Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cca920017330aaf…

MALICIOUS

PDF

185.4 KB Created: 2015-07-23 13:15:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 602d839a38c0b12a17459cac06bba78e SHA-1: 6e9dd184d475f5f445854ea3ef1a275c4a0dd4c9 SHA-256: 7cca920017330aaf87223abb310c2f983a619a1cdb36a2488efe3ef1ee4b99b2
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URI that redirects to a suspicious domain, identified as a potential SEO redirector for phishing or malware. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of a malicious redirect URL suggests an attempt to lure the user to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 http://ruqvarq.ru/?b1Ls&keyword=%D1%81%D1%85%D0%B5%D0%BC%D0%B0+%D0%B4%D0%B2%D0%B8%D0%B3%D0%B0%D1%82%D0%B5%D0%BB%D1%8F+%D0%B8%D0%B6+%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0+5&charset=utf-8 PDF link annotation
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183182_lampovuyy_tembroblok_shema.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183200_lampovuyy_peregruz_shema.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183188_kursovoy_proekt_po_detalyam_mashin_reduktor.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002435f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2435F 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off000250e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x250E2 14148 bytes
SHA-256: 8a9b81f1954e3b024d340ed7b57dba88001091152374dc4463818846f759438b
font_02_sfnt_off00027d60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27D60 14708 bytes
SHA-256: 8ed0c9a75c87fcad2f6bfb74af0149da707c7cd46c4c8cff2d5814d6275e0cd4
font_03_sfnt_off0002a8d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8D0 6592 bytes
SHA-256: 8c6d9368367e1af18daa1f28718691d4d7f7e833d7a7bf84b88be2520f4704be
font_04_sfnt_off0002bba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBA4 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002cb39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB39 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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