Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cbc0b8345cc1e76…

MALICIOUS

PDF

49.6 KB Created: 2020-11-13 09:21:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: b7a594e5cde312da5d740af4beda80e7 SHA-1: 9d9827fb731dea2254b8e74da97265f27ca532d8 SHA-256: 3cbc0b8345cc1e76e752ab53d1b84230aeae86cc9dd1a9e10e4658432dbc7ebe
242 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links to external websites, many of which are hosted on disposable domains and appear to be part of a link farm designed to redirect users to malicious infrastructure. The presence of a link to 'traffking.ru' with a 'lawn care flyers templates' UTM term suggests a lure to disguise malicious intent. ClamAV and ML classifiers also flagged this file as malicious, indicating a phishing or trojan distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6925

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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffking.ru/aws?utm_term=lawn+care+flyers+templates In PDF document text
    • https://gagumosesixibo.weebly.com/uploads/1/3/4/0/134018544/3855ac525862c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384295/normal_5f9d5cd668e8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370791/normal_5f92b0b2c0475.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/xowirokagejewu_xorikuno_tidipawane_xorisomeni.pdfIn PDF document text
    • https://xulajaxosu.weebly.com/uploads/1/3/4/3/134366267/wobazuza.pdfIn PDF document text
    • https://lakujasoramaw.weebly.com/uploads/1/3/4/4/134400634/2760744.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374175/normal_5f8a17a93c827.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/7805117.pdfIn PDF document text
    • https://sizojupitad.weebly.com/uploads/1/3/4/3/134332657/56f0c121c6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ccfbe56-1905-456b-9971-a15c04bdace0/74489511716.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79886a4a-531b-427e-9add-01e44b1ffe19/ropab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf929983-6555-4136-95c7-42c8b53452aa/norupexikalelopudinexeg.pdfIn PDF document text
    • https://s3.amazonaws.com/bubisifapagefe/alto_saxophone_disney_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9ea7a0a-3c0a-490d-a399-152634449430/45303844513.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/didiferegegabalora.pdfIn PDF document text