Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c9587d5fcbf720b…

MALICIOUS

PDF

79.6 KB Created: 2021-03-21 01:41:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: cddbfcc4f90dcd1083d221eb087dd3f3 SHA-1: b04f23cf8512f93c05c2df61644cb3762f7f4362 SHA-256: 9c9587d5fcbf720ba988db23076c21797635fcb71ed6a6d50dc50950b2f38836
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs to a website discussing Nissan Pathfinder gas mileage, suggesting a phishing or scam lure. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classification strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URI are indicative of a malicious document designed to trick users into visiting a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • 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
  • 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://zajinet.ru/wix?keyword=nissan+pathfinder+gas+mileage+2017 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450336/normal_5ff36c51cbac2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465539/normal_603c06d7dd1f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369760/normal_6023d46526abe.pdfIn PDF document text
    • http://tiwimifozukimu.medianewsonline.com/majirefomopozufikumag.pdfIn PDF document text
    • http://yourbigdick.space/kivizeramu2bjn.pdfIn PDF document text
    • http://geosen.net/4081932660yahyd.pdfIn PDF document text
    • http://quinzsy-studio.design/diluwigodosibokebiwukos14ccn.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/88275423161.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410201/normal_5fcf0bad00e85.pdfIn PDF document text
    • http://penexej.mywebcommunity.org/memelepenawumenavukabupar.pdfIn PDF document text
    • http://nipawifaxupus.mygamesonline.org/where_did_book_of_enoch_come_from.pdfIn PDF document text
    • http://astropsychology.website/deravevezimuwazamoxpo6wn.pdfIn PDF document text
    • http://vajukadezazi.getenjoyment.net/floating_platform_bed_plans.pdfIn PDF document text
    • http://ionatr.space/google_docs_expense_report_template5gkep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368976/normal_6011a87d4cd6e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/25188863836.pdfIn PDF document text
    • https://67dec473-0a9c-497c-80b1-62a4c84c5046.filesusr.com/ugd/0aab01_0d5650f958c940f4ac19f822d10449de.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/how_do_i_audible_to_itunes.pdfIn PDF document text
    • https://2cc12256-1025-444a-bacb-901a9f007bda.filesusr.com/ugd/d1fcfc_21b0add589584613a0d59e4f9b1624ad.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/likerajatob/1063226540.pdfIn PDF document text
    • https://21dbc830-6d60-48ad-8ab0-00d2b3cb69e0.filesusr.com/ugd/18d949_f47c0392bb5d49b8b16aa8d0e336d500.pdf?index=trueIn PDF document text
    • https://434dcbc4-7bd9-40fe-99bf-e102daebf961.filesusr.com/ugd/07ef24_3b79fdb817704af59734b27a8c1618f5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sitozi/deped_tambayan_curriculum_guide_filipino.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/marketing_mix_free.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_off0000f373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF373 5832 bytes
SHA-256: 61832496155d45c8ad4bdabd48aa9e9719b01071d5d094df85d2c8ce01da6066
font_01_sfnt_off00010734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10734 11868 bytes
SHA-256: fb0c96247f19ace5d9b0c573dd30db6e502e02df9ea03aecd5802b00aeef8eea

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