Malicious PDF — malware analysis report

Static analysis result for SHA-256 373b9e0b67f17c2e…

MALICIOUS

PDF

81.4 KB Created: 2021-03-01 18:25:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: d4b3778ecea2d27c9ee7fc7e7a339634 SHA-1: 0409b2f29f07fe6b0e54eec901409d1f875df7bc SHA-256: 373b9e0b67f17c2e2747355afe1222eb6aa7f9184c1879744171e6f715495152
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics as a potential phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of external URIs suggests the document is designed to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/strik?utm_term=the+postman+always+rings+twice+movie PDF link annotation
    • http://scrlt.xyz/batovilumirajomimitabtnljn.pdfIn PDF document text
    • https://cdn.sqhk.co/vunalogivefu/mlibnje/50685614543.pdfIn PDF document text
    • http://politach.com/baldis_basics_mod_menuvlpk8.pdfIn PDF document text
    • https://cdn.sqhk.co/ranemagesoga/eQ7nFex/nintendo_switch_carnival_games_best_price.pdfIn PDF document text
    • https://cdn.sqhk.co/fivodewile/e8ijVKG/how_to_get_free_stuff_from_beauty_products.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gogonof/dawn_of_isles_apk_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/cuantos_litros_caben_en_1_metro_cuadrado.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/83088341934.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/esc_guideline_heart_failure_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/likufuzo.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/jury_duty_los_angeles_reporting_time.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/azshara_guide_classic.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/51940141370.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ffc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFC1 5552 bytes
SHA-256: 00bc046c97cb8c02cd3267f32515838909d6f46bebbbdc1447bdde9762649e6a
font_01_sfnt_off00011294.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11294 11364 bytes
SHA-256: 24a8f9c0074ed6e3c922c99c1b64747bf7daae43d4fbd1093db5339477e83064

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