Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ee264f86c10a379…

MALICIOUS

PDF

50.6 KB Created: 2020-12-02 15:18:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcf8c5851e5970c4b38e3201700e6bff SHA-1: 9f41d76707325ceadb41b8a445387252b665f858 SHA-256: 0ee264f86c10a379453aec30758affa9c3062830fa4a43a216b3c01fe373fde0
184 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many pointing to disposable hosting services, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or SEO abuse. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7962

Heuristics 5

  • 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.
  • 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://trafftec.ru/aws?utm_term=landscaping+company+profile+template
    • https://static.s123-cdn-static.com/uploads/4378831/normal_5fc6fe5929038.pdf
    • https://kanolapegagidil.weebly.com/uploads/1/3/4/3/134339460/9084773.pdf
    • https://debemalimuwu.weebly.com/uploads/1/3/4/3/134385929/6741426.pdf
    • https://cdn-cms.f-static.net/uploads/4417413/normal_5fc21e56c7cf8.pdf
    • https://masogipu.weebly.com/uploads/1/3/1/6/131606875/videgenorawirovuwudo.pdf
    • https://vekeliludodim.weebly.com/uploads/1/3/4/7/134745250/sejopaw.pdf
    • https://kezopepeza.weebly.com/uploads/1/3/4/3/134332650/31656bfd.pdf
    • https://cdn-cms.f-static.net/uploads/4451212/normal_5fc32c711e8b4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sebunuzu/videos_do_facebook_online_gratis.pdf
    • https://static1.squarespace.com/static/5fbffe61bf71053ccb0b2b06/t/5fc155e34e98326c02420886/1606505968468/darksiders_3_sloth_glitch.pdf
    • https://s3.amazonaws.com/xedewofuretujo/dikogupudoranujejura.pdf
    • https://static1.squarespace.com/static/5fc2a5b42e537a05ef144f11/t/5fc4ca432dd96f5918846642/1606732356437/tuxoxalanuzikel.pdf
    • https://s3.amazonaws.com/sulasatevirexo/xavumovafipitonubiziko.pdf
    • https://uploads.strikinglycdn.com/files/a2db7ed9-dff0-4247-8040-22729dad1bf7/levikesanunonagaxurez.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000afb8.bin
d54b1657b4adbf5ecace20cb89435000a7f4457a7c2a7b74078b7deeb71fbba0
pdf-font-stream PDF embedded font (sfnt) at offset 0xAFB8 5516 bytes