1/3/0/7/130775537/bovezoze-pidufiwanulir-xamaxab-gulowarudo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497346/normal_600d6d318d2b3.pdfIn PDF document text
    • https://lojapajarete.weebly.com/uploads/1/3/4/5/134521209/8653785.pdfIn PDF document text
    • https://zasawebisev.weebly.com/uploads/1/3/4/8/134865024/9ee5d0.pdfIn PDF document text
    • https://fomemifeju.weebly.com/uploads/1/3/4/7/134769467/2772695.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450256/normal_60070010afb82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401692/normal_600c3e2962191.pdfIn PDF document text
    • https://loniforuwo.weebly.com/uploads/1/3/4/9/134904684/vumilaneto-vagimimubevuvij-xojozuxawix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379474/normal_6027ecd00edfc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d8af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8AF 5572 bytes
SHA-256: 5e9070610589d6dc10a17b8f6b69fe4fd5c5bccf2b76d0faa71d7fbde94ad22e
font_01_sfnt_off0000eba5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA5 10564 bytes
SHA-256: 71e9098c59eefc11e608dec3f69dc5df10bd031e2513be7e88371972597da7b3