Malicious PDF — malware analysis report

Static analysis result for SHA-256 525bcac53a9353b9…

MALICIOUS

PDF

187.0 KB Created: 2015-07-25 02:11:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2727464f744628a7c21fc3b081ea136e SHA-1: 282d1af1f94486e7fd6e06f4b3257cf3b42ffbc5 SHA-256: 525bcac53a9353b937b3cedbd42e9185756991e075b80565ad5130a44b70d15c
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 URL, indicating it is designed to lead users to harmful content. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be directing users to the malicious domain http://botcraftman.ru/ for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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%BF%D0%B0%D1%80%D0%BE%D0%B2%D0%BE%D0%B7%D0%B8%D0%BA+%D1%82%D0%B8%D1%88%D0%BA%D0%B0+%D0%B2%D1%81%D0%B5+%D1%81%D0%B5%D1%80%D0%B8%D0%B8+%D0%BF%D0%BE%D0%B4%D1%80%D1%8F%D0%B4+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188878_zoo_tycoon_2_ultimate_collection_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192866_elena_zvezdnaya_hell_zamuzhem_ne_prosto_chitat_onlayn.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184668_ati_mobility_radeon_hd_4570_drayver_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024930.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24930 3556 bytes
font_01_sfnt_off000256b3.bin
85e94f32969776c0c8f2ed3ed96ec83a2cdbde0aa451530c8a3b9cc21ec4192a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x256B3 14796 bytes
font_02_sfnt_off00028448.bin
c521cb7f32363069232cb6cf023e13d81dfc7f2346484feaa89f0b3c8cd570ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28448 14520 bytes
font_03_sfnt_off0002af1a.bin
ac50cd749106ef1f36bacc4f378357aacdfbf4f969b2e3ab3fb1373f24e76586		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF1A 6668 bytes
font_04_sfnt_off0002c229.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C229 6084 bytes
font_05_sfnt_off0002d1be.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1BE 3752 bytes

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