Malicious PDF — malware analysis report

Static analysis result for SHA-256 082022f5ba221217…

MALICIOUS

PDF

73.8 KB Created: 2021-06-10 11:25:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 319f51051539fc8eabfb312ab669d0c0 SHA-1: d5fac47e382bc509bd1f46f60e79c64307dca7f6 SHA-256: 082022f5ba22121725d56812957e9def1479bd3713b17964c9bbd45b9a1759c2
154 Risk Score

Malware Insights

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

The PDF file contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm for phishing or malware distribution. The presence of 'fortnite account generator list' in a URL indicates a lure to attract users interested in gaming-related content. The ClamAV detection as 'Pdf.Phishing.Trojan' and the ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8924

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://laborke.ru/uplcv?utm_term=fortnite+account+generator+list PDF link annotation
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a42d6cd3f6a---21606547216.pdfIn PDF document text
    • https://artlabjo.com/userfiles/file/69940072472.pdfIn PDF document text
    • http://pospatrans.cz/UserFiles/File/nirakirudizavewote.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acb2e50b473---19099236680.pdfIn PDF document text
    • http://ahchala.com/img/file/tojopojogupefuju.pdfIn PDF document text
    • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608b12014c165---jozojuzudojofapuganidakin.pdfIn PDF document text
    • http://clarksville.net/wysiwygfiles/file/lufawanu.pdfIn PDF document text
    • https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/2ce6df79df84bc66d00111e27084e7b9/57325707706.pdfIn PDF document text
    • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078602377f43---kelubonukokewonojibonubu.pdfIn PDF document text
    • https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/2d9c10c51e8b5f18966dd8c5ae1b8738/sigokasunu.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16084aeea73071---94600116334.pdfIn PDF document text
    • https://pametnidom.hr/pametne_kuce/userfiles/file/zamalimovezorazupoziva.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/8ttjp46hln3mkibrs1kv1odvas/lifiwi.pdfIn PDF document text
    • http://chnli.tw/CKEdit/upload/files/95607213967.pdfIn PDF document text
    • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16096282dc0d79---silitonaxa.pdfIn PDF document text
    • https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/5rq9njvt2272d94j3ufcgcc4u8/82933292694.pdfIn PDF document text
    • http://fatamorgana.fr/uploads/assets/file/tegamanadudelutef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000fee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEE7 4924 bytes
SHA-256: d8400d7f3f1460d43c316446bbe11f3398993e8d00479b0f045fd1aa88377bee

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