Malicious PDF — malware analysis report

Static analysis result for SHA-256 777de84455df8cd5…

MALICIOUS

PDF

75.8 KB Created: 2021-02-22 22:39:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 10b778e05403b5d488fbb3343cecfd1d SHA-1: 4a2f1e07c93d5774be4d92a234ca1084b466868d SHA-256: 777de84455df8cd5cf4704f0d9de186860bd302f19b4d9714b72bd2f1cb1c6ee
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://jacksth.ru/aws?utm_term=learn+how+to+read+electrical+schematics PDF link annotation
    • http://latencfsrt.space/pugipigirupoganoa8510.pdfIn PDF document text
    • http://domastmsk.space/2307403039442ui1.pdfIn PDF document text
    • https://cdn.sqhk.co/goberirud/hTWicMk/lizipop.pdfIn PDF document text
    • http://kimagibasip.22web.org/sifimejarufaketalabasudas.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/lakujusitejojet/emirates_id_information_contact_number.pdfIn PDF document text
    • http://dapomajaberi.epizy.com/likuvugodo.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/25560844470.pdfIn PDF document text
    • http://jedabotuz.epizy.com/blood_drop_vector_eps_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/gw2_armorsmith_guide_2018.pdfIn PDF document text
    • http://nufufud.epizy.com/16997662657.pdfIn PDF document text
    • http://jinibodakix.epizy.com/25271984019.pdfIn PDF document text
    • http://zunedolu.rf.gd/sijabekesufatenedipuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/33047268261.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/22989107861.pdfIn PDF document text
    • http://mufogedone.epizy.com/kowurowug.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/disgaea_1_complete_strategy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/abdominal_ultrasound_tech_worksheet.pdfIn PDF document text
    • http://rimamosapike.epizy.com/56774906241.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_off0000e8a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A1 5212 bytes
SHA-256: e1880739144516625230012c18b0e75a74b94478811b0b06f48d2308f2632244
font_01_sfnt_off0000fa46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA46 11720 bytes
SHA-256: fef994c171453801daf1ecb2dc96da010c3cb67a9e275dc6174a4f31837a1ab4