Malicious PDF — malware analysis report

Static analysis result for SHA-256 e081d3aa56a85632…

MALICIOUS

PDF

72.4 KB Created: 2020-12-22 22:59:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 263f98212ca24125ec64e472f878eed1 SHA-1: 21705db7a6d62d8f59e0d88f20e5613d7005c125 SHA-256: e081d3aa56a85632487168e35160404c0908580cfe30a6c7ebd9b578871a819e
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'trafftec.ru', which is likely the primary destination for the phishing attempt. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a malicious site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9571

Heuristics 3

  • 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
  • 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/strik?utm_term=zipline+valley+physics+puzzle+game PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4445532/normal_5fde0912e63c3.pdfIn PDF document text
    • https://ruwadegefanum.weebly.com/uploads/1/3/4/1/134108857/nekuguvatofejat.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366339/normal_5fdcfa8d74960.pdfIn PDF document text
    • https://nuvisinuxaxo.weebly.com/uploads/1/3/1/3/131383681/zafume-danitej-torixus.pdfIn PDF document text
    • https://miwilokak.weebly.com/uploads/1/3/4/3/134375457/tobopoxok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496582/normal_5fcdac454792c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d32070d-5fe5-4191-a04e-ea0c23dd388a/smart_shopping_everfi_test_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/jedi_knight_fallen_order_trainer.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/carplay_android_auto_smartphone_mirroring.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/spelling_test_template_6_words.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/3937633808.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/derenexiloverefuwaluj.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/persona_3_hanged_man_social_link.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44a18572-4598-4a77-8d80-2518ee1e68f8/53928791452.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF871 5420 bytes
SHA-256: da593070ec5e65d652424543d4706cb95aefd49e55e155e14385e39bef7d042b

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