Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f2d5fc4bd2491ac…

MALICIOUS

PDF

148.0 KB Created: 2021-01-16 09:22:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 2583f1c614166482d38127c17214575a SHA-1: d6ea330f51012bb98da01d883bcc2bb57b196b6a SHA-256: 6f2d5fc4bd2491ac610d419682d496fc5e04042e3bf8bd19504e53856c5ec0fb
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffine.ru/123?utm_term=historia+del+basquetbol+resumen+corto'. This indicates the document's primary purpose is to lure the user to this external site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious URL in a PDF document strongly suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffine.ru/123?utm_term=historia+del+basquetbol+resumen+corto In PDF document text
    • https://static.s123-cdn-static.com/uploads/4474746/normal_5feeee8b99574.pdfIn PDF document text
    • https://site-1178453.mozfiles.com/files/1178453/most_popular_tiktok_songs_april_2020.pdfIn PDF document text
    • https://sovuzozasofebod.weebly.com/uploads/1/3/4/3/134343281/7560599.pdfIn PDF document text
    • https://bikinolij.weebly.com/uploads/1/3/4/5/134514604/948688.pdfIn PDF document text
    • https://lubipufubuk.weebly.com/uploads/1/3/4/5/134597980/3192581.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/daselex/die_leiden_des_jungen_werther.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/da_form_casualty_feeder_card.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/free_hosting_wordpress_template.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/jidal.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/kofuribiripowavo.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/allotment_planner_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/numeros_romanos_ejercicios_para_imprimir.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/rolexu.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/alone_but_happy_wallpapers_free.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00020bd0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x20BD0 29236 bytes
SHA-256: cdfd444e299d05a40147ced77c7ea7aafe774f0a9df482c37cd3990468ac04fc
font_00_sfnt_off0001d2fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D2FB 5312 bytes
SHA-256: 68a083a14ab61a5341c151f2e4b4608c613df620f29430b76beacb5e688a99ac
font_01_sfnt_off0001e4e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E4E9 11824 bytes
SHA-256: 1adf2a3b9967d13fb0ca2badd5826ff733f444798aa7e0289cd4a1ca0236d33f

Open this report in the interactive analyzer, or submit your own file for analysis.