Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ab0e356701dccca…

MALICIOUS

PDF

74.4 KB Created: 2020-11-16 18:54:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: fca8d03296a9030df297955b435287cd SHA-1: d9975433a25c1dc00a84434bb7632934cbf50d7d SHA-256: 7ab0e356701dccca967383ea1b244a7647506c5c895e9db9bde8c9dd4577c11d
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://trafffi.ru/123?utm_term=linear+and+quadratic+inequalities+worksheet+pdf PDF link annotation
    • https://sutisivanopazar.weebly.com/uploads/1/3/4/3/134310164/mudemojebad-devetote.pdfIn PDF document text
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/gipujowoxebukafixi.pdfIn PDF document text
    • https://pixijitawe.weebly.com/uploads/1/3/4/5/134593468/lufedizovupitukewu.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/5fa7d768-39cd-4b75-ad90-bde024dbe7c3/poweramp_unlocker_3_build_301.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d99caef-3cbf-40c2-a2a7-bae3293311a6/neuqua_valley_high_school_ranking.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/best_no_lag_minecraft_shaders.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/fuputu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef76501e-c105-4639-b5d3-282e3804281e/2489739156.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/unalienable_rights.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/world_history_answers_keys.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a43e8623-ba9d-4be8-8ec6-36c686df3c4c/40179352054.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd087165-ee2d-48ee-883d-7f96d54d86ed/xekafanod.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_off0000d7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CD 5468 bytes
SHA-256: b994b9a757210564becd896796d927312c822df0c1fef62e7b227eacbd02e234
font_01_sfnt_off0000ea78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA78 15060 bytes
SHA-256: f821a830b04a5df3bc5a8262482e302fd08cb54fa7d17452f064f4530b7e6831