Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc3d4003b6f1ba8d…

MALICIOUS

PDF

77.2 KB Created: 2021-05-03 20:37:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3236b965a1cc767d97d58fcdcb13dc0a SHA-1: 51191f5a698aeae7fe54d2ce63b9ab3581ba75e0 SHA-256: fc3d4003b6f1ba8dc4f833e4deac1de783b73b8b39df244cd0ba1ca012866706
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/strik?utm_term=jazzy+power+chair+parts+and+accessories PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4401505/normal_6005cb3babfaa.pdfIn PDF document text
    • https://cdn.sqhk.co/bonosexov/9jjmZha/jevedi.pdfIn PDF document text
    • https://cdn.sqhk.co/mawedabe/LvZcqhe/flying_car_transport_simulator_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478926/normal_604834e6606e4.pdfIn PDF document text
    • https://cdn.sqhk.co/pibexezases/Yijjjic/90_s_songs_alternative_rock.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372354/normal_6052d1a6d1e11.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450034/normal_5fc59a8b0b8e0.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/xgiiaje/88748954131.pdfIn PDF document text
    • https://cdn.sqhk.co/rizijuwet/cgjgcjf/warlord_battle_titan_size.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/351d89d8-58d7-42ed-a612-f072948a1645/lidel.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/sanodarubekuxaxokinupef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e0320ea-e151-44b2-8114-564da6015e5e/wowaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b70cd4ff-1c77-4f47-8530-201cbef8a320/47890321235.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/55677428246.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/achievement_unlocked_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/61069649863.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/11799684206.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abefd8f7-53cc-435e-a7d8-88b7fb2601f9/59657918287.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f84621cc-cea2-4de6-bb2c-20c788eef3c5/historia_de_mexico_epoca_contemporanea.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/35598421559.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/3233695153.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/21311680003.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_off0000ed6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED6D 5364 bytes
SHA-256: 74f5cf83a1e33af1ffa927856a1321c02b0ba19663b7d9bc8aba2dd6649e16a1
font_01_sfnt_off0000ffc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFC4 11504 bytes
SHA-256: 2778bfe9eaed3b2656e50db8a9d10c2264e1ab8aa61e2fcbb83571c73a01467c

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