Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce7354748fccf33e…

MALICIOUS

PDF

78.3 KB Created: 2021-03-19 14:44:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: ec5b8746d364dc1fa4697c223e74ee6e SHA-1: ffae519d71d71624a5fd7ca8fc27e2d7d1d1b0f4 SHA-256: ce7354748fccf33ed881e193c0fd676dd77e0d1441ea6f9ada45ded33f53dd77
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an external URI pointing to a suspicious domain, identified as malicious by ClamAV and an ML classifier. The document body, though heavily obfuscated, suggests a lure related to 'Amsterdam red light district map pdf'. The presence of multiple embedded URLs further supports a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/award?keyword=amsterdam+red+light+district+map+pdf PDF link annotation
    • https://cdn.sqhk.co/kewixoretuze/YggjdFy/60269721546.pdfIn PDF document text
    • http://freshka.fun/kipimikupakitutz8.pdfIn PDF document text
    • https://cdn.sqhk.co/rokunufoleti/gj9WlfD/76862447394.pdfIn PDF document text
    • http://rixujewo.getenjoyment.net/66319477946.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414360/normal_601670b59ff6d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368500/normal_5ffd5cfbd9ed0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370561/normal_6041aa730fff5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451766/normal_5ff784413411c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455881/normal_5fdf3325735d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454432/normal_5ff06dce23909.pdfIn PDF document text
    • http://zeropium.com/sensory_details_examples_in_booksrb1cy.pdfIn PDF document text
    • https://cdn.sqhk.co/dukasavubu/dif7hhB/savulawase.pdfIn PDF document text
    • http://raisinshq.pro/how_much_do_starbucks_employees_get_paid_per_hourpa5qm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460045/normal_5ffa310c30600.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365600/normal_603d011820f9e.pdfIn PDF document text
    • http://lordtrans.ru/893479698424bjcj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370269/normal_602d0805db1ee.pdfIn PDF document text
    • http://kudusakepupa.sportsontheweb.net/767389448.pdfIn PDF document text
    • http://lotto-investclub.com/31023586713zgpr8.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/fifuto/bexujibarozit.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/56605768320.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_off0000f3b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B4 5556 bytes
SHA-256: 7c1d53ff9583246858f4775baf54dbcab6863d7bc4a6b144e05ed0423e040f7e
font_01_sfnt_off0001066a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1066A 11044 bytes
SHA-256: 9b186e350cfae160ac603ee53855698893ec10d8785c02c5553e187b53808622

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