Malicious PDF — malware analysis report

Static analysis result for SHA-256 b36a0574569221c8…

MALICIOUS

PDF

185.6 KB Created: 2015-07-24 12:10:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 23894c7f2876468fc20ce1942e1282ef SHA-1: 54b0f08742aabb80159099f1cca6b4de85a67b44 SHA-256: b36a0574569221c83aacca25e7fd801dd7557765072d94b9cec1c1543ab2b332
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery. No scripts were extracted, and the document body was truncated and unreadable.

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%80%D0%B5%D1%88%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B4%D0%BE%D1%81%D1%80%D0%BE%D1%87%D0%BD%D0%BE%D0%B3%D0%BE+%D0%B5%D0%B3%D1%8D+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+2015&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184457_spravka_o_srednem_zarabotke_dlya_centra_zanyatosti_blank_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191419_dorogoe_nebo_koreyskiy_serial_smotret_onlayn.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191709_logicheskie_zadaniya_po_matematike_3_klass.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242ea.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242EA 3556 bytes
font_01_sfnt_off0002506d.bin
d6e861b88b409d31cb64d3aa5dfb99ae2812d950487720cf906665c393b667fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2506D 14328 bytes
font_02_sfnt_off00027d18.bin
5bbbe414c9f579c55b3dd48b177519371bc70b139cf0135a84c689633cc73074		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D18 14700 bytes
font_03_sfnt_off0002a86f.bin
629f659292164d8421ef2bf9e00c604a4620d0340c6881d27ee88a9eb47af3a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A86F 6980 bytes
font_04_sfnt_off0002bcb9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCB9 6084 bytes
font_05_sfnt_off0002cc4e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC4E 3752 bytes

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