Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d922673b07ada19…

MALICIOUS

PDF

56.8 KB Created: 2021-06-06 15:26:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feba6ea676a2abbbed76220e133f52be SHA-1: 1e47942681ca9c5a88540392bffd06cd501be7cb SHA-256: 2d922673b07ada199f0793bc5ff6f65c991c506430fc010877cc70cf4add8aed
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, with one heuristic specifically identifying a 'PDF link farm' likely intended to direct users to malicious content. The ClamAV detection and ML classifier also indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9553

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://infrive.ru/pbw?utm_term=actividades+de+oraciones+bimembres+y+unimembres+para+analizar
    • https://cdn-cms.f-static.net/uploads/4412394/normal_601d364ab8387.pdf
    • https://dolopexoje.weebly.com/uploads/1/3/1/8/131872138/f9598f9ce.pdf
    • https://gogadumipoti.weebly.com/uploads/1/3/1/0/131070618/c91c5.pdf
    • https://dujapiloxi.weebly.com/uploads/1/3/1/8/131857305/lamutuxugamidiluzax.pdf
    • https://cdn-cms.f-static.net/uploads/4492897/normal_605c63ea779ff.pdf
    • https://static.s123-cdn-static.com/uploads/4422894/normal_5fe44fc27a617.pdf
    • https://bezujaseda.weebly.com/uploads/1/3/1/4/131437953/bodisinetisas.pdf
    • https://cdn-cms.f-static.net/uploads/4454170/normal_606028a30266d.pdf
    • https://ruwixotuso.weebly.com/uploads/1/3/4/1/134131383/rodazefobamofa.pdf
    • https://uploads.strikinglycdn.com/files/bd4479d5-683f-4016-b627-a61bfd98fd99/free_video_editor_cnet.pdf
    • https://uploads.strikinglycdn.com/files/bb42579c-8750-4d68-8221-baa784f0cbdf/51644436304.pdf
    • http://natizasex.pbworks.com/w/file/fetch/144726432/harpa_crist_partitura_em_d.pdf
    • https://uploads.strikinglycdn.com/files/eaf1e000-9c1a-4436-b6fb-d23687101a34/boburuguguxur.pdf
    • https://uploads.strikinglycdn.com/files/43d38f4a-40cf-4d77-9d21-1c16a48952b6/my_cloud_home_duo_manual.pdf
    • https://uploads.strikinglycdn.com/files/0e64a0bf-fee9-4d70-abe2-1480896076f2/baxutomozafitilubaxugilid.pdf
    • http://didaneguk.pbworks.com/w/file/fetch/144627432/41673642759.pdf
    • http://lekipirunezi.pbworks.com/w/file/fetch/144427962/uppababy_vista_double_configurations_with_bassinet.pdf
    • https://uploads.strikinglycdn.com/files/82dbe842-62bc-4d2c-a590-b8a9f2b114d4/ariel_dorfman_para_leer_al_pato_donald.pdf
    • https://uploads.strikinglycdn.com/files/ea212437-39ef-444e-9718-9786a32f7850/78465703903.pdf
    • https://uploads.strikinglycdn.com/files/1e946cb8-2f19-41f4-b663-2b66d052236a/xumelosiziv.pdf

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