Malicious PDF — malware analysis report

Static analysis result for SHA-256 e35172d36706ba27…

MALICIOUS

PDF

95.3 KB Created: 2021-03-18 20:41:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6350cc6e18caaa62c528c1aa12eb1834 SHA-1: e4ef420a2a285afdd104534fe89717b7b5e28645 SHA-256: e35172d36706ba27aa03a1d163f84891030c4ccc412b004576043c962aee3ed2
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely a phishing lure. The PDF structure and embedded content suggest it's intended to trick users into visiting a malicious website, potentially for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/award?keyword=g%25C3%25A9ographie+politique+definition+pdf
    • https://cdn-cms.f-static.net/uploads/4458144/normal_6035ceec13c8e.pdf
    • http://tiktoktop.design/how_to_dispose_of_smoke_detectors_in_new_york_city1kvja.pdf
    • https://cdn-cms.f-static.net/uploads/4369316/normal_6030d94ca62bb.pdf
    • http://sokfresh.fun/5950079086kog0i.pdf
    • https://static.s123-cdn-static.com/uploads/4464083/normal_6002ecdc6b9bd.pdf
    • http://bukejasinopa.22web.org/master_of_business_administration_courses.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://rojapaj.epizy.com/semuxojesugulapozifuda.pdf
    • https://uploads.strikinglycdn.com/files/f0b6a17b-756d-4385-b833-06b8aef10447/ginelekudafel.pdf
    • https://uploads.strikinglycdn.com/files/34dca956-e59a-4d98-91b7-b39322ed6810/57462151435.pdf
    • https://uploads.strikinglycdn.com/files/08defc16-15a1-4bc7-bd08-1b47f1957030/98059859725.pdf
    • https://uploads.strikinglycdn.com/files/bbb09b87-3653-41d6-8494-2f12998a9dda/harman_kardon_onyx_studio_4_manual_espaol.pdf
    • https://uploads.strikinglycdn.com/files/ef87d3b7-b706-4b02-a945-13461361c055/sandisk_sansa_clip_zip_reset.pdf
    • https://uploads.strikinglycdn.com/files/db2f8593-3c1d-464b-8c05-9d4f472eafe5/caracteristicas_de_la_forma_de_gobierno_republica_federal.pdf
    • https://uploads.strikinglycdn.com/files/a70036de-cd26-4cff-bf70-ae2b73c57537/how_to_get_sat_math_score_up.pdf
    • https://uploads.strikinglycdn.com/files/09157f0f-1afe-4bba-9fd4-508f4f7c781d/what_does_the_term_tee_off_meaning.pdf
    • https://uploads.strikinglycdn.com/files/caaaeed9-2379-4405-a150-6a43b76919f1/16309187416.pdf
    • https://uploads.strikinglycdn.com/files/55ec260d-dd1d-4976-8208-838cf4ca55f8/wuxakifenodilanoxaluliku.pdf
    • https://uploads.strikinglycdn.com/files/851bdec5-031c-4101-bdde-89f2f4c2c450/polar_coordinate_paper.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001246b.bin
1bfaf42acda20badf5be295115e12d508e2d90be0217f4d6fe04edde344b671c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1246B 5304 bytes
font_01_sfnt_off00013624.bin
1c704b090a7bea6b35ae468fbb1757fc239835c7ab5d3a3040bbea648e7c217a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13624 13184 bytes
font_02_sfnt_off00015fa6.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15FA6 4324 bytes

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