Malicious PDF — malware analysis report

Static analysis result for SHA-256 644218f9dac1e6f9…

MALICIOUS

PDF

73.8 KB Created: 2021-03-22 02:11:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 169b3f9537287b6d8feb4d17515316a9 SHA-1: 10f6b6c6ac6dbdb4e614d96e1c4e9438cea1eb9e SHA-256: 644218f9dac1e6f9fe6561d84dce06669c8442973a136581b6dd1c40d0b9f1dc
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://gimoguvi.ru/wix?keyword=carrie+fisher+book+pdf PDF link annotation
    • https://cdn.sqhk.co/xevuvuxene/hjjihCq/f4_phantom_jet_model.pdfIn PDF document text
    • https://teraludejos.weebly.com/uploads/1/3/5/3/135304334/bagivu.pdfIn PDF document text
    • https://cdn.sqhk.co/xixujipum/OKZY3jg/82495628660.pdfIn PDF document text
    • https://cdn.sqhk.co/defisepeniba/QickI9S/midofuziwu.pdfIn PDF document text
    • https://duxotitur.weebly.com/uploads/1/3/4/5/134596147/6523248.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/189e8f99-9ddd-431a-bc00-91e8c44c90c1/what_happens_when_you_have_a_w_on_your_transcript.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/bevelumeguxisanavokowaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/marozepujeditelix.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/ankho_ko_teri_aadat_hai_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/41101480291.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/14861323755.pdfIn PDF document text
    • http://walugiguzav.epizy.com/bizuxurobefezesuxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad42ec56-d0eb-46e2-ad42-ab349e84b45b/gafineboxazo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3714ce7d-5717-4df8-bdf9-f86fe2d31654/easy_cartoon_characters_to_draw_step_by_step.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a8c1647-7312-406c-9762-f1c07ae0e614/43968336175.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4d4cf7e-f64e-4b4f-a281-d4bcf7eb6ee9/melhores_cursos_de_ingles_avanado_online_gratis.pdfIn PDF document text
    • http://sawujasasit.epizy.com/sorebewezisamip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c2f91c6-1165-4e8b-b65b-a90bc451e0b3/nizejuna.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE194 5208 bytes
SHA-256: 1910e2dbe049b7dfef1fe5b604b7a05c87d35794d08c782f77755ab39fa95793
font_01_sfnt_off0000f33f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF33F 11504 bytes
SHA-256: 7a8c66fac0e3fc4f94131b3868550d9b8e4609e0ae5a1dde3a41fb0c1c14779d

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