Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa272067eb779fb2…

MALICIOUS

PDF

72.4 KB Created: 2021-02-23 16:29:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: bea56a558c2571958cffa579300973bc SHA-1: 6758d392d980db5b6939510bf03b89d5e85dfdae SHA-256: fa272067eb779fb2cda13fd68dbff6a1fd4bcc48368be114b043a481e73fad90
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://seumenha.ru/strik?utm_term=kenmore+elite+refrigerator+repair+manual PDF link annotation
    • https://rorujazikuje.weebly.com/uploads/1/3/1/3/131379225/cc649.pdfIn PDF document text
    • https://lufojujerap.weebly.com/uploads/1/3/4/4/134481619/706352a65fe3b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375195/normal_5fce8e554a804.pdfIn PDF document text
    • https://gutirevenomosub.weebly.com/uploads/1/3/5/4/135400373/lufitu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454164/normal_600b6f9edca3b.pdfIn PDF document text
    • https://ninijaliwejito.weebly.com/uploads/1/3/4/3/134350726/wivibunalo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450723/normal_60253ba309568.pdfIn PDF document text
    • http://straponartist.com/mother_courage_bertolt_brechtedept.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366005/normal_5ff856847e0ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444100/normal_6018de97a2b18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446401/normal_5fe92765d112c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369514/normal_5fe469edbbe66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485301/normal_5fd79c7098503.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/desekusoxi/tcs_hall_ticket_link.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/patunax.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/waltzes_chopin.pdfIn PDF document text
    • https://s3.amazonaws.com/pekatikisuruki/ocarina_of_time_3ds_strategy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/84344921964.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_off0000dd7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD7D 5012 bytes
SHA-256: 5492fcd6d7584ef7922a635e32e99497bcedb5fc8e6074a8107b200034a2dba8
font_01_sfnt_off0000ee7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7C 11152 bytes
SHA-256: efb34d0099e8ff31d8298ff5ce18c21309da7957ab176c91aa8567820a7043ae

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