Malicious PDF — malware analysis report

Static analysis result for SHA-256 a99f80e581391875…

MALICIOUS

PDF

72.7 KB Created: 2021-02-27 18:58:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e716026b0d1d4b8ea4c80a9b9ecd11f9 SHA-1: 2fc084c74e3768288a46b807c76d319f98fe6f2c SHA-256: a99f80e581391875c97da7ba9eb97474979c6fe2fbaf556db2ec277d4dcdb362
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://dugedepap.ru/wix?keyword=poleas+de+carro PDF link annotation
    • http://shopyou.online/wubebevixizuy5nml.pdfIn PDF document text
    • http://gosoxegekiri.mywebcommunity.org/blank_world_map_with_borders.pdfIn PDF document text
    • http://scm03.ru/aradhana_1962_telugu_songs_freeqotej.pdfIn PDF document text
    • https://zaxewunatomilar.weebly.com/uploads/1/3/4/1/134131499/3254138.pdfIn PDF document text
    • http://lnstagramcopyrighthelps.com/tor_browser_windows_7_32_bitb03uf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466666/normal_602a0eb3b41be.pdfIn PDF document text
    • http://job-finder.space/zovifexaditibovax1vue.pdfIn PDF document text
    • http://apparently-home.com/95473230891f1efu.pdfIn PDF document text
    • https://xonatiwomunonow.weebly.com/uploads/1/3/1/8/131856992/9335568.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379053/normal_5feccce381f34.pdfIn PDF document text
    • https://tamexixufose.weebly.com/uploads/1/3/0/7/130739892/8053173.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468537/normal_60059f926246b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368505/normal_5ffad1c201df3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vexekuvo.rf.gd/how_the_grinch_stole_christmas_book_quotes.pdfIn PDF document text
    • http://sobogasitizi.epizy.com/warlock_demonology_4._3_4_pve_guide.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_off0000dd8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8E 4936 bytes
SHA-256: aa049eedbab5519e9c240f6f011b45bc0732bf2f76f9b0ab22dd22d1694bf77b
font_01_sfnt_off0000ee5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5A 11852 bytes
SHA-256: baa3c899295035e2e49d2d798f22820216a7124948939341988b1c75aaed8598