Malicious PDF — malware analysis report

Static analysis result for SHA-256 89488d9c7a9c2d92…

MALICIOUS

PDF

72.8 KB Created: 2021-04-07 08:47:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 6ef7884ea7e79cf758c36ef77cb439f3 SHA-1: 5ab519ea64c84f46bf153b59d2c787f71178e737 SHA-256: 89488d9c7a9c2d923938b75b4400cacc04575ec9591cc1d13849b22586e2dfa8
96 Risk Score

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 0.9998

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://dugedepap.ru/123?utm_term=fighting+fantasy+legends+guide PDF link annotation
    • http://mibijuzorifif.getenjoyment.net/us_passport_renewal.pdfIn PDF document text
    • https://pesowisigafu.weebly.com/uploads/1/3/0/7/130739627/puropagozezovitegu.pdfIn PDF document text
    • http://differencecheats.net/nabeganimoxazeo2r5.pdfIn PDF document text
    • http://fbcopyright-center.com/30375763996ysjkx.pdfIn PDF document text
    • http://lnstgramhelpcopyright.com/506845993183zkia.pdfIn PDF document text
    • https://nizevamil.weebly.com/uploads/1/3/2/8/132814567/kuzuxiwu.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/zodawanuror/teveledederixumeribovo.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/sovivexif.pdfIn PDF document text
    • http://retesatitogeli.epizy.com/cash_flow_statement_template_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/51950454117.pdfIn PDF document text
    • https://s3.amazonaws.com/vefagotoje/manual_utilizare_audi_a6_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/zujodabopuperenelipev.pdfIn PDF document text
    • http://seroritubofa.atwebpages.com/wifokebepiju.pdfIn PDF document text
    • http://jamekatenevo.rf.gd/ginabola.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/take_five_oil_change_mesquite_tx.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/vikidexuragejizuzo.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_off0000dfcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCC 5132 bytes
SHA-256: 76bdcd2db44d1f841a1e1a3bcd2ab1b5e62f3c8ea5c827724e269a88ce647808
font_01_sfnt_off0000f156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF156 10392 bytes
SHA-256: 97528d3a1461ef3da41f8eb1bb87dbde3a95976ce0b7f1443c0064f65145e3ff

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