Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae497058f72d674b…

MALICIOUS

PDF

186.8 KB Created: 2015-08-08 13:54:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b969d1fae16ef5b2774979e78c67ce6e SHA-1: a97b8fb3f42a331d6e55560335832edd3a75f0cd SHA-256: ae497058f72d674bc22db220a95896c09882b12e4090a696ac6d5535084ef3d0
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 ML classifier also strongly indicated maliciousness. The embedded URL http://botcraftman.ru/... is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download page. No scripts were extracted, and the document body was not parsable.

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%BC%D0%BF%D0%B1%D1%8D%D1%8D+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387376_canon_mf4500_series_rukovodstvo.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4392/4392568_kalambur_derevnya_durakov_video_na_telefon_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4393/4393385_skachat_shou_serzha_gorelogo_vse_vuypuski.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024987.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24987 3556 bytes
font_01_sfnt_off0002570a.bin
8363dee93c3832b4cf78e01d000b4441e66eee04089905020c905988e4b35c5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2570A 14796 bytes
font_02_sfnt_off00028496.bin
2faf238a7982558102f008fa2e03cbd823800727545a7f10afda32250c8cbf2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28496 14468 bytes
font_03_sfnt_off0002af49.bin
ba5bffc177e47edc7d5d4c89b4196f53048e5574736f77bf53d1a13e8e32597b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF49 6412 bytes
font_04_sfnt_off0002c180.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C180 6084 bytes
font_05_sfnt_off0002d115.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D115 3752 bytes

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