Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b663536f33681ab…

MALICIOUS

PDF

186.3 KB Created: 2015-08-05 16:14:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4295c8f44e0abfe243b1c53bf8d375c8 SHA-1: e5951936977f6c189a82d20d8aec083e57366159 SHA-256: 6b663536f33681ab212694ea7ba2856d658a9e358458b3179ba57e0156b61827
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a critical heuristic for linking to a known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is likely part of a phishing or malware distribution chain. While no scripts were explicitly extracted, the PDF structure and the malicious link suggest an attempt to lure the user to a harmful external resource.

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BE%D0%B7%D0%B4%D0%B0%D0%BD%D0%B8%D1%8F+%D0%BC%D0%BE%D0%B4%D0%BE%D0%B2+%D0%BD%D0%B0+%D1%81%D1%82%D0%B0%D0%BB%D0%BA%D0%B5%D1%80&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304752_zayavlenie_ob_utochnenii_iskovuyh_trebovaniy_v_arbitrazhnuyy_sud.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305506_android_gps_karta_tadzhikistana_skachat_besplatno_so_sputnika.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305115_prihodnuyy_kassovuyy_order_blank_skachat_ukraina.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_off00024522.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24522 3556 bytes
font_01_sfnt_off000252a5.bin
ba41342fa6694fb47dae38ab7bacf1a8a3c24ea1ed62f443804349e5729a6053		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252A5 14568 bytes
font_02_sfnt_off00028076.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28076 14468 bytes
font_03_sfnt_off0002ab28.bin
3a0b9ae4b3899e81d0697c3f2ed10f6fda3d5dee3d0de8ac949c93ee7e7f33b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB28 7000 bytes
font_04_sfnt_off0002bf8c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF8C 6084 bytes
font_05_sfnt_off0002cf21.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF21 3752 bytes

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