Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f9f0ecf13a27776…

MALICIOUS

PDF

84.2 KB Created: 2021-05-18 19:42:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 6378509174b865ea4bcb1b7a8a6af011 SHA-1: 2eeb81390d9d8382dc81cc2714f7d7768017ede3 SHA-256: 6f9f0ecf13a27776d6cda78e696c970899651575c113e3d7d7b91be01fbd848d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that redirects to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, appears to be related to a search query for a washing machine manual, suggesting a lure. ClamAV detection and ML classification strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/strik?utm_term=kenmore+high+efficiency+washing+machine+manual PDF link annotation
    • http://romotogez.22web.org/tulajekijovuwafagil.pdfIn PDF document text
    • http://zabumufunesomud.66ghz.com/incident_report_format_free.pdfIn PDF document text
    • http://komujevakikumu.22web.org/keluweritafudu.pdfIn PDF document text
    • http://nowuxik.iblogger.org/kaxolifojubarizojenade.pdfIn PDF document text
    • http://gikubozudunol.iblogger.org/44056070626.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/kovilowab/contacts_from_icloud_to_iphone_x.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/roller_chain_guide_material.pdfIn PDF document text
    • http://tunukolan.epizy.com/how_often_change_transmission_fluid_honda_accord.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/montauk_cod_fishing_report.pdfIn PDF document text
    • http://paporoj.rf.gd/25980643126.pdfIn PDF document text
    • http://pujeriv.rf.gd/21695777785.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/33632309735.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/what_if_marvel_release_date_in_india.pdfIn PDF document text
    • http://bikutuvuxaxixo.epizy.com/nebavuvajebakibogawa.pdfIn PDF document text
    • http://bukufam.epizy.com/calories_in_arbys_gyro.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/jipuvuwikenute.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/segudim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c1dc69a-2024-451b-9396-64790429a48e/bruce_lee_the_fighter_song_lyrics.pdfIn PDF document text
    • http://nenutufap.epizy.com/63749827741.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/794058c0-28eb-43e3-9aa2-8eaef57e31b5/gobefigumomumokaza.pdfIn PDF document text
    • http://wubonaxe.epizy.com/decimal_number_line_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5f6e576-d235-4d46-bbd7-123467e3a0d0/71221493196.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/93039883124.pdfIn PDF document text
    • https://todayshomeowner.com/wp-contenIn 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_off00010bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BC3 5456 bytes
SHA-256: fc7d6454a3e42ea729aee9e00893d61d2940b90ea3ef826338bb54592c45da29
font_01_sfnt_off00011e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E4F 10804 bytes
SHA-256: 16ad9b47cb7198ffc8326fbc6c93802731f9f68c5aa73fac17b68fe6a8413889

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