Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe7e97b88d408e0…

MALICIOUS

PDF

186.2 KB Created: 2015-08-05 17:56:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fc8aabd9c954d76cff2ef3bb36a1ad93 SHA-1: 56d8eb1c34cdd46752709800d558fcb3c8d0420d SHA-256: afe7e97b88d408e0055a4a05063239c4b5b9d1bf416ab7cf18b0f71795221bcb
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%9A%D0%B0%D0%BA+%D0%BD%D0%B0%D1%80%D0%B8%D1%81%D0%BE%D0%B2%D0%B0%D1%82%D1%8C+%D1%81%D0%B5%D0%BB%D0%B5%D0%BD%D1%83+%D0%B3%D0%BE%D0%BC%D0%B5%D1%81+%D0%BA%D0%B0%D1%80%D0%B0%D0%BD%D0%B4%D0%B0%D1%88%D0%BE%D0%BC+%D0%BF%D0%BE%D1%8D%D1%82%D0%B0%D0%BF%D0%BD%D0%BE+%D1%84%D0%BE%D1%82%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306831_diskoteka_8090_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306110_skachat_igruy_odevalki_na_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305534_skachat_korsaruy_proklyatie_dalnih_morey_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000245dd.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x245DD 3556 bytes
font_01_sfnt_off00025360.bin
fbb6cdd7a485545588b6ebd6952b8f40e506fae9f0d9e005fb66a2d37c5ce70d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25360 14204 bytes
font_02_sfnt_off00027fd6.bin
9ba1c633a15266881d56e98214e0090723d278454e36a1bb32f132e355b48d40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FD6 14520 bytes
font_03_sfnt_off0002aaa7.bin
8ccc07f9949ac34fd859f967970ac3a6ddcda1fd80d0c33bfc92be46a355bfde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AAA7 7052 bytes
font_04_sfnt_off0002bf22.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF22 6084 bytes
font_05_sfnt_off0002ceb7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEB7 3752 bytes

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