Malicious PDF — malware analysis report

Static analysis result for SHA-256 725ada91dabf8fce…

MALICIOUS

PDF

89.9 KB Created: 2021-03-18 12:17:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: af335d4d817303bbaea773defdcd3cdc SHA-1: 13a927b9b01f8b1e4d1692c045a1acf826467165 SHA-256: 725ada91dabf8fceb7527b95f10eeb0fef8c7789c08488eca74968d95357ce4e
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 0.9996

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://jottigo.ru/123?utm_term=canadian+election+platforms+2019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366003/normal_60304345ed839.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421776/normal_6019983756bec.pdfIn PDF document text
    • http://dusinetukuzif.22web.org/niruxosanozupoj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393370/normal_600360719729f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412387/normal_6000d960f2b76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471692/normal_602cd8a54af43.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/44a460af-07da-4bf5-95c6-dd7169d607b2/how_to_access_my_cloud_ex2_ultra_from_internet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cec8452e-c27f-4af4-8aa1-2c36e120df8e/sejopabugujo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d68ca86-0244-4365-9353-140a224ff4af/91012810579.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3145dab-149e-4e82-bc4d-b5b8bbc13d52/pekezaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25ee746d-d160-4d10-981b-09623ea8efeb/fesigopilozaxe.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/combination_and_permutation_worksheet_doc.pdfIn PDF document text
    • https://s3.amazonaws.com/lopeteb/jafavupuza.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/canon_ip2700_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/505dc4f2-13ce-43cc-a7be-ebc5bf78fcea/mojidunowuli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91d3b9d1-defd-4c76-a7c9-f099953d62e4/difimojuzi.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/setbackgroundcolor_drawable_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/321c88b6-73ce-4411-a7ab-7759e092aef8/will_r6s_be_on_ps5.pdfIn PDF document text
    • http://xawabaxazulaga.epizy.com/ferrari_carano_siena_tech_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bda704ab-0ab6-4906-bd4d-02ba9d99b3b8/bosch_dishwasher_silence_plus_44_dba_not_starting.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/engineering_lettering_guidelines_2_4_4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f44a2f9c-28ff-430a-8e5f-0f0c93031c02/fender_passport_event_used.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_off000122f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122F5 5688 bytes
SHA-256: 363ba0eb9ea68e6924953b49227b30137cde2731a12c552eb87d7fc097e36f67
font_01_sfnt_off00013637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13637 10640 bytes
SHA-256: 275493b56baec02be8e50c4ddfa6c2962bb231546e97d4337b271aafa876d02d

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