Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c16178bb70cd005…

MALICIOUS

PDF

187.2 KB Created: 2015-07-24 19:54:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 146c613482a5f2eb335ab82b5221cb77 SHA-1: 4e38f738512ded35339ba4b682181ce0f5f3840c SHA-256: 8c16178bb70cd005beee16f1862309cbf08129917a7f8722ff7bcd73f9cfd90c
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 embedded URL, http://botcraftman.ru/..., is associated with malicious activity. While no scripts were extracted, the presence of this malicious link strongly suggests the document is designed to lure the user 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=%D0%B3%D0%B5%D1%80%D0%BE%D0%B8+%D0%BC%D0%B5%D1%87%D0%B0+%D0%B8+%D0%BC%D0%B0%D0%B3%D0%B8%D0%B8+3+wog+358+%D0%BA%D0%B0%D1%80%D1%82%D1%8B+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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://img1.liveinternet.ru/images/attach/c/5//4185/4185264_skachat_demo_versiyu_medok_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190248_skachat_antiban_dlya_varfeys_besplatno_bez_sms_i_registracii.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193144_skachat_besplatno_programmu_slava_petuhu_v1.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000247d3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247D3 3556 bytes
font_01_sfnt_off00025556.bin
838679a4289586aaf2bc69b05213d7ce16fab7e71e9d0eb032238f32a285de59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25556 14384 bytes
font_02_sfnt_off0002828f.bin
245775b96c5dce4d84c44c0b5f8b374358f369e9ef50bbc5eb25a857e12d3914		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2828F 14716 bytes
font_03_sfnt_off0002adfa.bin
ecc6df0a880eb06d7cb65478f5ae89f6f5616720424bebc13d5828166914b10f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADFA 7188 bytes
font_04_sfnt_off0002c2eb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2EB 6084 bytes
font_05_sfnt_off0002d280.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D280 3752 bytes

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