Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd6fad94950a738d…

MALICIOUS

PDF

73.8 KB Created: 2021-03-21 03:55:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 2aa466521d14ced1402002b2dc6d8f0a SHA-1: 241f6b18a7addc0f6b2328db983c6956ffb7001a SHA-256: fd6fad94950a738ddf0fa33d05c2fd2c33c371dca4d8eb47ef7717e11c712074
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The presence of embedded URLs, including one pointing to 'jumiwimov.ru', suggests a phishing or malware distribution attempt. The heuristic 'SE_URGENCY_LURE' indicates the document likely uses deceptive language to prompt user interaction, which is a common tactic in phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/123?utm_term=picture+collage+maker++free PDF link annotation
    • https://cdn.sqhk.co/konajera/V3hddib/bawifeweja.pdfIn PDF document text
    • http://abwaab.su/vomamemmjqe.pdfIn PDF document text
    • http://peuer.xyz/radio_thermostat_ct50_battery_replacementbrwdw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403541/normal_602615ee3bf06.pdfIn PDF document text
    • https://cdn.sqhk.co/kiribikiv/EMwmjeH/padagowizi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414176/normal_6021d63c6080e.pdfIn PDF document text
    • https://cdn.sqhk.co/kufezagivori/hc2JJhh/ants_go_marching_one_by_one_original.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496616/normal_5fe29d969b746.pdfIn PDF document text
    • https://cdn.sqhk.co/suzeboxiwo/hhdnRge/21569927567.pdfIn PDF document text
    • http://ital-girl.space/bang_bang_all_video_song_hd7h50d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465919/normal_6041a3c0e26ab.pdfIn PDF document text
    • https://cdn.sqhk.co/dawafawux/Uhdjdii/narowakulekazepibeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421462/normal_6040e9eea4dd5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401972/normal_60427e79290a6.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/602cab52-7921-4501-a3fa-3e08889bcbf3/pasozu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/866f2afa-4ef1-4ea0-821a-43e81c6b6862/keurig_k145_not_brewing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5511693e-2d73-4df6-83e2-4c9cd8bef051/87921788703.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36d567c9-6890-4d88-95d0-820c81dcee93/xfinity_xfi_app_not_working.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_off0000ded6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDED6 5088 bytes
SHA-256: fd564ddd22dc748a173fabcd302ed5bb0b9eebfe0ba8e2da53d0c4e0c748ca07
font_01_sfnt_off0000f01a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF01A 13440 bytes
SHA-256: f13ba5463820bcb1fe0a60d5b9484c705a7b02053a7f40a0d6084b93cd22969a

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