Malicious PDF — malware analysis report

Static analysis result for SHA-256 70217648c3231af4…

MALICIOUS

PDF

79.9 KB Created: 2021-03-27 21:20:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5c03c4e6de96bab67b43f1327d12833f SHA-1: 596541638430ba6b528c07920552c23cc62634f1 SHA-256: 70217648c3231af48f8545f0ad37be205709acd3353fc8b67e9ec877bc096981
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a large number of external links, identified as a link farm, with the primary suspicious URL being 'https://soxebez.ru/wix?keyword=water+drop+iphone+wallpaper'. This suggests a phishing or SEO manipulation attempt. While no scripts were explicitly extracted, the PDF structure and the presence of numerous external links strongly indicate malicious intent, likely to redirect users to potentially harmful content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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.
  • 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://soxebez.ru/wix?keyword=water+drop+iphone+wallpaper PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4494877/normal_5ffbcdcc9a37f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379733/normal_60107159d68f4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408321/normal_5fedbe0c97f91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413122/normal_5fd5f5079dd64.pdfIn PDF document text
    • http://waxopuvuru.22web.org/aphasia_speech_therapy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407552/normal_604e85c96513e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://995be609-08d3-41b1-a6c0-90e53670bcec.filesusr.com/ugd/9988e1_7c64d6095e6848f4950fda14c3f7fff4.pdf?index=trueIn PDF document text
    • http://lamafuravufezin.epizy.com/lefty_s_brisbane_gig_guide.pdfIn PDF document text
    • http://jelugubafegoj.rf.gd/boss_ve_2_manuale_italiano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ae52cb3-48eb-47b4-9344-f198ba6a9b84/89362939455.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/19987912835.pdfIn PDF document text
    • http://libaxobadu.epizy.com/zarurunatinita.pdfIn PDF document text
    • https://a35aa970-3e4e-4c20-be1f-53d10001bce9.filesusr.com/ugd/af4e73_fc0b55ee9857425db39aae20b365e6eb.pdf?index=trueIn PDF document text
    • https://d064ede3-316f-4d13-8ec5-014b2136b3bd.filesusr.com/ugd/154db6_99e9b81408b84a0badf8b599504879df.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sazariwapa/bollywood_hd_movies_free_online.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/english_test_for_grade_8.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/42341710214.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/mogafupolefobojudufaru.pdfIn PDF document text
    • https://3568ea06-17fa-4787-91ae-86b9aa918cbd.filesusr.com/ugd/8ade13_eff3cbae26304f76bcc9da9e512ed90a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/accept_meeting_request_email_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/taminamefa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c7c6259-0b39-4140-b7da-820eb7804d41/46071515880.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_off0000fc17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC17 4972 bytes
SHA-256: 31c9c8679e79cfa50a848ea5a768334a7f75b8916e79620a17a5d25455743a50
font_01_sfnt_off00010d14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D14 10372 bytes
SHA-256: cd3c0a02a87066b8d18e06b1b63395c5ba58a243f8c632f607d67b525dd17699

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