Malicious PDF — malware analysis report

Static analysis result for SHA-256 226d3417d556cfd7…

MALICIOUS

PDF

73.0 KB Created: 2021-03-01 18:18:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 574a34ca561282292eb442574296fcf9 SHA-1: d4480bfe2b34defe120797b0238ad6eb4ddb3fd8 SHA-256: 226d3417d556cfd706e17dd18dbcf812724ac221a68da29242007e2246c44000
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URI that directs the user to a malicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to exploit users by redirecting them to potentially harmful content.

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://midufefew.ru/wix?keyword=dassel+cokato+schools+jobs
    • https://tamoniwezetiro.weebly.com/uploads/1/3/5/9/135961995/suralevokukulap.pdf
    • http://larts.digital/xijavamuo482y.pdf
    • http://bio-ita.fun/48070346003u3i0k.pdf
    • http://legko.travel/satasovakaleyl9xq.pdf
    • http://lunesygets.xyz/fifawewamajolumabo6b1cx.pdf
    • http://fruit-citrus.space/fish_lips_kiss_heel_gussetjpec0.pdf
    • http://veselutut.mywebcommunity.org/what_size_filter_for_bryant_furnace.pdf
    • https://pegepujime.weebly.com/uploads/1/3/1/4/131453637/jebizeku_ruviriwogaxer_lamimi.pdf
    • https://cdn.sqhk.co/baxorurifina/f3ShgeI/56777048480.pdf
    • https://cdn.sqhk.co/nukunudakiju/Mghghwv/jasexitisaparoteduraz.pdf
    • https://lemusudavigi.weebly.com/uploads/1/3/5/3/135395292/1be22ba90c.pdf
    • https://pabaxugu.weebly.com/uploads/1/3/2/6/132695470/nibawozorudug-dudili.pdf
    • http://onlajn-kassa.ru/star_wars_episode_vii_the_force_awakne2pn.pdf
    • http://sowopezamiw.medianewsonline.com/mufajakejebevotoziw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kepofif.onlinewebshop.net/how_much_does_a_retired_coast_guard_make.pdf
    • http://sukokovevaz.atwebpages.com/20572997062.pdf
    • https://s3.amazonaws.com/fefurorobumi/4100816666.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd19.bin
b8a3257e258c7ba4f73aa4404d6fe35b8a10ad97232a9efeb7529437499b1045		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD19 5072 bytes
font_01_sfnt_off0000ee60.bin
893e585c81ebcc1b08947018dc30c3efce075efc8478d8b58959f76b7689bde1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE60 12672 bytes

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