Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a02697be950975a…

MALICIOUS

PDF

66.2 KB Created: 2020-11-20 00:55:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d8d3eb119e0df79f2443f07ec6c95f12 SHA-1: dedabc74bdeb98d84e280e6c53f882516ee8f0d8 SHA-256: 8a02697be950975a96a426371ddc410624ab08d04df42197734572f8b1487565
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://traffset.ru/strik?utm_term=polipasto+definicion+y+formula PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407087/normal_5f9d51a31bad8.pdfIn PDF document text
    • https://kuxunudizovisaj.weebly.com/uploads/1/3/4/3/134321976/969b233a8e8e.pdfIn PDF document text
    • https://janewabogub.weebly.com/uploads/1/3/4/4/134483822/zalanifi_mibik.pdfIn PDF document text
    • https://jokatilowiwege.weebly.com/uploads/1/3/4/3/134369617/1823705.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409098/normal_5fa2cb9fef5c8.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/94da70be-6b63-431d-92b4-2c22aca564ae/kegikiwi.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/verbs_starting_with_mer.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/71324262240.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c518bb37-d9e9-49f4-bcd6-96aceb1c08de/transformers_forged_to_fight_apk_download_uptodown.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/basic_english_conversation_lessons.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55355c04-d6db-4562-97ea-bf04f7ea9d52/jolazelizivoro.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_off0000c4c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4C2 5404 bytes
SHA-256: 45eadb7203bf39c7dcf87cf62cb2bba8b142f6bad1e00957b607bf26e2615542
font_01_sfnt_off0000d71c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD71C 10816 bytes
SHA-256: 51b1e8410d48878d2fc4d2327f68f57b9e2ef2438aa07e0b09aeb08c9b6645e4