Malicious PDF — malware analysis report

Static analysis result for SHA-256 97ed3f6837730237…

MALICIOUS

PDF

59.0 KB Created: 2020-11-25 06:07:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 11535a2d93ca7fc12d617f0dda91a87b SHA-1: 1bc6508f40351143f837ab42e5391b77a2eb1848 SHA-256: 97ed3f6837730237997c6626fa9457db83b87deaf7c75f0d553b978ee505f43c
94 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to 'trafficel.ru', which is likely a malicious domain used for phishing or malware distribution. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, suggesting it's not intended for direct user reading but rather to host the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7927

Heuristics 3

  • 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
  • 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://trafficel.ru/strik?utm_term=how+majestic+is+your+name+michael+w+smith PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4415292/normal_5f960099c51d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366676/normal_5fad954e68cf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366625/normal_5fa4d55bc85c7.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/jitimesolagun/pemebenarawodidegevus.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/irrigation_agronomy_book.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/64217682574.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5ac5f26-769a-4571-9789-6c53f06e9962/zizupapanupafageraj.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/iphone_battery_case_xr.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bc0be71-282b-41e9-9da0-168cd7c759cd/doludegifobonumupekuvoj.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/xesawiworizukuzopof.pdfIn PDF document text
    • https://s3.amazonaws.com/tagorarib/gupevomuvivoxis.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/valentine_s_day_tamil_status_songs_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ff25222-53e5-4418-b29c-af867649adb9/74028766946.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/41725980088.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB83 5272 bytes
SHA-256: 23a41164a245d5c20e3adf6268423647b025a82f582a2930f3e19758d3553ea9

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