Malicious PDF — malware analysis report

Static analysis result for SHA-256 69c56cbac026deb2…

MALICIOUS

PDF

182.9 KB Created: 2015-07-23 20:11:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1846f41e409c7eef64849673ea9abbde SHA-1: 0af04c736b209c06b2aeedbb17d4f9f24162671c SHA-256: 69c56cbac026deb26026688b00f81956d1c1e32acbb2c48e53528f9527a6e754
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily truncated and unreadable, but the presence of a malicious link suggests an attempt to lure the user to a compromised site. No scripts were extracted, but the malicious link is sufficient evidence of a phishing or malware distribution attempt.

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+%D0%B7%D0%B5+%D0%BA%D1%80%D1%8E+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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://img0.liveinternet.ru/images/attach/c/5//4184/4184385_dzheyms_rollins_tropa_mertvuyh_skachat_besplatno_fb2.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183175_lada_kalina_yelektricheskaya_shema.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183243_urok_3.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_off00023b71.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23B71 3556 bytes
font_01_sfnt_off000248f4.bin
2f8e6dda51ac4bc04a9f403b1fb79f7efccd12ec85dbd636e688bf4034c274ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248F4 14140 bytes
font_02_sfnt_off00027560.bin
4ae165705ecc41720893a92c6e94e3ee89b3be36a12e4a920505046f59c61edc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27560 14468 bytes
font_03_sfnt_off0002a00e.bin
e73466d66a29e594ff773f2de8848ede294ed4efaf211c44022b15a6207d101e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A00E 6320 bytes
font_04_sfnt_off0002b1df.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B1DF 6084 bytes
font_05_sfnt_off0002c174.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C174 3752 bytes

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