Malicious PDF — malware analysis report

Static analysis result for SHA-256 0364fb0949e3249c…

MALICIOUS

PDF

185.4 KB Created: 2015-07-28 10:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 7572f978ff037f9b9a2cb9efc7bc0290 SHA-1: 660729ec50adc20c4371c35b4bc40d74ba2e6845 SHA-256: 0364fb0949e3249cf3b5b593c511142096785186531dddd040990009474ce414
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The embedded URL http://botcraftman.ru/... is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious link is sufficient evidence of malicious intent.

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%9E%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%B6%D1%83%D1%80%D0%BD%D0%B0%D0%BB+%D1%83%D1%87%D0%B5%D1%82%D0%B0+%D0%B0%D0%B2%D0%B0%D1%80%D0%B8%D0%B9%D0%BD%D1%8B%D1%85+%D1%81%D0%B8%D1%82%D1%83%D0%B0%D1%86%D0%B8%D0%B9&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202662_propisi_dlya_1_klassa_shkola_rossii_raspechatat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4210/4210221_revizorro_skachat_torrent_vse_serii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4228/4228750_blickrig_gzm_777_skachat_torrent.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_off0002428f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2428F 3556 bytes
font_01_sfnt_off00025012.bin
f0ab983dba8ffd055d381c5c9e6eb5cde41817df2533eb1f8257c1d266c59657		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25012 14304 bytes
font_02_sfnt_off00027cc8.bin
fce60a3764ad961e06e54e87d1ad98a2cab138087e933097f7f73ba40e4af1f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CC8 14532 bytes
font_03_sfnt_off0002a7b2.bin
b49a28c829060ddbace08d86f3201fb978aa0e90ad45da68910cf7f075a548a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7B2 6992 bytes
font_04_sfnt_off0002bbf7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBF7 6084 bytes
font_05_sfnt_off0002cb8c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB8C 3752 bytes

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