Malicious PDF — malware analysis report

Static analysis result for SHA-256 306bcfb74a3dfc5e…

MALICIOUS

PDF

61.1 KB Created: 2021-02-09 12:01:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e207c07066189bdfe978d3d691393d8c SHA-1: 33108de66d8554e6b05e034a99c4a97d9a6cad36 SHA-256: 306bcfb74a3dfc5e077e371ebf79691f383ad98936cc4e610cb656162b0dba74
124 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs pointing to disposable domains, a common tactic for phishing and malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags this behavior, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or trojan delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9757

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
  • 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://leonvi.ru/aws?utm_term=girl+guides+ontario+cookie+ordering PDF link annotation
    • http://shoppermarket.online/bubawunivesobefhh6b.pdfIn PDF document text
    • https://cdn.sqhk.co/buxoxurobewi/2P9ggic/kuguwogobalapotutatuweda.pdfIn PDF document text
    • https://cdn.sqhk.co/monazaxumol/idifHja/jelly_filled_cupcakes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422914/normal_5ffe6e26dabd1.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxosutuku/fKgfjcQ/71192737417.pdfIn PDF document text
    • http://shoes-storie.club/knight_of_wands_health_outcome7pyun.pdfIn PDF document text
    • http://eagleaff.com/born_this_way_lyrics5xhrf.pdfIn PDF document text
    • http://voicebftyi.com/athens_tech_nursing_intent_formglzss.pdfIn PDF document text
    • https://cdn.sqhk.co/wojusipi/iOgchh2/top_10_hockey_prediction_sites.pdfIn PDF document text
    • http://thesimplycompleteseries.com/4805450694782o0y.pdfIn PDF document text
    • http://storeyou.store/mds_risk_literaturegm8sc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484814/normal_5ff183490348a.pdfIn PDF document text
    • http://vykupavto54.ru/cornerstones_for_community_college_success1g7ds.pdfIn PDF document text
    • https://cdn.sqhk.co/xonafelog/Ahhobhd/xtreme_soaring_3d_forum.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://renureva.epizy.com/teenage_movies_2017.pdfIn PDF document text
    • http://buvodomugefun.rf.gd/nccn_guidelines_breast_cancer_surveillance.pdfIn PDF document text
    • http://jexusapije.epizy.com/vufunuxogowebe.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2DF 5204 bytes
SHA-256: a9d3909e71a247aad298d49af00b176f9da715ae16a63614d6aa74984747c3f2
font_01_sfnt_off0000d4a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A5 11144 bytes
SHA-256: 627227aa2042fce82ddaf9d9519a128a60e687116b12ac534337767687303a44