Malicious PDF — malware analysis report

Static analysis result for SHA-256 246740a2bea97b48…

MALICIOUS

PDF

81.0 KB Created: 2021-03-17 18:56:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: f61f01f65cf420e0006a14d83bdea86a SHA-1: f4718ce48b4e1e3162350bd8b44da5eda8d107e7 SHA-256: 246740a2bea97b48b4ae018db5aea223506c8b70f08b99a62424211e4cb26f28
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan. It contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing lure. The document body, though heavily obfuscated, appears to be related to search terms, reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gimoguvi.ru/aws?utm_term=honda+eu20001+oil+change PDF link annotation
    • https://cdn.sqhk.co/zuzememub/hfFgghe/84455798654.pdfIn PDF document text
    • http://justiciaforjustice.com/wulaxodilizefuglpmwt.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/7HyxQ05/phase_card_game_android.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489994/normal_6032c6e489a18.pdfIn PDF document text
    • http://netzamka.ru/reference_workbook_and_worksheet_vba6yxvl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428045/normal_6018f4bfcd59e.pdfIn PDF document text
    • http://leoidet.xyz/what_is_the_purpose_of_a_stock_indexbgols.pdfIn PDF document text
    • http://chelamela.org/dolamelimudafun3cy5.pdfIn PDF document text
    • https://cdn.sqhk.co/dofexoxev/hCif2jh/ancient_rome_warm_up_questions.pdfIn PDF document text
    • http://findssldz.xyz/barriers_to_innovation_in_the_workplace9hqbd.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/19f9faf5-1339-4688-a88b-ce6e35626a0f/93341818683.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93396562-3b94-4cb6-9ca5-623949afabbb/6638420171.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88cc48b0-aa45-44b3-9ebd-5072271eab16/stick_and_rudder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb11cdea-8966-4aaa-9460-ef2913511804/xirevubovijanud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41e09596-c54e-4cc5-a027-1e7bfc58b4ef/xaxovakosagodosuluxogo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/077bfba7-fc4d-406e-92ec-feecae622702/91545112648.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e436caef-d9b1-4e08-b8b6-c133d811d45c/all_trigonometric_formulas_for_class_12.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/301bfbd9-ff58-46a7-9acd-bb27d7c1d039/vewef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42be32fa-df50-40ab-bbba-70ad6d8ec697/fakawotelugeli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6690e013-247c-488c-802f-212965e1fc37/family_photoshoot_studio_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/066bb558-e18c-4d28-86f4-60f36b22ce3a/how_to_learn_korean_alphabet_easily.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9d6ba02-a2e9-455a-9bdd-649ac639a063/mid_module_assessment_task_7.2_answers.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_off00010107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10107 5212 bytes
SHA-256: b678536ac33da394d02649bcbb391e73bdd91f6fb1ee9097634dd0d02a6b2c9d
font_01_sfnt_off000112c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112C2 10596 bytes
SHA-256: a90a093e569d89a41f0dcd7bfb89b12c7a7fcf00f6f52e0db4491b5f7301d4e1

Open this report in the interactive analyzer, or submit your own file for analysis.