Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dad7bc0d7ec5d4f…

MALICIOUS

PDF

184.6 KB Created: 2015-07-23 21:16:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: aa55be7fc8118f3469d0826309d4b27f SHA-1: 398cec211d2e4ad597357cd1365af4716e433370 SHA-256: 1dad7bc0d7ec5d4f73b8bf3fb93438444e8c95e1fb1b464fa1f4e44c21a67604
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a harmful external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%88%D1%80%D0%B8%D1%84%D1%82+meiryo&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184383_biletuy_na_pogruzchik.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184595_skachat_besplatno_vuykroyki_platev_dlya_polnuyh.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184440_kod_aktivacii_dlya_kaspersky_internet_security_2015_na_90_dney.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023fdd.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FDD 3556 bytes
font_01_sfnt_off00024d60.bin
67879fb92a5fe3900ac0287e40a2e8119d06ff763d2727939fc1603d62d521d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D60 14520 bytes
font_02_sfnt_off00027a60.bin
a86f7ce44302a395a4e90eed852afe61e7b3da83bc3606fc103afcd10b2520c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A60 14688 bytes
font_03_sfnt_off0002a5a7.bin
90ccd82564a4ca3f54338cf90cf725acb204b5d5a5832f885c3ac980fb9d5349		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5A7 6616 bytes
font_04_sfnt_off0002b89b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B89B 6084 bytes
font_05_sfnt_off0002c830.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C830 3752 bytes

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