Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1011fe030cc7247…

MALICIOUS

PDF

147.8 KB Created: 2020-12-27 02:50:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6d06901b4e0a67180a6cd335dd89ab8a SHA-1: 9f2ea02d376a0df35ca951a2ba743c1f1422d7c6 SHA-256: c1011fe030cc724741deaa5a10527fd45005ed5c6668b703de33ef7cbc891a73
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'trafftec.ru', which is likely a phishing or malware distribution domain. The document body, though heavily obfuscated, suggests a lure related to job opportunities, consistent with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9694

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://trafftec.ru/aws?utm_term=information+about+indian+navy+job PDF link annotation
    • https://ganulexotugoris.weebly.com/uploads/1/3/1/1/131164012/4643726.pdfIn PDF document text
    • https://tefidimigeb.weebly.com/uploads/1/3/4/3/134319466/eed1d35f3663.pdfIn PDF document text
    • https://mujolopiwajini.weebly.com/uploads/1/3/4/3/134379833/mowenabesis.pdfIn PDF document text
    • https://cdn.sqhk.co/nivusenavazo/hjfujcV/speedometer_not_working_on_chaparral_boat.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/suxiweke/raxufinoguwiwijuruwumuter.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/26037035651.pdfIn PDF document text
    • https://s3.amazonaws.com/tibovubowilex/lujufojasezi.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/nesufojivoxopetus.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_off00020701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20701 5156 bytes
SHA-256: 0dfe15683b567132e2084f3dbe30fc758b644758d2d0b16a2e84925813d11b92
font_01_sfnt_off00021886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21886 13008 bytes
SHA-256: 5993cb4670f0ae1cb1b35cbc738d06876b19024626fc43752cab146f9b39ab23

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