Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecffd1501eab6646…

MALICIOUS

PDF

75.0 KB Created: 2021-02-24 07:29:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3f9c8951e56f0caa2d0d4d4a42f7797c SHA-1: 35c725b551177996d3766538e7552943a8554263 SHA-256: ecffd1501eab6646da24d1625845ace49f759b2f709b57585b441a15c9537622
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://jottigo.ru/aws?utm_term=does+kindle+have+harry+potter+books PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4473047/normal_5ff90c781cd57.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/iND9hhh/bolejivifexafikosaxez.pdfIn PDF document text
    • http://kwini-fini.online/vilujesaxom7p4.pdfIn PDF document text
    • http://xazufajemexeb.22web.org/angular_2_formbuilder_vs_formgroup.pdfIn PDF document text
    • https://zikazofikadit.weebly.com/uploads/1/3/0/7/130739129/jalubulo_butoxativapaz_wavuwo_netotapidige.pdfIn PDF document text
    • https://popaxeras.weebly.com/uploads/1/3/0/8/130814769/zasuxi_galenesuvuxusi_lijiviwiderobe_limexusa.pdfIn PDF document text
    • https://wuporebepumi.weebly.com/uploads/1/3/5/9/135981990/1080531.pdfIn PDF document text
    • http://tomogorman.com/71876140130555gv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415934/normal_5fe2323601a49.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/gogunabones/sekafunogebekisuni.pdfIn PDF document text
    • http://zufagubiles.epizy.com/google_chrome_free_for_mac_air.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/military_aircraft_performance_database.pdfIn PDF document text
    • http://webataj.epizy.com/audit_report_of_reliance_industries_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/game_adventure_android_terbaik_gratis.pdfIn PDF document text
    • http://zikimopotefeva.epizy.com/99506924318.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_off0000ea34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA34 5412 bytes
SHA-256: e1b1dce0786dfabbb10756b9745d88d6fb556a2ffb2d96e86ef2961cb015e9a0
font_01_sfnt_off0000fca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA3 10092 bytes
SHA-256: bc635d9fb00dbbfc0fe56a124aa2a709032f2b5bb516a2989c5054df26a2e65f