Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ecca5a501641b73…

MALICIOUS

PDF

68.4 KB Created: 2021-02-22 04:01:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 95547bf354da9f6ef8756e26c466325e SHA-1: d588a8c7b4c4c2fd43937a91182915106ad9569e SHA-256: 5ecca5a501641b73025f600a61ceea63405482d96dfd98abd5d4f8b5806e9f09
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=garmin+etrex+legend+hcx+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4451039/normal_601421edd4340.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428038/normal_6030cfb1ac97e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393028/normal_5fda8db8bcf44.pdfIn PDF document text
    • http://introdom.ru/sofommiyu4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479674/normal_5ff9bdb3adc28.pdfIn PDF document text
    • http://polnews.xyz/xinigibevagiv6ixv9.pdfIn PDF document text
    • http://bluetea.space/78404942729fxw4p.pdfIn PDF document text
    • http://umkatrade.ru/so_too_either_neither_exercises61ytu.pdfIn PDF document text
    • http://gazzsheff.xyz/the_biology_of_beliefvti31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486353/normal_602dfc9fa4d2f.pdfIn PDF document text
    • https://cdn.sqhk.co/mipekakiri/hfXiage/police_bike_gangster_chase_apk.pdfIn PDF document text
    • http://azorocheat6.xyz/does_a_convection_oven_replace_a_microwavewsje6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502833/normal_5fc80115d466b.pdfIn PDF document text
    • http://brosbass.com/bodmas_worksheets_for_grade_7_with_answersz7rtn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392660/normal_60075e4fad45f.pdfIn PDF document text
    • https://cdn.sqhk.co/dofubetu/jbp4Iif/real_muscle_car_miami_reviews.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/leteraxewe/bivedosenitakixameza.pdfIn PDF document text
    • https://s3.amazonaws.com/libosokune/aplikasi_al_quran_indonesia_versi_lama.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/18664704699.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/boldon_james_classifier.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/naepp_asthma_guidelines_2018.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_off0000cda9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA9 5272 bytes
SHA-256: 5b7aaa5cd0b88305ca18056b3c1bc682f7e8c287fea6e4aa141244f414bf22be
font_01_sfnt_off0000df70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF70 10944 bytes
SHA-256: 465b030b5e019d94d00662ee72e777ec7c8e72606caa2931c390a8e802b01b1c