Malicious PDF — malware analysis report

Static analysis result for SHA-256 be66fdb9823c618d…

MALICIOUS

PDF

72.8 KB Created: 2021-02-03 02:04:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0885ffb0345b0a767541660c64bbe2eb SHA-1: 3292b12f141a792566704717aeb233ce7bc70fe5 SHA-256: be66fdb9823c618d3f9499c08aa2c640c2a07c70517e8b191c0fd2f8133052fd
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/wb?keyword=bluetooth%20detector%20app%20free PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4410222/normal_5ff7f004e1b3e.pdfIn PDF document text
    • http://clubstore.info/18920616413yc0p1.pdfIn PDF document text
    • http://detonicinitalia.website/36182270128vq1a5.pdfIn PDF document text
    • https://cdn.sqhk.co/sutadejuna/XgdoExr/surif.pdfIn PDF document text
    • http://biomaniix.website/poxowoxukefukusokapojakk8ge.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491936/normal_5fff31fe0a732.pdfIn PDF document text
    • http://7gusevshop.website/47652803808sj26y.pdfIn PDF document text
    • https://fabuduviwanor.weebly.com/uploads/1/3/4/7/134739750/2549079.pdfIn PDF document text
    • https://cdn.sqhk.co/pazakazagoz/guaggva/18875767592.pdfIn PDF document text
    • http://topvideo.design/limitte_0_0_sfr_bl_sfr_belirsizlii3oqub.pdfIn PDF document text
    • https://cdn.sqhk.co/fepogosu/ehieU7A/89887837835.pdfIn PDF document text
    • http://ogranifruit.space/subordinating_conjunctions_worksheets_with_answer_keywppwn.pdfIn PDF document text
    • https://ruwiderok.weebly.com/uploads/1/3/4/8/134891429/buzinixufifotitir.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/mesixadelomomo/99220460351.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/telubadizufutaluvalebos.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_off0000df17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF17 5116 bytes
SHA-256: a22b91422385c98f20c1eb32fd902fca4bb99f25de4521dd0287b202a73836ee
font_01_sfnt_off0000f076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF076 11392 bytes
SHA-256: 001c9a901bbcc70490739332c0f4bb7d9a22e22f3bef06bb73dd5c2bc4dc8608