Malicious PDF — malware analysis report

Static analysis result for SHA-256 57e38bbda24d2319…

MALICIOUS

PDF

52.6 KB Created: 2021-02-07 07:54:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 3e7820dd906d44557f9242f72a0df011 SHA-1: 1e277679219fe039a0b63a349579703c48527b0c SHA-256: 57e38bbda24d231962c6a1d410d68039c83d01fbf33a253f3ed209ab093ffb0b
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous external links, many of which are hosted on disposable domains, indicating a link farm or SEO scam. The ClamAV detection and ML classifier also flagged this file as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, contains keywords related to "Fda nutrition label guidelines philippines", suggesting a lure to attract unsuspecting users to the malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6878

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://baarspo.ru/aws?utm_term=fda+nutrition+label+guidelines+philippines PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4481528/normal_5fe4e5afcc87b.pdfIn PDF document text
    • https://naxizugopigonav.weebly.com/uploads/1/3/1/4/131408516/tinazomutatepok.pdfIn PDF document text
    • https://cdn.sqhk.co/wujugojuse/ciagjh2/fulojiris.pdfIn PDF document text
    • https://cdn.sqhk.co/mitugejaxel/jRBjgEl/79263598901.pdfIn PDF document text
    • https://cdn.sqhk.co/sakupiraf/ZghjbPd/viral_video_today_tiktok_star.pdfIn PDF document text
    • https://sibitolifi.weebly.com/uploads/1/3/4/7/134732274/8235737.pdfIn PDF document text
    • https://gomafaned.weebly.com/uploads/1/3/5/2/135296522/f77a47a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459028/normal_5fe76a18cc5ba.pdfIn PDF document text
    • https://vowagogo.weebly.com/uploads/1/3/5/3/135307183/4007832.pdfIn PDF document text
    • https://cdn.sqhk.co/finulepaf/jdihja9/nba_2k20_myteam_how_do_contracts_work.pdfIn PDF document text
    • https://judadumoxa.weebly.com/uploads/1/3/4/7/134718892/kegenekigarobi_bowegabel_senosuviv_xidotuz.pdfIn PDF document text
    • https://dusomekekonipa.weebly.com/uploads/1/3/4/5/134580960/4eb662e.pdfIn PDF document text
    • https://cdn.sqhk.co/mujekesire/arNZwjh/gironalubopepupotuso.pdfIn PDF document text
    • http://sewadereweben.epizy.com/vubasejomilisawag.pdfIn PDF document text

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