Malicious PDF — malware analysis report

Static analysis result for SHA-256 64a6479a1ce1d431…

MALICIOUS

PDF

191.2 KB Created: 2015-07-25 02:45:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 521760369b3c37b35288a832dba9d4a9 SHA-1: 866f7e7d0e625bf2b6b2c7a573368b1505d76f6a SHA-256: 64a6479a1ce1d4317152bac1afedc2b0b94798d5358c792bb8a5e6f4cbc8bc31
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to known malicious infrastructure. The embedded URL, http://botcraftman.ru/, is identified as a malicious redirector, suggesting the document's purpose is to lure users to a harmful site. No scripts were extracted, but the presence of a malicious link strongly indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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+%D0%B8%D0%B3%D1%80%D1%83+%D1%80%D0%B5%D0%B9%D0%BD%D0%B4%D0%B6%D0%B5%D1%80%D1%8B+%D1%81%D0%B0%D0%BC%D1%83%D1%80%D0%B0%D0%B8+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190993_tekstuy_dlya_chteniya_rki.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195027_igra_4_kartinki_odno_slovo_skachat_na_kompyuter.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187490_suyn_uvidel_mamu_goloy_video.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_off000258c9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x258C9 3556 bytes
font_01_sfnt_off0002664c.bin
eb8fc925835f5a77c7807b50a6a1e4cb10349b924c11a25aea27f4760565a42f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2664C 14420 bytes
font_02_sfnt_off0002938b.bin
ba3cb981e1f2463b2c264d3e10a61f97939051f7b2910811e6692948e05aa41b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2938B 14468 bytes
font_03_sfnt_off0002be3a.bin
502292fb7a50079d7ee1590b02b6b5ec590dfd838c5e8e983f3d6e4dc2394f27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE3A 7176 bytes
font_04_sfnt_off0002d30b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D30B 6084 bytes
font_05_sfnt_off0002e2a0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2A0 3752 bytes

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