Malicious PDF — malware analysis report

Static analysis result for SHA-256 58e7675e5d15d919…

MALICIOUS

PDF

66.0 KB Created: 2020-11-20 06:14:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7ea66fa2246a683f17df26f157f4eec6 SHA-1: da346ba55d166a313ab84c79ced3e90fa38d60b0 SHA-256: 58e7675e5d15d9198d8e74382888d2b939d270031d1ec7fc6a2de242393d15ef
96 Risk Score

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-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://trafffe.ru/strik?utm_term=lonely+island+album+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417221/normal_5fa5b35e280b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450502/normal_5fa83bda6f1fd.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/dce03ad9-76d9-4994-8c96-0751cb96f75c/color_pencil_art_fish.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0202971e-342f-4fdf-8740-f80b0b5d1b45/6_pieds_3_pouces_en_cm.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1658bc3-5d13-40b3-a3e7-cfc669b60712/97088520821.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7a225cd-6056-48c0-a637-263faccd666c/jesuit_high_school_dallas_football_scores.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38838efd-21cb-4932-8fff-71e73d9c6d07/22835368689.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3f558d0-2d03-4d3c-ab99-74743b2cf97d/vipopizefotaponasanorivar.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/66148656423.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c49d2721-cf64-4737-8d27-534619a4ae03/transformada_inversa_de_laplace_tabla.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e4c5829-d249-4df2-9ddd-350563f911ef/49905039471.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/apuntes_de_instrumentacin_para_bandas.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_off0000c428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC428 5152 bytes
SHA-256: b88bf127bf8eeecdd4b3678b7201d9f7c176e798784bf0b5099525dde93242ff
font_01_sfnt_off0000d5b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B5 11020 bytes
SHA-256: ea7a3a602d1f0045c00652695dcadc795837d42936334e43a60b044eb553d230