Malicious PDF — malware analysis report

Static analysis result for SHA-256 960375f7fc89a565…

MALICIOUS

PDF

67.6 KB Created: 2021-02-20 18:03:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45c0e7cf87a808d70c1ab12a306f79f0 SHA-1: 74520e23858a11f6d3b17b56dcd9c5f9e4122ad0 SHA-256: 960375f7fc89a565d9847ec1fd25bb76a73cd5c89326c045e849e5c5e64227b9
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to redirectors or link farms, indicating a phishing or SEO poisoning campaign. The ClamAV detection and ML classifier further support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to malicious sites, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9498

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://yafferge.ru/aws?utm_term=how+to+get+custom+songs+on+oculus+quest+beat+saber
    • https://cdn.sqhk.co/jebavimot/yC2Fje4/bomurajovalagebivibikoki.pdf
    • https://cdn-cms.f-static.net/uploads/4408706/normal_601b8a9bb8547.pdf
    • https://gilamasizate.weebly.com/uploads/1/3/0/7/130775108/9ad88171d63.pdf
    • https://cdn.sqhk.co/fimegasaz/hSwjdge/2020_solar_tax_credit.pdf
    • https://static.s123-cdn-static.com/uploads/4386595/normal_6001407f521e0.pdf
    • https://cdn.sqhk.co/fazituku/jejfqdf/coin_master_free_spins_and_coins_daily.pdf
    • https://cdn.sqhk.co/nojedajoze/s4yRfhj/jowinivanoredok.pdf
    • https://cdn.sqhk.co/tesadubozino/jd5Uojd/street_fighter_4_characters_list.pdf
    • https://cdn-cms.f-static.net/uploads/4479446/normal_602a7b14ee3c5.pdf
    • http://mejarada.iblogger.org/acland_anatomy_free.pdf
    • https://devitigofe.weebly.com/uploads/1/3/1/0/131070043/2959002.pdf
    • https://cdn.sqhk.co/sarodeduz/hgjahi6/juletabiremajozuposapati.pdf
    • https://cdn.sqhk.co/gulaxemetila/ijhhZjf/politics_and_prose_dc_contact.pdf
    • https://cdn-cms.f-static.net/uploads/4420743/normal_602aa978ee6c0.pdf
    • https://cdn.sqhk.co/menasimax/bjj65MD/30_seconds_whatsapp_status_video_download_2018_punjabi.pdf

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