Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e1edec5b0893f51…

MALICIOUS

PDF

69.9 KB Created: 2021-01-28 10:54:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 1b100082f85e36a95803ef3db5bc1d35 SHA-1: fbbf4773f6ed01cbb099b20f6d0799993be30ef0 SHA-256: 8e1edec5b0893f518a1029b6f8f228387848806c40e95f04c00578814c353738
126 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
  • 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://seumenha.ru/aws?utm_term=sql+server+2008+sp1+standard+edition PDF link annotation
    • https://cdn.sqhk.co/kapokosop/7BibP0p/92293616758.pdfIn PDF document text
    • http://50offstore.pro/tooltip_report_page_power_bi7by35.pdfIn PDF document text
    • https://nodararikerat.weebly.com/uploads/1/3/4/8/134885074/1884156.pdfIn PDF document text
    • https://cdn.sqhk.co/wexufenu/gbLezjb/king_s_romance_game.pdfIn PDF document text
    • https://motanaweda.weebly.com/uploads/1/3/4/3/134316912/c37e0ca6a.pdfIn PDF document text
    • http://vsspb.ru/gezigonexitikorinhd37x.pdfIn PDF document text
    • http://detonic-ro.website/mewed_noun_synonymvchr8.pdfIn PDF document text
    • http://baffer-shop.space/14059005732jqnpg.pdfIn PDF document text
    • https://cdn.sqhk.co/xejudawadoni/ihughic/soccer_tournament_application_form.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://woxutonugosafer.epizy.com/56581982881.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/32846463369.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/comment_apprendre_le_vocabulaire_francais.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/scholarship_referral_letter_template.pdfIn PDF document text
    • http://letituxis.epizy.com/64045964575.pdfIn PDF document text
    • http://ramejepazino.rf.gd/54585556528.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_off0000d3cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3CD 5764 bytes
SHA-256: a25fa8ed5a8f10f120b054b2382b819d6c5fe4a7ae5915c9316f74cdab21e88c
font_01_sfnt_off0000e782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE782 10408 bytes
SHA-256: 8eb4fd768dbece5d4194356f6639f449505a1a9bd4767dd19f645adf5f786ca6