Malicious PDF — malware analysis report

Static analysis result for SHA-256 35c6625097e168ae…

MALICIOUS

PDF

67.0 KB Created: 2021-03-04 16:57:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 651c67baa2db531ea79451173ea91c4b SHA-1: 9b24bffc2cce28730b927b53c6629c3c7f542a05 SHA-256: 35c6625097e168aecd69e8131b58bb2b43adaed399fe1139e5a74e2a443c455f
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://bologen.ru/wix?keyword=ar+er+and+ir+verbs+quiz PDF link annotation
    • http://zodezabazigojab.iblogger.org/pirorifexokawafogobuvowax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418188/normal_6023bc0458627.pdfIn PDF document text
    • https://lezogije.weebly.com/uploads/1/3/1/8/131858481/kovoranemajone.pdfIn PDF document text
    • http://jitokinut.iblogger.org/wexidot.pdfIn PDF document text
    • https://sijalafad.weebly.com/uploads/1/3/4/8/134887162/3d1a67.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388405/normal_5fc81b6a60df0.pdfIn PDF document text
    • https://joguxakiwemov.weebly.com/uploads/1/3/4/7/134707067/0998fbd6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450430/normal_5feda6e4a6847.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://4095172d-bd2f-4181-91d7-dd424e653400.filesusr.com/ugd/df73ab_54db363c825e4e7d93e3953f120236e8.pdf?index=trueIn PDF document text
    • https://b354d503-40d1-4c97-84b4-bc0b16c12f35.filesusr.com/ugd/8c7d07_f609c6439e3042b28a968efb9f2b80bd.pdf?index=trueIn PDF document text
    • https://0e8f88b9-656e-4b05-9cd8-8bd477f85547.filesusr.com/ugd/95b9ea_2306f0c789ef43b1b48967dbe29894cb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wanalovum/miracle_2._65_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/vofarurefomiladifo.pdfIn PDF document text
    • https://75ca6b5e-a470-4e0e-8004-b00a9f1721b4.filesusr.com/ugd/1e4819_8d88fae27e29415fbd5dd894ad94f93b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xetasif/simple_interest_finding_rate_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/java_8_to_java_11_migration_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/2004_honda_element_manual_transmission_fluid_change.pdfIn PDF document text
    • http://lotarikavim.rf.gd/angry_birds_transformers_apk_mod.pdfIn PDF document text
    • https://0cc2a7d0-6f33-4335-9ec9-554d9418487e.filesusr.com/ugd/cb4a18_7d0ff935601c4efeb9015f93b9ec22c8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gopuze/helping_verbs_worksheets_with_answers.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c800.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC800 5152 bytes
SHA-256: 4edce6fed701247e7688a48e8d627f0a21c7be4210736b3dee4786560d662df2
font_01_sfnt_off0000d99c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD99C 10432 bytes
SHA-256: 6953e7fe3be0f17394573bf428d0772a7aa1029c500d1fe9825c2a6aa1330020

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