Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f3f60c8f102c850…

MALICIOUS

PDF

67.3 KB Created: 2021-02-09 21:31:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0874eb1b9a666645cbf1bcf49e06f171 SHA-1: 46370b3bb567235d03eef910aa169f7e7b275b42 SHA-256: 1f3f60c8f102c8502645a39384fa90e28352c33d29ed813c7f572ae49b31cece
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://leonvi.ru/wb?keyword=samsung%20frp%20bypass%20apk%202019 PDF link annotation
    • http://help-mediasupport.com/bixerirowemowarnp2k.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/facebook_data_analytics_toolsugl0e.pdfIn PDF document text
    • https://cdn.sqhk.co/vagizabibo/AVheQwj/24378028403.pdfIn PDF document text
    • http://leopolds.space/to_kill_a_mockingbird_play_scriptcf6ve.pdfIn PDF document text
    • https://wugedelujexot.weebly.com/uploads/1/3/1/4/131456191/ditij-fusuwuwid-nibini-pepal.pdfIn PDF document text
    • http://shoop-fk.ru/rigosevujizofi0gexp.pdfIn PDF document text
    • https://dutosagow.weebly.com/uploads/1/3/0/7/130775111/1487996.pdfIn PDF document text
    • https://cdn.sqhk.co/vawadawuleja/yFjaThi/digital_gas_meter_reading_units.pdfIn PDF document text
    • https://gutirupivib.weebly.com/uploads/1/3/4/7/134768574/voxonix.pdfIn PDF document text
    • https://cdn.sqhk.co/pemazekefise/hiibCii/65531262493.pdfIn PDF document text
    • https://divaruwidis.weebly.com/uploads/1/3/4/0/134042650/vinegonewidiwi.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/JhdSjhY/stick_of_titan_2_apk.pdfIn PDF document text
    • http://copyrightshelpscenters.com/clasificacion_de_grannumymxcf.pdfIn PDF document text
    • http://strahauto.website/defexefitedesipuxusok37fl.pdfIn PDF document text
    • http://goossyy.online/631830601972y66a.pdfIn PDF document text
    • http://xivixevikid.iblogger.org/adaraya_agamaki_bus_horn_mp4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pakatikik.epizy.com/editable_ordination_certificate_template.pdfIn PDF document text
    • http://sakigekoxigukil.epizy.com/pronunciation_guide_for_biblical_names.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_off0000c768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC768 6080 bytes
SHA-256: 2149e8a493776ec4907ce8145126f2802494f0c852f1411a7195c6740f380a48
font_01_sfnt_off0000dc0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC0F 10688 bytes
SHA-256: 32aad2e8342eae61d70ed4a9589d9b4dfce453b3942b41e6725fad8439be34ae