Malicious PDF — malware analysis report

Static analysis result for SHA-256 caba579d7a619a1b…

MALICIOUS

PDF

91.9 KB Created: 2021-02-03 13:22:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 408491e0e8cd7d5278fa34d7284f4fab SHA-1: e9140660679e55a5b106f161e0bf559ab31c44e4 SHA-256: caba579d7a619a1b598de2993cdb60ccf4876b0c9daca7fbfed4142e5bf93246
156 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains a large number of external links, with one pointing to 'http://beninoduvewer.epizy.com/bigetufegatoto.pdf', suggesting a link farm or redirection mechanism. The presence of embedded URLs and the overall structure indicate an attempt to direct the user to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/123?utm_term=jay+gardoqui+treaty+apush
    • https://pejagefetem.weebly.com/uploads/1/3/0/8/130815482/xefusaj-tidimudoxogupix-jesepuna-woxizovofexu.pdf
    • http://ibkreactiva2020.com/tome_of_beasts_online_freedbyev.pdf
    • http://instofficial.online/25943007124riqnn.pdf
    • http://www19216801.site/37875336114ccyig.pdf
    • http://rollernefritmassage.xyz/taxawimimqsw9.pdf
    • http://vnds-v.website/descargar_libro_300_situaciones_dida71z4w.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://beninoduvewer.epizy.com/bigetufegatoto.pdf
    • https://s3.amazonaws.com/vuraradaso/arundhati_bengali_movie_song.pdf
    • https://s3.amazonaws.com/tinivukedeta/95104960511.pdf
    • https://s3.amazonaws.com/nelizenejakarug/gotezopuverajasipevu.pdf
    • https://s3.amazonaws.com/rodigapigeta/25396326696.pdf
    • http://devisufuxuvit.epizy.com/wallpaper_hd_for_jio_mobile_free.pdf
    • http://dofoxevepijuzox.epizy.com/wupizuxutojefiwufurujes.pdf
    • https://s3.amazonaws.com/gavapozalilup/14316376743.pdf
    • https://s3.amazonaws.com/neviwove/cardboard_animal_cutouts_templates.pdf
    • http://bubexixan.epizy.com/android_spring_animation_example.pdf
    • https://s3.amazonaws.com/bupijila/ganujonedixakarukop.pdf
    • https://s3.amazonaws.com/bevekizadoxuj/xoperimen.pdf
    • https://s3.amazonaws.com/liwara/wudurerorunijar.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012ae0.bin
b6c25d7c96e52646ecf6a74a930bf23aaaf57650b776e09fc1b4d26682e14eab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12AE0 5404 bytes
font_01_sfnt_off00013d35.bin
e5ad05d2362db1b4a5210e6f8e734b1cb84d005ed3879f13b3ccbb1fe7428f08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D35 11416 bytes

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