Malicious PDF — malware analysis report

Static analysis result for SHA-256 cef18fe42483f5ac…

MALICIOUS

PDF

56.2 KB Created: 2021-01-12 16:52:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ee024e5b8c866508e1634d6aeacc21b SHA-1: 93dd0ebb286e97045ce05767d84aad9ccade767f SHA-256: cef18fe42483f5ac8cb376b47ebc3a730fc9dc68122750bcfa4c4d95a47f57e1
154 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Wolf girl and black prince episode 10 vf' and exhibits a PDF_SEO_LINK_FARM heuristic, indicating it contains a mass of external links. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the numerous external PDF links are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7874

Heuristics 4

  • 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
  • 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://traffset.ru/wb?keyword=wolf%20girl%20and%20black%20prince%20episode%2010%20vf
    • https://jedapozopimu.weebly.com/uploads/1/3/4/6/134614290/5acd75b0e49301.pdf
    • https://site-1176216.mozfiles.com/files/1176216/nexoxupipado.pdf
    • https://xuxufagitagagi.weebly.com/uploads/1/3/0/7/130740521/8607284.pdf
    • https://jawifeguviweti.weebly.com/uploads/1/3/2/3/132302916/4909572.pdf
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/fdb1598e.pdf
    • https://rurawovupotoli.weebly.com/uploads/1/3/4/0/134017211/juzalawixafit-fexipotis-vizozot.pdf
    • https://redoperi.weebly.com/uploads/1/3/4/6/134686713/39f2e46e.pdf
    • https://site-1174503.mozfiles.com/files/1174503/google_sheets_if_then_statements.pdf
    • https://cdn-cms.f-static.net/uploads/4467325/normal_5faee765ecc74.pdf
    • https://kovelikazaw.weebly.com/uploads/1/3/4/7/134705675/5606527.pdf
    • https://noderewowiful.weebly.com/uploads/1/3/4/5/134596184/7696249.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb1a.bin
d99b3aac5735c06b1ad9a11f986504b2c695697e89b303ba41304e3946e7053a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB1A 5796 bytes

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