Malicious PDF — malware analysis report

Static analysis result for SHA-256 68aac4871ed78ebc…

MALICIOUS

PDF

185.3 KB Created: 2015-07-24 20:49:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fb93712437ad8a86fc1a477fd159e848 SHA-1: b1516b00ab3b81191fa3754ac215baf8adb59f3b SHA-256: 68aac4871ed78ebcee1095614466b5a0938a7d9353133d389e53a082da297ed8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 is designed to lure users to a harmful website, likely for phishing or malware delivery.

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%8D%D1%80%D0%BE%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5+%D0%BC%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D1%81%D0%BA%D0%B0%D0%B9%D1%80%D0%B8%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188443_rabochaya_programma_psihologa_dou_v_sootvetstvii_s_fgos.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185447_proshivka_skachat_dlya_zte_v880g.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193864_skachat_chit_na_kopatel_onlayn_na_dengi_bez_sms.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002422d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2422D 3556 bytes
font_01_sfnt_off00024fb0.bin
7e7476652d45cc586df965cf773939accb3dadf3bb686fcd28074d5bc8fb51d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FB0 14640 bytes
font_02_sfnt_off00027d9f.bin
ed99dd93dfa93b840ea91ddcbc889f8b09649a34036244f3311826b317b6af35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D9F 14692 bytes
font_03_sfnt_off0002a902.bin
a1080b7c6d4bfcaf48e6028894e2158b98cd35548177dd8a55528e5feb9b5074		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A902 6508 bytes
font_04_sfnt_off0002bb82.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB82 6084 bytes
font_05_sfnt_off0002cb17.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB17 3752 bytes

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