Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c95c189e8ab2dc3…

MALICIOUS

PDF

70.2 KB Created: 2021-02-21 16:53:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 02745ce2c20db82da35822bf298a298a SHA-1: 8421dca03df160c3beec24570bbf4321db800242 SHA-256: 8c95c189e8ab2dc3162b9c859af033db371e8f202b962907a21be49db28745b0
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://seumenha.ru/wix?keyword=gta+hacking+tools PDF link annotation
    • http://kozlo.space/65329633928uxe1m.pdfIn PDF document text
    • https://jemexegotida.weebly.com/uploads/1/3/4/4/134464186/bilote.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401538/normal_5fedd676d05c4.pdfIn PDF document text
    • http://vittorguxx.site/27037950275b22oc.pdfIn PDF document text
    • http://megatorg.ru/pavibizg47u.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427313/normal_602099bfa4e68.pdfIn PDF document text
    • https://nukofagola.weebly.com/uploads/1/3/4/8/134883999/5072270.pdfIn PDF document text
    • https://pikulevixabokof.weebly.com/uploads/1/3/1/6/131606248/8080710.pdfIn PDF document text
    • https://bafonalilazuxi.weebly.com/uploads/1/3/4/7/134731076/6789230.pdfIn PDF document text
    • https://kowalarezanir.weebly.com/uploads/1/3/1/4/131438161/rimoxepalobufu-rozovu.pdfIn PDF document text
    • http://zebrait.fun/world_history_benchmark_review_answers9r6el.pdfIn PDF document text
    • http://teachersaid.fun/magazine_layout_templates_for_microsoft_wordlc2hj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384642/normal_5ff23116a5551.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403264/normal_5feb95dfa3eba.pdfIn PDF document text
    • https://xekanowodupap.weebly.com/uploads/1/3/0/7/130739303/zaxanogej_daremamupizo_xawewejazot_nuvabinagujuwa.pdfIn PDF document text
    • https://lisogawe.weebly.com/uploads/1/3/5/3/135312855/2f947b0913de.pdfIn PDF document text
    • https://webesetumisurut.weebly.com/uploads/1/3/4/3/134318687/xitibajorunefunup.pdfIn PDF document text
    • https://duzesoduvumasu.weebly.com/uploads/1/3/4/1/134131570/8191911.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/xasovewipeje/20486014453.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/frigidaire_ice_maker_repair_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/affidavit_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/11645084160.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_off0000d7cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CC 5060 bytes
SHA-256: 376bbc9f69a01597a930ae026aa589a503c237dcdddd7ac90a483204ddffa12d
font_01_sfnt_off0000e90a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE90A 10184 bytes
SHA-256: 1059c9e34c365190af9a87f6ef351b849bb95ab9255210e46977b50816987ecc