Malicious PDF — malware analysis report

Static analysis result for SHA-256 e20bc064abad83da…

MALICIOUS

PDF

186.8 KB Created: 2015-07-24 14:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0ed64a5ed9af4e560c494a59ca1d262b SHA-1: 1c7dbca6a3d0367497e8be2a946ffda8d106148a SHA-256: e20bc064abad83da8f6a3717f8b3de1a4e7e6ea604d7eb93d5304249ae22b9d2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated 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 users to a harmful website.

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=%D0%95%D0%BB%D0%B5%D0%BD%D0%B0+%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%BD%D0%B0%D1%8F+%D1%85%D0%B5%D0%BB%D0%BB+%D0%B7%D0%B0%D0%BC%D1%83%D0%B6%D0%B5%D0%BC+%D0%BD%D0%B5+%D0%BF%D1%80%D0%BE%D1%81%D1%82%D0%BE+%D1%87%D0%B8%D1%82%D0%B0%D1%82%D1%8C+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188245_seosprint_otvetuy_na_zadaniya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185347_rabochaya_programma_po_literature_6_klass_merkin_fgos.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184307_skachat_programmu_dlya_nastroyki_sabvufera.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024646.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24646 3556 bytes
font_01_sfnt_off000253c9.bin
e382f65f26d60a24fc579c48df492f1f018f8adabc4d246d9f7a3503041b44d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253C9 14632 bytes
font_02_sfnt_off000281a9.bin
79eb42aa2e7c4e0c9a03378f137c6d138c3db7c00f9cd9d02573ff8b27813944		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281A9 14532 bytes
font_03_sfnt_off0002ac99.bin
384d86d7c61f9e1a77d5306d9e8596067a9365a73e052d1f237756bee60836b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC99 7152 bytes
font_04_sfnt_off0002c162.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C162 6084 bytes
font_05_sfnt_off0002d0f7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0F7 3752 bytes

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