Malicious PDF — malware analysis report

Static analysis result for SHA-256 c48ce2eaf4dee108…

MALICIOUS

PDF

67.5 KB Created: 2021-03-19 10:13:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 9395f06aaeabd63ef50551d36b0689fb SHA-1: 7380b51a383f19b800c8b6edf19830a758f4fd43 SHA-256: c48ce2eaf4dee1081e8ae709f6525d259d617172f718e61db90d1326996d0bf0
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a lure related to 'tv guide elkhart indiana' and an embedded link pointing to 'https://soxebez.ru/wix?keyword=tv+guide+elkhart+indiana'. This URL is flagged as an SEO redirector, suggesting a phishing or free-download scam. ClamAV also detected the file as 'Pdf.Phishing.Trojan'. The presence of embedded URLs and the ML classifier's high confidence indicate a malicious intent, likely to redirect users to a malicious site.

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://soxebez.ru/wix?keyword=tv+guide+elkhart+indiana PDF link annotation
    • https://cdn.sqhk.co/lasanamemego/jirgTT6/derwent_inktense_colored_pencil_sets.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492529/normal_5fe769bdc3ddb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455669/normal_5ffb80db4cad8.pdfIn PDF document text
    • http://kefudepoduwudi.sportsontheweb.net/tagayun_building_design_and_construction.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462351/normal_6003b7c55f4eb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450353/normal_5ff9a92293ddd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393776/normal_600259cbcacc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427501/normal_604b79433e067.pdfIn PDF document text
    • http://powajaxib.medianewsonline.com/benanibulasozutolodiv.pdfIn PDF document text
    • https://cdn.sqhk.co/sativomofij/6N87hag/16152857115.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450870/normal_5ff8a2a209f40.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415531/normal_5ff76ee659695.pdfIn PDF document text
    • http://nositadox.mypressonline.com/bengali_to_english_translation_book.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/faxaxos/dividing_fractions_worksheets.pdfIn PDF document text
    • http://reduxaxu.epizy.com/juminemofapexazikemu.pdfIn PDF document text
    • http://matezule.rf.gd/cvs_caremark_specialty_appeals_form.pdfIn PDF document text
    • http://nugafafekovad.epizy.com/birisetavaxi.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/what_is_the_difference_between_applied_computing_and_computer_science.pdfIn PDF document text
    • http://dizutobasuxolom.epizy.com/kesolavajupu.pdfIn PDF document text
    • http://nukivamo.myartsonline.com/27953467958.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_off0000cd51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD51 4984 bytes
SHA-256: e55012a0a47280c508c583c6d29809a4df6e414fbe6be35467b6dfdaa5463fbc
font_01_sfnt_off0000de43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE43 10228 bytes
SHA-256: 3df285e78f5c15690e19a4cde9fc367d74250c409c45877c59a371028b995776

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