Malicious PDF — malware analysis report

Static analysis result for SHA-256 09ad148bbdc8fe2f…

MALICIOUS

PDF

185.8 KB Created: 2015-07-28 14:39:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5cf90c15ca681c48743490bec5f4c6cc SHA-1: 3d91d054061466aa2b902a8df7dec9ea2d12ff73 SHA-256: 09ad148bbdc8fe2f02713450ced42dc0f714e66b041ac679507d064ce6927681
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 ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of the malicious URL suggests the document's purpose is to redirect the user to a harmful site, likely for phishing or malware delivery.

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+%D0%B7%D0%B0%D0%BF%D0%B8%D1%81%D0%B8+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4210/4210917_skachat_besplatno_stili_dlya_sintezatora_yamaha.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200414_samaya_gromkaya_muzuyka_na_telefon.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194830_skachat_vse_albomuy_zheka_kto_tam.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_off00024470.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24470 3556 bytes
font_01_sfnt_off000251f3.bin
ccbf3472b3ead10aecc4ce6716a0ea09392e031694e0b4fba223a232d4cba638		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251F3 14084 bytes
font_02_sfnt_off00027e38.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E38 14468 bytes
font_03_sfnt_off0002a8ea.bin
159bbe9796a702b501e9469388407dd1538dbdf2f3988caada0700aeaa45426b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8EA 7000 bytes
font_04_sfnt_off0002bd50.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD50 6084 bytes
font_05_sfnt_off0002cce5.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCE5 3752 bytes

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