Malicious PDF — malware analysis report

Static analysis result for SHA-256 3295760ad7a56782…

MALICIOUS

PDF

82.0 KB Created: 2021-03-14 17:01:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9d460377658433a1330adb41b54f1017 SHA-1: 5a2038a49509e397ef226d21a6854869563d0d21 SHA-256: 3295760ad7a567825adf6ea03cdfae013aabc46c0484ea565e923186aeae4d15
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 0.9998

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://resalured.ru/strik?utm_term=bose+av3-2-1+media+center+service+manual PDF link annotation
    • http://trickyturkey.com/pifaneg7fejj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383138/normal_6021f9382ec14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404112/normal_60323a24c6d29.pdfIn PDF document text
    • http://biomanua.website/jexivimumokisosefutynry7.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/xafaxotaful/why_wont_my_lg_dryer_start.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7acc1879-04a2-44da-8d82-3445c1644259/olympic_weightlifting_program_for_novice.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/newsletter_templates_for_preschool.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e92027e3-faff-4261-b1d5-8f30db89d663/how_to_flush_my_rheem_tankless_water_heater.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1261c6a-ce92-4540-9b94-19cec3151f2e/opentx_companion_2.2.2_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c55177d-840b-4c9a-be3f-9ee5cc0c95d2/27995995786.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc795ba7-d7ce-4392-9340-dccb2798371e/91027623627.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c59f3a0-a8b6-490c-bd97-ca13eca595d8/beyond_bigger_leaner_stronger_2.0_release_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e54e2e28-f570-45de-aa50-cb9153ff8d21/52527932243.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/732d55f4-0ac9-467d-966b-a998b44d5878/48184129555.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/auto_json_formatter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac1446fa-3efb-4bb4-88a0-7e68e94f28c4/93624174328.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/xepixogono.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96a8af52-a8ba-415d-bb48-5cafd79180d4/geloxiwarudapamikawo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47183cbe-ba37-4923-afc3-c9c1fb38a7d7/42582144350.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_off0000f82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF82D 5576 bytes
SHA-256: 35dabee7100ec0e4d0c847c54a12ee91a6580ebc1a4b2d757000594f13bb78ca
font_01_sfnt_off00010b1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B1D 14120 bytes
SHA-256: b822862666971f04e1f5ab4b037a1dcf06c096a3abc823c7690f911c0da93816

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