Malicious PDF — malware analysis report

Static analysis result for SHA-256 a80f6f98e60b393c…

MALICIOUS

PDF

65.5 KB Created: 2021-02-05 13:14:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5f8c4b817d62b1ce7eed8874cbd54515 SHA-1: 6e61910ba509d6f91fe56fc6f7cec7c235788d5d SHA-256: a80f6f98e60b393cfe80f022fb3faa3f7bcb940c19aa988a02689ac314e5c12e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://jottigo.ru/wb?keyword=julia%20florida%20agustin%20barrios%20pdf PDF link annotation
    • https://cdn.sqhk.co/dumusafikilo/hg7mibF/perte_des_dents_de_lait_chien.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457577/normal_5ffa9a962430a.pdfIn PDF document text
    • https://cdn.sqhk.co/numokafas/fjgjeYv/xuvulir.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/ewhbibX/rudamudatopokujifapovu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493200/normal_5fe17b859fc64.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377100/normal_5fffe861626b6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368962/normal_5ffeb8e82f036.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465907/normal_5fe2a840ce226.pdfIn PDF document text
    • https://cdn.sqhk.co/dejijadu/whdiais/dixage.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465264/normal_601830ff45fcc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://timavutiziv.epizy.com/chaalbaaz_bengali_full_movie_480p.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/dewumelepuvozime.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/94193397576.pdfIn PDF document text
    • http://tokafibalo.epizy.com/sigomexotetutafow.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/rabuxeralefolagijulodopox.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_off0000c3c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3C7 5336 bytes
SHA-256: 00b55df645ab8e13931049a7cee028193ad34522e80edaded5ab45941da354de
font_01_sfnt_off0000d5fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5FC 10376 bytes
SHA-256: e5b0ec45ab939f1178d462c002096cef4e57801e86432a48ada56f9ae0df4d02