Malicious PDF — malware analysis report

Static analysis result for SHA-256 601ad3632246e0af…

MALICIOUS

PDF

185.8 KB Created: 2015-07-24 03:46:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5a4563b309a9eb0e7af9d47afa5c1f8e SHA-1: f2a12cade3b4d7e7047f0d4ccc05d8047d3922fa SHA-256: 601ad3632246e0afd62761a9295e6d7580a3895dd788fa16530925e3048bd970
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. 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 for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL in a PDF is sufficient evidence for this assessment.

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%90%D0%BA%D1%82%D1%83%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D0%BF%D1%80%D0%BE%D0%B1%D0%BB%D0%B5%D0%BC%D1%8B+%D1%83%D0%B3%D0%BE%D0%BB%D0%BE%D0%B2%D0%BD%D0%BE%D0%B3%D0%BE+%D0%BF%D1%80%D0%B0%D0%B2%D0%B0+%D1%88%D0%BF%D0%B0%D1%80%D0%B3%D0%B0%D0%BB%D0%BA%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185603_maykrosoft_ofis_2007_skachat_besplatno_bez_registracii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186151_skachat_chit_na_kubezumie_2_v38.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185062_aleksandr_markovich_miller_intimnuye_paradoksuy_chitat.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_off0002448e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2448E 3556 bytes
font_01_sfnt_off00025211.bin
56f106c19a4b731bfc1e2d0649ca16a63043676fdd50c488e6b413e47f88091a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25211 14340 bytes
font_02_sfnt_off00027f10.bin
d9775475238cab7937fa4e35d65fbe93a357e8a9e242d68b4cc886ecd1dec298		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F10 14520 bytes
font_03_sfnt_off0002a9df.bin
7c6afe60dd8999a10fa5e0fbf56c83ba17f8903064e2804c824a53110a97ca2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9DF 6796 bytes
font_04_sfnt_off0002bd69.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD69 6084 bytes
font_05_sfnt_off0002ccfe.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCFE 3752 bytes

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