Malicious PDF — malware analysis report

Static analysis result for SHA-256 d34d65478e32c25d…

MALICIOUS

PDF

64.0 KB Created: 2021-05-01 00:37:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec57d3054cc5709572d3c689b314ed65 SHA-1: 245692bfb78c188851a6d603ee09b984f8b1cfdb SHA-256: d34d65478e32c25d99904ae94d749657b6c543faab5e38c30c9f0441e00fdf8c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links pointing to compromised websites, indicating a link farm designed to lead users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. No scripts were extracted, but the structure itself is the attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9639

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://akapacha.com/userfiles/file/71608163555.pdf
    • https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/196f798eb78a26ceb9c117904fef7831/64532205000.pdf
    • http://absolutelyneon.com/userfiles/file/43364621324.pdf
    • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/25b8dae31ea224d946fae3aba5858ae7/faloxoxamejer.pdf
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608b012eedde0---kepanijuvomopexetu.pdf
    • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/337a66a7e8b2fcfeaa7fa200a08fa871/zifekagixowasegir.pdf
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f7eb81f0cb---11125259613.pdf
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160731d76294e3---dudidoxejekuvefali.pdf
    • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/34554f5f81a8277ebbba3b83cd1ce968/lofewidisaxi.pdf
    • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/268cc5d77e096d6cf3180e40c5b75581/51702338694.pdf
    • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a9495c3cbb---55907459918.pdf
    • https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/kuh2kljefljbddfo5p0pkic2hf/jaxiriximojipojer.pdf
    • https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607787d3b35d6---wexoje.pdf
    • https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/052e2290718a3aecdb1487ac26857f88/naberevafe.pdf
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070b2721b40d---gebufudavadekizosipizolim.pdf
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/2b103bf5bb19cd9160610565364429ea/tuvemimorowuwozilodipozi.pdf
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/gn85kputljm6nqikb1a9tgndt0/lanuzivibubasel.pdf
    • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607550a90df99---nelone.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=cisco+bgp+config+guide

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