Malicious PDF — malware analysis report

Static analysis result for SHA-256 61b4876a75fab2c0…

MALICIOUS

PDF

185.8 KB Created: 2015-07-24 11:15:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 55f6148106f3d4a4e969f0307cb87d14 SHA-1: 3749b5ea8655cb2e9d7c61cfe0b52cec52284e1c SHA-256: 61b4876a75fab2c0f30719f607b295d5185fd4f431f6c55897197c3ab4c9cdf5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL points to botcraftman.ru, which is associated with malicious activity. This suggests the document's primary purpose is to redirect users to a potentially 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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%BF%D1%80%D0%BE%D1%81%D0%BC%D0%BE%D1%82%D1%80%D0%B0+%D1%87%D0%B5%D1%80%D1%82%D0%B5%D0%B6%D0%B5%D0%B9+%D0%BA%D0%BE%D0%BC%D0%BF%D0%B0%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191205_spravka_o_dohodah_po_forme_banka_rosbank_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184942_progorod_android_kryak.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184991_karbyurator_k151d_shema_podklyuchenie_shlangov.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_off00024496.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24496 3556 bytes
font_01_sfnt_off00025219.bin
5d11697db92ade99e7d72a11a91097195d54707c176faca50bedc0e27c214d7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25219 14524 bytes
font_02_sfnt_off00027fa3.bin
c457fcfaab6f548331a7572fefd0d96ae260c7787e9dff2b51ae1aa36573dbb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FA3 14468 bytes
font_03_sfnt_off0002aa52.bin
fca3b89e08fe8b514de13c61bb69605e4b011923a606bffcb0b7f3378fa75f19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA52 6700 bytes
font_04_sfnt_off0002bd84.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD84 6084 bytes
font_05_sfnt_off0002cd19.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD19 3752 bytes

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