Malicious PDF — malware analysis report

Static analysis result for SHA-256 5039139691d03a1d…

MALICIOUS

PDF

68.5 KB Created: 2021-02-25 07:55:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1d0fe3e085803de86424f8b4aa92d6de SHA-1: e9efdff87ef9321c2fc56841c02f8ae4b9bd7d34 SHA-256: 5039139691d03a1d609d8fc3f8b0ce2dd7d4f718f02463f1d64dd84fc83e3c3c
104 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://leonvi.ru/wb?keyword=why%20isn PDF link annotation
    • http://pihodze.com/januvifexuvonexauq3iw.pdfIn PDF document text
    • http://coloradocustomelectric.com/70639623786fd6x7.pdfIn PDF document text
    • http://asia.kiwi/tonesasenihysrw.pdfIn PDF document text
    • http://vanimerukaguto.scienceontheweb.net/53677112438.pdfIn PDF document text
    • http://zujavok.22web.org/4765577590.pdfIn PDF document text
    • http://monoga.space/axis_mf_sip_stop_form4mlkq.pdfIn PDF document text
    • http://ru-en.xyz/ap_andhra_pradesh_weather_reporteytru.pdfIn PDF document text
    • https://leonvi.ru/wb?keyword=why%20isn't%20my%20ac%20remote%20workingPDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/zapijuxesanefibotosi.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/52826448888.pdfIn PDF document text
    • http://xujijanuzovaziv.rf.gd/97650834414.pdfIn PDF document text
    • http://bezopiwuzalobit.rf.gd/vakubujaluvapubujidem.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/dil_bechara_song.pdfIn PDF document text
    • http://xoxiposewarewa.epizy.com/bifeguki.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/69706847921.pdfIn PDF document text
    • http://niwanabumupe.epizy.com/dikariwojaxawisalugew.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_off0000cf7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF7F 5484 bytes
SHA-256: 1a1ec887076c07fbf55de4cae47b65a1b812e6bddad6d161587f862585bdbabc
font_01_sfnt_off0000e224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE224 10188 bytes
SHA-256: ebde6423c2778f04c8e4e883c34263e1fc7a470981c6011de60625a1ea07bc8a