Malicious PDF — malware analysis report

Static analysis result for SHA-256 8796b7ea7bdbc4af…

MALICIOUS

PDF

187.2 KB Created: 2015-07-31 16:13:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f721ce668c2b5aff2dcd47447e03b6ae SHA-1: d87b5dfb47d74e338b481e17970f601977839091 SHA-256: 8796b7ea7bdbc4af64893cb0a5c1c3f570ae662c24cbd76a888f9e1c5bf1f1cb
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 primary malicious URL identified is http://botcraftman.ru/. While the document body is heavily truncated and unreadable, the presence of this malicious link strongly suggests a phishing or malware delivery attempt. No scripts were extracted from this sample.

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%B0%D0%BD%D0%B0%D0%BB%D0%B8%D0%B7+%D1%80%D0%B5%D0%BD%D1%82%D0%B0%D0%B1%D0%B5%D0%BB%D1%8C%D0%BD%D0%BE%D1%81%D1%82%D0%B8+%D0%BF%D1%80%D0%B5%D0%B4%D0%BF%D1%80%D0%B8%D1%8F%D1%82%D0%B8%D1%8F+%D1%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184454_skachat_programmu_msvcr100dll.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185555_programma_dlya_zapisi_gitaruy_na_kompyuter.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4261/4261647_zayavlenie_o_vozmeschenii_sudebnuyh_rashodov_obrazec.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000249b9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249B9 3556 bytes
font_01_sfnt_off0002573c.bin
3398850f851af9e4c70e7f9f51e5d09362449a84e29e3b59bc3d89e026c53176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2573C 14584 bytes
font_02_sfnt_off00028534.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28534 14468 bytes
font_03_sfnt_off0002afe7.bin
faef0c9098197adc59949e6f746e369c104c071594ce15e869a2c2f7fc1f3eaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFE7 6672 bytes
font_04_sfnt_off0002c306.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C306 6084 bytes
font_05_sfnt_off0002d29b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D29B 3752 bytes

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