Malicious PDF — malware analysis report

Static analysis result for SHA-256 3618a26697b71a15…

MALICIOUS

PDF

185.9 KB Created: 2015-07-23 21:09:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a321ad503350d16e14feddf9ef5d7223 SHA-1: 7ae3d2ad0c28385c56978671f5e532b431f559c2 SHA-256: 3618a26697b71a15aec8fe3e124f2726811882c4d28ed8100fb758f46aa8499b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 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 is designed to lure users to a harmful destination.

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%A1%D0%BB%D0%BE%D0%B2%D0%B0%D1%80%D1%8C+%D0%B8%D0%BD%D0%BE%D1%81%D1%82%D1%80%D0%B0%D0%BD%D0%BD%D1%8B%D1%85+%D1%81%D0%BB%D0%BE%D0%B2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+fb2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184537_bitva_yekstrasensov_3_sezon_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184553_skachat_zvuk_indyuka.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184706_skachat_durak_na_razdevanie_na_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241f7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241F7 3556 bytes
font_01_sfnt_off00024f7a.bin
455c4fdf1a0c64a32459499b2fd3507bd73d77de018385bee04d9db704c2f758		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F7A 15044 bytes
font_02_sfnt_off00027e75.bin
afc7975983bb4f7a699e80a8372bd83e521adff936af09e52ceef893aad9771e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E75 14760 bytes
font_03_sfnt_off0002aa1f.bin
2586fb6967c568ad61e73bf7994be2e586a7f5e37517e2468f71e5346680f65b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA1F 6760 bytes
font_04_sfnt_off0002bda1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDA1 6084 bytes
font_05_sfnt_off0002cd36.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD36 3752 bytes

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