Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8ecf29db54c7d22…

MALICIOUS

PDF

70.3 KB Created: 2021-02-28 01:17:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 2ae5b941704584f93381631ae77eba06 SHA-1: 57228f926581b8a49f3d6f2dd31a0573b26f5dc8 SHA-256: b8ecf29db54c7d22cda34cb610f959dc43b9f30a0da9a5993fd1f9ddd51e1b61
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a malicious domain, identified by both heuristics and ClamAV. The document body, though heavily obfuscated, suggests a lure related to a 'Moultrie game camera manual'. The presence of an external URI strongly indicates an attempt to redirect the user to a potentially malicious website, likely for phishing or malware delivery.

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://jumiwimov.ru/wix?keyword=moultrie+game+camera+manual+d55ir PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4453890/normal_5fcf5a5052bc2.pdfIn PDF document text
    • http://jaralet.getenjoyment.net/aja_ki_pro_ultra.pdfIn PDF document text
    • https://cdn.sqhk.co/lazimafuxuxi/QNghxjh/golden_boot_premier_league_odds.pdfIn PDF document text
    • http://mujabelor.mywebcommunity.org/what_is_grant_of_letters_of_administration.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459057/normal_6023f400c940f.pdfIn PDF document text
    • http://golixudib.mypressonline.com/how_much_is_a_soda_machine_worth.pdfIn PDF document text
    • http://simopuvoramawu.mywebcommunity.org/gonoliwefotilat.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/yavapai_county_visitation_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/wosamudewaxemagelelabujex.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/submit_button_form_onclick_javascript.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/99868954917.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/m._b._o._s._e_registration_form.pdfIn PDF document text
    • https://s3.amazonaws.com/dazawojob/ecole_ingenieur_informatique_alternance_lyon.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/74089429080.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/wamefomokuvixubi.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/fincen_beneficial_ownership_certification_form.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/catalogo_de_cuentas_de_un_hotel.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/cheran_pandiyan_movie_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B8 5092 bytes
SHA-256: b77809c699488d1ec01a9d4a2d2aded2e1a0ab665c2fb6087353b75cd80c8a1b
font_01_sfnt_off0000d9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F4 10088 bytes
SHA-256: 2dc5b5c9cb771ce10fb8c19df3935845d198c641a59b92d2790e48b7148423e5
font_02_sfnt_off0000fc65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC65 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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