Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3418ae56d3ad40c…

MALICIOUS

PDF

65.2 KB Created: 2021-03-14 18:18:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 795e787b32187d8e57d62aab4b7234d2 SHA-1: b126eb88807cb6b2f10d23d590e85f2b98cd0014 SHA-256: c3418ae56d3ad40c90a7f2fd138d621db7b7cdc462c97f5a52ab6aef0fa329c4
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many of which are SEO-optimized to appear as legitimate search results, a common tactic for distributing malware or conducting phishing. The ClamAV detection and ML classifier further indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7139

Heuristics 4

  • 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.
  • 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
  • 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://xezojetit.ru/award?keyword=architectural+symbols+and+abbreviations+pdf
    • http://madoxorijegobe.sportsontheweb.net/causes_of_spontaneous_abortion.pdf
    • https://gemiporelowagi.weebly.com/uploads/1/3/0/7/130775846/sixizikapo_vovozeruloma_mavepupakaviv.pdf
    • https://kuduvoga.weebly.com/uploads/1/3/4/7/134745106/jakap.pdf
    • http://kyponnik.online/vidmate_2017_apkpureofoy6.pdf
    • https://manesufepal.weebly.com/uploads/1/3/1/3/131381078/noderifosoxe_purisaxexavigab.pdf
    • http://1pokypki.website/zowurefcdy.pdf
    • http://kuworekokinig.medianewsonline.com/kovukinef.pdf
    • https://supipujijasof.weebly.com/uploads/1/3/0/7/130739476/25116da74.pdf
    • https://lulujazopo.weebly.com/uploads/1/3/4/7/134769354/nafuvanivolurabel.pdf
    • http://izzzaaa.space/6062518513r0m0r.pdf
    • https://44034db3-6cdd-4729-adf3-7ccd6afcf354.filesusr.com/ugd/9fe9cc_9e231a68a2804d838f6f313a3726d0e5.pdf?index=true
    • https://70848fb0-0fd0-490a-9360-2ffa38fc212c.filesusr.com/ugd/08e331_9756b3f5ab86403db0f2ead09bb2a209.pdf?index=true
    • https://b133b025-67d1-4190-9e53-fbb99503dec2.filesusr.com/ugd/caf13f_92cfa8073ba3418da73bed0d95e76dc7.pdf?index=true
    • https://67dbe094-6b68-4a2c-870f-9bd980043d88.filesusr.com/ugd/cff74a_f59afb3529ea4d67bbac470901501f6d.pdf?index=true
    • https://uploads.strikinglycdn.com/files/90fc354b-ddfd-4408-b181-24a59abffb5c/casio_g-shock_rangeman_gw-9400-3dr.pdf
    • https://uploads.strikinglycdn.com/files/58783c3c-92b4-430b-a64f-33e0d408e0b8/reraxabuluxu.pdf
    • https://uploads.strikinglycdn.com/files/4e196dbb-461b-48f7-b9c0-1b6fbce93f78/samsung_smart_tv_55_inch_series_8_price.pdf
    • https://uploads.strikinglycdn.com/files/6102504c-690d-4377-be65-c0138cf9b57b/q_carga_tienen_las_particulas_elementales.pdf
    • https://uploads.strikinglycdn.com/files/fb949bb4-ce83-42aa-9591-85671a435d30/ionic_compound_worksheet_answer_key.pdf

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