Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a523a23f471c5f1…

MALICIOUS

PDF

77.8 KB Created: 2021-03-16 07:57:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e1076d073c5ae007b3340151abcf030b SHA-1: db7639a657315baffc11b51c4a513d808e0688e9 SHA-256: 7a523a23f471c5f18890c1557a8bc373ea7e7598d8d35879f053a786b5f679e0
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://gimoguvi.ru/strik?utm_term=simple+trigonometric+identities+examples PDF link annotation
    • https://cdn.sqhk.co/pigajifaw/3giijNb/7898666404.pdfIn PDF document text
    • https://cdn.sqhk.co/tusufawenu/dPpCbLr/lego_batman_beyond_gotham_apk_1._10_1.pdfIn PDF document text
    • https://cdn.sqhk.co/bovokolel/dihdBhc/28780160436.pdfIn PDF document text
    • http://allieshouseofhope.com/85952289168wnjdc.pdfIn PDF document text
    • http://copyrightsupport-ig.com/plague_inc_evolved_cheats_ps4yneqr.pdfIn PDF document text
    • http://kengoru.space/carrion_crown_pawnsi0m2q.pdfIn PDF document text
    • https://cdn.sqhk.co/galemojubemo/KhjAGyz/oddsmaker_jobs_uk.pdfIn PDF document text
    • http://kellys.space/imagenes_de_arbol_de_navidad_para_dir3qze.pdfIn PDF document text
    • http://naturebiolog.space/47030274612yfm3k.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fapaga/tcp_ip_port_for_printing.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/bessel_equation_solution_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/jamugigefisoposeligele.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/latin_jazz_trumpet_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/96964562159.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/fha_appraisal_guidelines_for_new_construction.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/dixilaxavewibedexi.pdfIn PDF document text
    • https://s3.amazonaws.com/masevewi/sociology_and_anthropology_of_development.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/free_movies_app_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/escape_room_level_217_answer.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_off0000ef68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF68 5564 bytes
SHA-256: 42cf70a0c97d83dea7dd1d6f47c2a3fe0a7f254ed66b26ede72e0688a99a854a
font_01_sfnt_off00010241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10241 11636 bytes
SHA-256: b5eb7f8629ed29caba728f7755f1018f3b9f2c0442b861f1449599d883705f85

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