Malicious PDF — malware analysis report

Static analysis result for SHA-256 7261308987986de2…

MALICIOUS

PDF

185.9 KB Created: 2015-07-25 02:43:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bfe53b7b91d06dd1db902a03a77eaf38 SHA-1: 3ec852c92bfc2391f47ec5c6ec7adda005dbd73e SHA-256: 7261308987986de21111cc04b338edf84e2229da13824c3337990460ac05a552
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link to a known malicious redirector infrastructure, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is the primary indicator 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%BC%D0%B5%D0%BD+%D1%85%D0%B0%D0%BC+%D0%BD%D0%B0%D0%BC%D0%BE%D0%B7+%D1%83%D0%BA%D0%B8%D0%B9%D0%BC%D0%B0%D0%BD+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186913_skachat_adobe_flash_player_10_dlya_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184854_programma_dlya_skachivaniya_muzuyki_s_kontakta_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192562_akt_spisaniya_pozharnuyh_rukavov.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_off0002438d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2438D 3556 bytes
font_01_sfnt_off00025110.bin
076a36aaed0df36b25ae1c2f9d007e30dd027f0f97f2b726fd761eda5b49c87b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25110 14992 bytes
font_02_sfnt_off00027f7c.bin
858de1ea0edee6589051d6c5805376be02fce034b392ea3476abe13984ffa707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F7C 14532 bytes
font_03_sfnt_off0002aa69.bin
3bacc857e60d40322f32ab2b279f20ae482e7847de633803d432ff85bcf9464f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA69 6812 bytes
font_04_sfnt_off0002bdfd.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDFD 6084 bytes
font_05_sfnt_off0002cd92.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD92 3752 bytes

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