Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0b9d6286e31bde3…

MALICIOUS

PDF

67.9 KB Created: 2021-02-27 21:15:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 53f7c1fe83a29f800bf67de8272ac7b8 SHA-1: 83b42ac570641c33b0628683ff8f9519a3ec082b SHA-256: c0b9d6286e31bde3868282ea4fd2b54815be78ec09bc19347ad73a19f3d2e665
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://nipisod.ru/award?keyword=myron+mixon+bbq+rub PDF link annotation
    • http://carinsusa.info/wapifupaborotazov9qh9.pdfIn PDF document text
    • https://povemiloten.weebly.com/uploads/1/3/4/6/134608376/676609.pdfIn PDF document text
    • http://vadosixajobirug.mygamesonline.org/eureka_forbes_vacuum_cleaner_spare_parts_chennai.pdfIn PDF document text
    • https://taxinureku.weebly.com/uploads/1/3/0/8/130814469/binevetegubaw.pdfIn PDF document text
    • https://kosonajiwepojig.weebly.com/uploads/1/3/4/3/134373389/zosutezer.pdfIn PDF document text
    • https://nelubetif.weebly.com/uploads/1/3/5/3/135322580/4823621.pdfIn PDF document text
    • https://runogobikekeg.weebly.com/uploads/1/3/5/3/135350887/144f97be1c4b7.pdfIn PDF document text
    • http://aycotoro0.xyz/microsoft_wireless_notebook_optical_mouse_4000_drivereabom.pdfIn PDF document text
    • http://fdvsefwfrw.space/arkham_horror_card_game_chaos_bag_appwbie5.pdfIn PDF document text
    • https://bilobusi.weebly.com/uploads/1/3/4/8/134872308/2369204.pdfIn PDF document text
    • https://rurasaza.weebly.com/uploads/1/3/4/8/134869927/5757020.pdfIn PDF document text
    • http://alex-travel.moscow/roue_des_C3A9motions_C3A0_imprimer_gratuitqh4ut.pdfIn PDF document text
    • https://gagavupotiwek.weebly.com/uploads/1/3/0/8/130813998/28593c50da.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/sebunuzu/90848146511.pdfIn PDF document text
    • http://serumisa.epizy.com/43864730355.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/architecture_block_diagram_template.pdfIn PDF document text
    • http://sefudupufojuxo.rf.gd/base64_encode_document.pdfIn PDF document text
    • http://suwiwozeko.rf.gd/freeze_spreadsheet_excel_2010.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_off0000ce0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE0D 4852 bytes
SHA-256: 8dbdef183c3e10c8c3761f1b8b6aa1659a3a8d605ca14068262354f0fcf26e2c
font_01_sfnt_off0000de94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE94 10676 bytes
SHA-256: 0a62b5192e2af5f01a0f24b231a1d2b4ea71157526473967587688eac3faf519