Malicious PDF — malware analysis report

Static analysis result for SHA-256 28478e2de178bf31…

MALICIOUS

PDF

187.1 KB Created: 2015-07-24 09:08:58 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bfe2229e72639f6e04e25c91ab3d9d1e SHA-1: 16fce88a34c523d2c29095fd9734a40b27115a72 SHA-256: 28478e2de178bf31eac926a00564b5bc38fc20e42f4b5d2b95d2233e2716b8b4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%80%D0%B0%D0%B1%D0%BE%D1%87%D0%B8%D0%B9+%D0%BF%D0%BB%D0%B5%D0%B9%D0%BB%D0%B8%D1%81%D1%82+iptv+m3u+2015+%D1%83%D0%BA%D1%80%D0%B0%D0%B8%D0%BD%D0%B0+lg&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184529_klyuch_dlya_windows_8.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185063_skachat_papku_moi_fayluy_na_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185508_skachat_besplatno_whatsapp_dlya_kompyutera.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024308.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24308 3556 bytes
font_01_sfnt_off0002508b.bin
2a0c37e88e943969a9bfa9591a86543d103b926a9170baacd02dc0573cf99b08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2508B 14900 bytes
font_02_sfnt_off00027ee0.bin
c03a3239c4e4c6aca0224e62a36b0d8aa6e0d1e1b878dbc576b2aa5295e6663d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EE0 14972 bytes
font_03_sfnt_off0002ab18.bin
787b58f0db9751700950a8b100c442801e4affa9aeac0675fd909ad0da358753		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB18 7868 bytes
font_04_sfnt_off0002c275.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C275 6084 bytes
font_05_sfnt_off0002d20a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D20A 3752 bytes

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