Malicious PDF — malware analysis report

Static analysis result for SHA-256 93f413481b05e2a0…

MALICIOUS

PDF

65.0 KB Created: 2021-02-21 13:10:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ddf8a331bf357218d18d4887feeb56c2 SHA-1: d4454a740a3b0c3e4b7b8442652333b8eb0cc704 SHA-256: 93f413481b05e2a01b1b507f2d45a79189d5c6f46fa64e2009609bbfc5b22430
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://bologen.ru/wb?keyword=is%20feria%20semi%20permanent PDF link annotation
    • https://cdn.sqhk.co/xipepovivik/ihXV7gf/zulolesobelaf.pdfIn PDF document text
    • http://kmplitka.shop/80151912055mkerl.pdfIn PDF document text
    • http://domastmsk.space/cara_video_di_twitter_pada_iphonev8fa4.pdfIn PDF document text
    • https://cdn.sqhk.co/pomisiforuko/Tlthft3/1_bit_pixels_apk.pdfIn PDF document text
    • http://womenita.fun/9001_iso_2015_quality_manual_pptphe34.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xupikilagi.rf.gd/pomevej.pdfIn PDF document text
    • http://kebowikosu.epizy.com/92039336450.pdfIn PDF document text
    • http://mexavowudij.rf.gd/bomag_bt60_4_parts_manual.pdfIn PDF document text
    • http://gasigigi.rf.gd/81482197585.pdfIn PDF document text
    • http://miwefonozez.epizy.com/mariam_khan_reporting_live_songs_list.pdfIn PDF document text
    • http://zinezalidoratov.rf.gd/forensic_science_mcqs_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/lopeteb/migisoren.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/finding_equation_of_perpendicular_bisector_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/45837163649.pdfIn PDF document text
    • http://kazaxese.epizy.com/informacion_sobre_el_cauquen_colorado.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_off0000c35e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC35E 4952 bytes
SHA-256: 62fd896cae6768ae0272899b273c3dc2d08c523bc689d7ccf422b7e202af9115
font_01_sfnt_off0000d420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD420 10376 bytes
SHA-256: 2bd61730a66bb5ba6891be50ca2f377e21ea5206b0ed0200333817457bab349c