Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7711fb25764691a…

MALICIOUS

PDF

67.6 KB Created: 2021-01-31 22:11:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: b972d9ea2fe1cdda4fe4d43f27b304a3 SHA-1: a0e7fee8d198b992c6b4b81e0a960d8fc178f883 SHA-256: e7711fb25764691a8f05b3146946e2736f0f57d04031bcfa83aa5c09c8c0efd4
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, flagging it as a phishing trojan. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO manipulation tactic. The presence of embedded URLs and the nature of the heuristics indicate that the document is designed to redirect users to potentially harmful content or facilitate further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8239

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/aws?utm_term=burr+coffee+grinder+reviews+consumer+reports PDF link annotation
    • http://sebemigon.66ghz.com/xinamemidaxe.pdfIn PDF document text
    • http://taygerr.com/rudusekimu8s1xp.pdfIn PDF document text
    • https://bagirarivevi.weebly.com/uploads/1/3/1/3/131384609/gejupefuwaz.pdfIn PDF document text
    • https://wumudirega.weebly.com/uploads/1/3/4/5/134515906/gezaxowejidoze.pdfIn PDF document text
    • https://jimedugevebuz.weebly.com/uploads/1/3/4/4/134437071/abeb0a1b.pdfIn PDF document text
    • https://tobadagagu.weebly.com/uploads/1/3/4/7/134750152/a4f1e3968e56d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449399/normal_5fcf062e6701a.pdfIn PDF document text
    • https://tujozidu.weebly.com/uploads/1/3/4/6/134694944/rifujevizedo.pdfIn PDF document text
    • https://kedumapeba.weebly.com/uploads/1/3/4/5/134593926/9c954.pdfIn PDF document text
    • http://helplnstagramcontact6088758.com/motogp_racing_17_championship_mod_apk_revdlnbhnp.pdfIn PDF document text
    • https://nepefesin.weebly.com/uploads/1/3/1/4/131410606/9bd60a7346.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464720/normal_5fc95d5a85a02.pdfIn PDF document text
    • http://vkysnaya-eda.site/best_livestream_app_for_mac88kra.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468534/normal_5fe7d81cae250.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://todugiremo.epizy.com/contact_list_template_google_docs.pdfIn PDF document text
    • http://zobawukesilebaf.epizy.com/nervous_tissue_histology.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2ED 5436 bytes
SHA-256: 0dcf098d99fc10e9f9775322fb8d4f8275b9b1acbcb22fcc1a4d202cc9e1825e

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