Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5b032f9e414e74b…

MALICIOUS

PDF

71.9 KB Created: 2021-03-13 19:18:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 6a6fefe8cd97666c9122d4c36b9c31af SHA-1: 0e4d417c14b3bf48da9fda70614a31d115235862 SHA-256: d5b032f9e414e74b9d36299e3829bea0e293dc662048f2d5acd654797815c164
184 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or redirection scheme. The ClamAV detection and ML classifier indicate malicious intent, likely related to phishing or malware delivery. The embedded URLs and the document's deceptive content point towards an attempt to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6313

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 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.
  • 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
  • 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://pelibifir.ru/award?keyword=marathi+marriage+biodata+pdf+download PDF link annotation
    • https://cdn.sqhk.co/zowajomi/bhbEzgL/37900176860.pdfIn PDF document text
    • http://fofiwafajelerax.sportsontheweb.net/53970559594.pdfIn PDF document text
    • https://bomejafir.weebly.com/uploads/1/3/4/7/134725936/pegumerirupexaraf.pdfIn PDF document text
    • https://kisewosa.weebly.com/uploads/1/3/1/0/131070890/5926885.pdfIn PDF document text
    • https://merezedul.weebly.com/uploads/1/3/0/7/130739463/verofonexux.pdfIn PDF document text
    • https://cdn.sqhk.co/vasegodesazu/GegeBha/ladijedivagogusebosakakil.pdfIn PDF document text
    • https://timelasabo.weebly.com/uploads/1/3/4/3/134345700/2761391.pdfIn PDF document text
    • https://cdn.sqhk.co/pagupuxu/hWV41PI/96428676177.pdfIn PDF document text
    • https://xamikike.weebly.com/uploads/1/3/1/4/131406211/wokijepekuripogov.pdfIn PDF document text
    • https://fojumujitugesi.weebly.com/uploads/1/3/4/6/134688065/jinigulajet.pdfIn PDF document text
    • https://mopokelam.weebly.com/uploads/1/3/5/3/135349304/1412545.pdfIn PDF document text
    • https://wojanoxunoliwam.weebly.com/uploads/1/3/5/3/135394081/9c225801ea691e.pdfIn PDF document text
    • https://cdn.sqhk.co/bitowiso/8ugdgjp/tabevoxeteru.pdfIn PDF document text
    • https://cdn.sqhk.co/rovifatira/ezhfIhe/gamefly_ps4_reviews.pdfIn PDF document text
    • https://lagukowimewalis.weebly.com/uploads/1/3/5/3/135335318/losaxad.pdfIn PDF document text
    • http://zevewidojodot.mywebcommunity.org/think_and_grow_rich_ebook_kindle.pdfIn PDF document text
    • https://wumigativagulam.weebly.com/uploads/1/3/1/6/131637174/9899024.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://dbb1fad9-9c05-458f-9e32-bc0b7f65d7ec.filesusr.com/ugd/451461_631c798e6f6746b0904fcfec452c7366.pdf?index=trueIn PDF document text
    • https://07f52280-50dc-49c2-beec-a2e30bf849d0.filesusr.com/ugd/7b8f90_464d9ae16ac343b7b014581cb6fe4546.pdf?index=trueIn PDF document text
    • https://36fc1fe3-b646-4cc1-b6e9-de51469aea27.filesusr.com/ugd/3eb4bd_c5993821ace340349629efed8bdb0c72.pdf?index=trueIn PDF document text
    • http://zitasixan.atwebpages.com/sedifujovotexu.pdfIn PDF document text
    • https://de99c131-68bf-4271-bcef-cda292486844.filesusr.com/ugd/f5892c_33ac30350cc649849cc62b2ecd4d8038.pdf?index=trueIn PDF document text
    • http://woranuganavot.myartsonline.com/los_protocolos_de_los_sabios_de_sion_casa_del_libro.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e21c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE21C 5512 bytes
SHA-256: 467988c9cb4b152233be4cdd62216749071ed63559086b38c7834abbb3245605
font_01_sfnt_off0000f4c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C7 11192 bytes
SHA-256: 811381836e4303cefcbef2b94a24458fa0e5a0e98438bd4846b370389518a885

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