Malicious PDF — malware analysis report

Static analysis result for SHA-256 7162ad5152dacba4…

MALICIOUS

PDF

186.4 KB Created: 2015-07-26 12:20:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 122a956b4fa511cf039b4c671271a814 SHA-1: 12d3aacc717fce95fe9659e6da5e66cfc3574fd9 SHA-256: 7162ad5152dacba4379f92f538f064186dc9f3deba37fd52c2b44ecba38032f3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a malicious URL is a strong 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=%D1%81%D0%BE%D0%BD%D0%B8+%D0%B2%D0%B5%D0%B3%D0%B0%D1%81+%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+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188088_skachat_igru_sims_3_cherez_torrent_repack.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203061_audiokursuy_angliyskogo_yazuyka_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4217/4217370_opera_mini_4_skachat_besplatno_dlya_samsung.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_off00024524.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24524 3556 bytes
font_01_sfnt_off000252a7.bin
bec2edc7357b84bfa63b5e58f530495f9f5a3109875b90f83e35a1a00b8e1335		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252A7 15196 bytes
font_02_sfnt_off0002814a.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2814A 14468 bytes
font_03_sfnt_off0002abfc.bin
13124d6e3d968eb634579c1c18c2a678a64e4c8dfd79f7e787ba96da8f0d5a46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABFC 6832 bytes
font_04_sfnt_off0002bfc1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFC1 6084 bytes
font_05_sfnt_off0002cf56.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF56 3752 bytes

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