Malicious PDF — malware analysis report

Static analysis result for SHA-256 2836e8ccfbc454b4…

MALICIOUS

PDF

84.4 KB Created: 2021-04-15 22:13:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c63dda8c8d0ea78fc9e2cfe22c733d60 SHA-1: 54309a4ca185de69e6d9a8bd34e00077fe5da558 SHA-256: 2836e8ccfbc454b4631a71966c326c6b2b2d8c6ad99cdf90f3530eec9aadc8d3
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://baarspo.ru/strik?utm_term=que+es+un+titulo+salvage+en+mexico PDF link annotation
    • http://nicepics.xyz/piruzedepolozeruqilr.pdfIn PDF document text
    • https://cdn.sqhk.co/widafopaj/BldhcHq/15513415324.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416806/normal_6041b2f519bb7.pdfIn PDF document text
    • http://penodesige.iblogger.org/43888677584.pdfIn PDF document text
    • http://autokenn.com/17960912564spron.pdfIn PDF document text
    • https://cdn.sqhk.co/gojelonub/hijf7Ev/84156649308.pdfIn PDF document text
    • https://cdn.sqhk.co/tezizejaropu/ghgfkif/bubowidejaxikojiw.pdfIn PDF document text
    • http://big-ita.space/space_live_wallpaper_for_android_phonerdvc2.pdfIn PDF document text
    • http://claire-irk.ru/sigilipem0liuf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382187/normal_60260ef33be6a.pdfIn PDF document text
    • http://com-servers.online/dyson_dc35_filter_catcha6wl8.pdfIn PDF document text
    • https://cdn.sqhk.co/pusobatosip/sDJMjhm/74895692706.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/ladojenefe/cissp_official_study_guide_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/marathi_calendar_2019_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/57500606079.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/tyranny_walkthrough_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/atem_mini_software_control_download_for_mac.pdfIn PDF document text
    • http://julajibumomas.rf.gd/pulosudiwami.pdfIn PDF document text
    • http://pusobif.rf.gd/roadways_bus_conductor_online_form_2017.pdfIn PDF document text
    • http://pibunowawoxi.epizy.com/how_to_fix_sheetrock_corner_cracks.pdfIn PDF document text
    • http://dupepasanu.epizy.com/convexity_meningioma.pdfIn PDF document text
    • http://fifajepetu.rf.gd/koxefuluke.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FF 5212 bytes
SHA-256: 244c05bc91dcb710569830bad9c4c41bdc855f1368ea4d8b4b9a7d4554f47a07
font_01_sfnt_off000106bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106BB 11788 bytes
SHA-256: 92a25d71b1ad704c6bf5492a770b644a501ada3c7854f1d324c44cf2b97f7d7e
font_02_sfnt_off00012d6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D6D 16060 bytes
SHA-256: 84d5bd19c210eb3b73ecc14096ab1e56fdfb5b80ce7ba4f0052c67c0c2b02727

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