Malicious PDF — malware analysis report

Static analysis result for SHA-256 c37ae704162756eb…

MALICIOUS

PDF

67.2 KB Created: 2021-02-11 01:57:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 7a899f2005d45780b022cfd12d50e66a SHA-1: af5940e8c69358b2bc47ab2143a161ccdd1e043f SHA-256: c37ae704162756eb5fe3b87fe3d424973239ee3d2425bd7014d86a8a0d29807d
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL and the document's apparent content suggest a phishing lure, attempting to trick users into visiting a malicious website. No scripts were extracted, but the PDF structure itself facilitated the malicious URL delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wb?keyword=cohabitation%20agreement%20template%20manitoba PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4418791/normal_5fca826f47e01.pdfIn PDF document text
    • https://fegenogo.weebly.com/uploads/1/3/5/9/135981842/bulas_nowukora_laziwagopabekur.pdfIn PDF document text
    • https://pamimimafe.weebly.com/uploads/1/3/0/7/130775080/eee9a2733654d2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413231/normal_5fda690e428a8.pdfIn PDF document text
    • http://deflecfcvy.best/beseviliy1akt.pdfIn PDF document text
    • https://pajobozonojamu.weebly.com/uploads/1/3/3/9/133997184/3311eea46dd752.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490129/normal_60077bc094fb1.pdfIn PDF document text
    • http://jiwitoletazadag.iblogger.org/hozelock_corner_hose_guide.pdfIn PDF document text
    • https://dejutuzalusabi.weebly.com/uploads/1/3/4/8/134869317/6de64421c8ef996.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374175/normal_5fede8d2c9a94.pdfIn PDF document text
    • http://vejinow.22web.org/calendrio_escolar_2019_20.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451353/normal_5fe0fccd1506b.pdfIn PDF document text
    • http://ndfnasg.xyz/the_solar_system_planets_photostjbyz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405194/normal_5fde15484d2a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367680/normal_601be0710e349.pdfIn PDF document text
    • http://rotixumuzu.22web.org/rewezesumuwowajibomaz.pdfIn PDF document text
    • http://tenp-mail.xyz/wulifivolamewuzataa2cw3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://libiwozurogufo.rf.gd/pojekuz.pdfIn PDF document text
    • http://wokezafuvix.epizy.com/58808928812.pdfIn PDF document text
    • http://dokedajonanumi.rf.gd/45763044005.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_off0000ccd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCD1 5100 bytes
SHA-256: ee8c567e527a4a93054c216fae61248be14a9db02fe0e2fae2c6a81c35d0c6a0
font_01_sfnt_off0000ddf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF9 9908 bytes
SHA-256: 1ad15b34235e65f3a9458022aba962bd0b9b9220f15a94df9b122391ef745b75

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