Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d2090a816a79a42…

MALICIOUS

PDF

82.5 KB Created: 2021-03-16 21:49:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4279a16ba744a75a06011b05b2e3d6c0 SHA-1: 5347b7879f05a787cd4dbe357074c378b5a0cca7 SHA-256: 8d2090a816a79a428207e531b7715fe23a32618f50010da73ad7ce0bfdd8802d
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 0.9996

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://ponafet.ru/wix?keyword=sniper+assassin+1+unblocked PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4387035/normal_5ff33b922b75e.pdfIn PDF document text
    • https://cdn.sqhk.co/fofotixoz/idHiO5D/mitutoyo_electronic_digital_protractor.pdfIn PDF document text
    • https://cdn.sqhk.co/tawibonikigo/e2bhjTT/50417980453.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450889/normal_601aff6460334.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407062/normal_6031e19334bad.pdfIn PDF document text
    • http://viputixezererej.66ghz.com/dutabekobuwutadesanuveba.pdfIn PDF document text
    • http://navalny.design/53121826267p0ep0.pdfIn PDF document text
    • http://tiktokcopyrighthelpteam.com/21272530109m1w27.pdfIn PDF document text
    • https://cdn.sqhk.co/norowitidot/gcvEoia/49669529677.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408879/normal_60352ef658b72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423155/normal_602ee86d856db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386593/normal_5fe75047b385c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488329/normal_60015c42b5691.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wutireliwuz.epizy.com/71938702240.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/tuvipirubado.pdfIn PDF document text
    • http://konimeva.rf.gd/how_to_build_functional_strength.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/74121461356.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/home_design_3d_crack_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/xegibojamitikadojudeban.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/mariam_khan_reporting_live_cast_timing.pdfIn PDF document text
    • http://fegugeg.rf.gd/24397046335.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_off0000ee9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE9C 5428 bytes
SHA-256: deec5d9f825e1a6ec0191f37cdac4983382853d5915610dc17aa32cf9f36cdcc
font_01_sfnt_off00010118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10118 11408 bytes
SHA-256: 20ed85f26ad2b479e7b8451b819a41c17c0e353638b44e648476e557f9bdea6f
font_02_sfnt_off00012823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12823 16036 bytes
SHA-256: 9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940

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