Malicious PDF — malware analysis report

Static analysis result for SHA-256 dad4280bd49fc9c3…

MALICIOUS

PDF

75.5 KB Created: 2021-01-25 04:56:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2c42dd2cfe5e11d3f9851ee0bc4849e4 SHA-1: c19c33c9e8a74b7a13a23dd88283fc8fd5f91544 SHA-256: dad4280bd49fc9c3646c6e31ce6ab2f23c1b51bed21bb2874e98f14cc049b21b
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://druttle.ru/wb?keyword=slither.%20io%20play%20online%20unblocked PDF link annotation
    • http://visiblawty.com/92089524787zo2vt.pdfIn PDF document text
    • http://ceiling48.ru/lexaduwuluv25gus.pdfIn PDF document text
    • http://bitsracing.net/34865876900c1n2c.pdfIn PDF document text
    • https://cdn.sqhk.co/fisejadiruw/ahdha9j/vibufubadufasilutapeduxe.pdfIn PDF document text
    • http://jumofusifabezol.66ghz.com/domestic_violence_reporting_laws_in_florida.pdfIn PDF document text
    • http://vir-tus.com/detroit_red_wings_charter_planeu2mxf.pdfIn PDF document text
    • https://witetalujoloxof.weebly.com/uploads/1/3/0/7/130740434/zofepula_nofale.pdfIn PDF document text
    • http://plsale.pro/frost_journey_game_on_facebook8ub33.pdfIn PDF document text
    • https://cdn.sqhk.co/pibegufuxova/dHOih9z/marisefudagudubi.pdfIn PDF document text
    • http://vitrinachel.ru/london_bridge_full_hd_wallpaper0zqwg.pdfIn PDF document text
    • http://expressday.online/snapchat_app_icon_redd4xx2.pdfIn PDF document text
    • http://italystore.pro/ledanumitazdkdar.pdfIn PDF document text
    • https://penuwepilaxol.weebly.com/uploads/1/3/4/7/134756509/9749366.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dinelak.rf.gd/14519139797.pdfIn PDF document text
    • http://jujodixawo.rf.gd/socomec_atys_c30_manual_english.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_off0000ebda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBDA 5424 bytes
SHA-256: ae51f2c5b25b7e8bd3935d9faf53c5d799a626e99a75dea7f4b3a3cf857486f9
font_01_sfnt_off0000fe43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE43 10124 bytes
SHA-256: 495ad6da9be1656339c2ad8eba2532303ddff609ee3303a62ff9e9beacf02aa2