Malicious PDF — malware analysis report

Static analysis result for SHA-256 0700aed43b2512d6…

MALICIOUS

PDF

85.5 KB Created: 2021-03-31 07:52:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: f52b40d61e99248bc0ca85dce26bbdb4 SHA-1: b70fe7e3a9518455d6127af7481a3acd2e5505e0 SHA-256: 0700aed43b2512d6a3b9e294282119bf7c04dad16d8b76f7dce5a98bde155fa0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that advertises a "dragon city hack tool", strongly suggesting a phishing or social engineering lure. The ML classifier and ClamAV detection confirm the malicious nature of the file. While no scripts were explicitly extracted, the presence of embedded URLs and the overall context point towards an attempt to trick the user into downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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=dragon+city+hack+tool+v2+5.1+free+download PDF link annotation
    • http://expo-kit.ru/97864852272p7msd.pdfIn PDF document text
    • http://koreatop.ru/24999023883jds.pdfIn PDF document text
    • http://optarfes.com/the_art_of_seduction_book_summary_in_hindi345uy.pdfIn PDF document text
    • http://afracheat7.xyz/nvs_pgt_computer_science_books_free_downloadhwprw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465396/normal_601be44275c3a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369671/normal_5ff56545a122c.pdfIn PDF document text
    • http://axacheat4.xyz/67470179484cn8wz.pdfIn PDF document text
    • http://dokozem.iblogger.org/advantages_and_disadvantages_of_online_examination_system.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/fisulefajow/9803588609.pdfIn PDF document text
    • http://wojodiguf.rf.gd/20307338501.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/pronoun_worksheet_for_3rd_graders.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/stress_relieving_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/fl_studio_para_macbook_air.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/vsepr_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/walmart_egyptian_cotton_bed_sheets.pdfIn PDF document text
    • http://jagodamafa.rf.gd/niwomulimidebixamoluj.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF4 5764 bytes
SHA-256: 707d624a93dd1fae038d32e02e78e598f1b3f783628d8fde7eeb6a0f6b66e52e
font_01_sfnt_off000102bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102BC 2092 bytes
SHA-256: 9fcfd2b2c12c9d480c0beec3ee39f05b9e518edc5177a7a5fcc68dff0371f8a2
font_02_sfnt_off00010c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C5D 11148 bytes
SHA-256: 16ec894db14fa3c010d7e439210eab52a2f5e3cd1a8da61d811d3e7139ee995e
font_03_sfnt_off00013268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13268 16312 bytes
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15

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