Malicious PDF — malware analysis report

Static analysis result for SHA-256 40d1e30cdf4acd1b…

MALICIOUS

PDF

73.6 KB Created: 2021-01-30 17:55:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 927dc57f938ce9797ec010e21af77356 SHA-1: 2b315f2e8b682476a816898d7ddea9200178c9b3 SHA-256: 40d1e30cdf4acd1b22510e6ce27734f9bd7ec3b70eec5eac7bcba3218355054d
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'traffnew.ru', which is suspicious. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to redirect users to a potentially harmful site, 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://traffnew.ru/wb?keyword=panic%20alarm%20system%20for%20hotels PDF link annotation
    • http://janurikemodowu.iblogger.org/43238943711.pdfIn PDF document text
    • http://zegevuk.22web.org/mailbox_size_office_365_report.pdfIn PDF document text
    • https://cdn.sqhk.co/vemudumuxixu/yvrjgrA/fewojonuligawumuzite.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mibofive.epizy.com/winufigazonozor.pdfIn PDF document text
    • http://furofazitogo.epizy.com/turnitin_software_for_windows_10.pdfIn PDF document text
    • http://zatunikepozis.epizy.com/98045189972.pdfIn PDF document text
    • http://zerakunutage.epizy.com/88244914675.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/38864928232.pdfIn PDF document text
    • http://zavinawotomuvef.epizy.com/archery_king_mod_revdl.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/vietnam_logistics_market_report_2018.pdfIn PDF document text
    • http://surewefuwiba.rf.gd/routine_eeg_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/gagugig.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/kerbal_space_program_enhanced_edition_ps4_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/xunez.pdfIn PDF document text
    • http://vivimaga.epizy.com/petamipojexoruzafozeve.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/25847464386.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/keyboard_template_printable.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_off0000e43a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE43A 5224 bytes
SHA-256: adda15213955a80595d6916bf3ad18161efd0a2292b66f8629e665446c582e71
font_01_sfnt_off0000f5dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5DD 10252 bytes
SHA-256: 97ff0f140f91b51f699e51a5349370841908807dfd0258a7a1307c2eb58ee55d

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