Malicious PDF — malware analysis report

Static analysis result for SHA-256 46ead446c054ff32…

MALICIOUS

PDF

70.9 KB Created: 2021-02-19 08:34:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 3f57cb28922ee4565bdcc6b92e6283fb SHA-1: 5a3ec1fec407c3b7b0026d914c37c37b485d709e SHA-256: 46ead446c054ff32f833e03869f828adb0121f07c3b28c05d1d67934089ba315
156 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, and it contains numerous external links, indicating a link farm or phishing attempt. The PDF structure and embedded URLs suggest it is designed to redirect users to potentially malicious websites, likely as part of a phishing campaign or to serve as a downloader for further malicious content. No scripts were extracted, but the presence of external links is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/aws?utm_term=panelview+900+configuration+mode PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410985/normal_600ba51e55d5c.pdfIn PDF document text
    • https://cdn.sqhk.co/totimujid/pm6Yhf7/switchblade_tattoo_outline.pdfIn PDF document text
    • http://nakezubelakibe.22web.org/caldera_baxi_manual_de_instrucciones.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405660/normal_601a4af2bdf08.pdfIn PDF document text
    • https://cdn.sqhk.co/lipetebo/gg6vHc6/forimurevutakumebamabazo.pdfIn PDF document text
    • https://dodivivedi.weebly.com/uploads/1/3/3/9/133997878/foluzu-kejop-vasosijibila.pdfIn PDF document text
    • https://xalitive.weebly.com/uploads/1/3/4/3/134320973/jegav.pdfIn PDF document text
    • https://daxusumupazi.weebly.com/uploads/1/3/4/7/134702932/4b2ae50c0764.pdfIn PDF document text
    • https://cdn.sqhk.co/rigizisojix/EjeEas0/sazuluredejijukegolaj.pdfIn PDF document text
    • http://gixotakopopunod.22web.org/dijilego.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/yFgejh0/21918274074.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/fejififimaketo/4_bit_magnitude_comparator_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/87814899192.pdfIn PDF document text
    • http://fagajewajemanov.epizy.com/achieve_ielts_test_3_reading_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/ghost_evp_analyzer_app.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/brocade_network_advisor_san_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/ubuntu_font_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/zirenebobulavogolazo.pdfIn PDF document text
    • http://sezeludijufoma.epizy.com/40384517360.pdfIn PDF document text
    • https://s3.amazonaws.com/tufitijinexu/attivazione_android_auto_fiat_tipo.pdfIn PDF document text
    • http://gamojeliziri.rf.gd/73053650806.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_off0000d704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD704 5616 bytes
SHA-256: 3fd6d9e83e87e906fd7c273a9a96003bc4ba5339118ca1a11732d5352f2881ee
font_01_sfnt_off0000ea22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA22 10644 bytes
SHA-256: 0776c70dfd959a8b73282cd46fb0114c7d5d330addae586f6bc3ee907cb48a5b

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