Malicious PDF — malware analysis report

Static analysis result for SHA-256 69d23842ed87511a…

MALICIOUS

PDF

72.1 KB Created: 2021-02-24 11:24:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: fcf7b0a43043626169fcb32afd924e71 SHA-1: 7c2e519ca38158f1803be61b033cf99555245e01 SHA-256: 69d23842ed87511a34fabe7df267470ef8182e9d6a3ef097296fcce7a2a3af34
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that promises free gift cards, a common lure for phishing and scam operations. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site for credential harvesting or further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/wix?keyword=free+itunes+gift+cards+no+verification PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460963/normal_601e0685bb5dd.pdfIn PDF document text
    • http://fallofelin.online/la_tecnologa_educativa_como_disciplina_pedaggicamfhu0.pdfIn PDF document text
    • http://volamejabevakik.22web.org/new_arabic_video_songs_2018.pdfIn PDF document text
    • http://yachts-4-sale.com/guvedafopo2x671.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485309/normal_601b4b83899af.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406241/normal_5ffadeb7259ea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459466/normal_5fde3ff022b1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367959/normal_5fe84fa3812ff.pdfIn PDF document text
    • http://vsedlyatebya.xyz/easiest_way_to_learn_english_grammarnfoln.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/temerezuwibotolu.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/mikofudukate.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/82247295839.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/netflix_app_for_android_8._1._0.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/95355763960.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF2C 5052 bytes
SHA-256: 4c42d2b5891f390871885932d3c128df94849ec86b42fbe210b1d7465ceef8f0
font_01_sfnt_off0000e06c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE06C 10764 bytes
SHA-256: 8b18831d20709e075a1d357a3ebc1156a8a543a79c949d468e43a1ad0f52c54f
font_02_sfnt_off000104fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104FE 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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