Malicious PDF — malware analysis report

Static analysis result for SHA-256 60ac83276dbe41c6…

MALICIOUS

PDF

74.3 KB Created: 2020-11-19 13:09:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 30a00d9270cf55ff65b84ec374c4311f SHA-1: 0857fefc9fab25bea6697c832c4c6b51f269f9be SHA-256: 60ac83276dbe41c6ef8abc52253cb39589bf492957ad0ab3deec2ba7bbac50de
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-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://traffking.ru/strik?utm_term=el+peque%2525C3%2525B1o+nicolas+resumen+por+capitulos PDF link annotation
    • https://rixokofumi.weebly.com/uploads/1/3/1/3/131380985/fikamadal_modufasaw_lufikugiwiso.pdfIn PDF document text
    • https://pezusadoti.weebly.com/uploads/1/3/4/5/134525395/bugifuz_gunoga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388424/normal_5fa8ad8873905.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380681/normal_5f8ebf2d6ef40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370560/normal_5f919c7387d1b.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/9bad42ca-6dae-449f-aad3-c8fece758a4e/ds_roms_unblocked_at_school.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/hunger_games_book_2_download_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c62b4c0c-19d5-4aaf-889f-ddb3a7141fc8/zheng_rule_34.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a72f026-9f4d-4a2d-b1d5-69b7e5ada077/antibioticos_para_infeccion_estomacal_en_nios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5447e1d-687c-49d1-ad9e-2f7b7b682c71/fepikuzesiludenafok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98781608-331c-42bc-8d34-ade8c7bbf377/mount_olive_cemetery_chicago.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80e15a6a-9ae9-4a0e-abad-a95bab5f39fc/9279346228.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_off0000e1e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E5 5372 bytes
SHA-256: db4dbd106634d7acc2428e1cc05027770bd7bf46c627b651a10d53452f2f7f38
font_01_sfnt_off0000f3db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3DB 12040 bytes
SHA-256: d6c2c57627ebbc8e3b85ecf4b0e50cfc5e27fb157e110dc53ed52926c4b5132a