Malicious PDF — malware analysis report

Static analysis result for SHA-256 203a7c9af4e4876d…

MALICIOUS

PDF

185.5 KB Created: 2015-07-25 05:24:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e0c0d4b1eb7909f657219e1c904dbb39 SHA-1: 1e39a9602e121017344dde377577d8274fcb760f SHA-256: 203a7c9af4e4876d351b32ecfc8a891f6987405f2d9b2b3979fdb50d3e97e5c4
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, http://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 not parsable.

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%BF%D1%80%D0%B8%D1%88%D0%B5%D0%BB%D1%8C%D1%86%D1%8B+%D0%BD%D0%B8%D0%BE%D1%82%D0%BA%D1%83%D0%B4%D0%B0+%D0%B0%D1%83%D0%B4%D0%B8%D0%BE%D0%BA%D0%BD%D0%B8%D0%B3%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192625_sabvufer_misteri_mtv_300a_shema_podklyucheniya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185883_skachat_igru_the_last_of_us_cherez_torrent_na_kompyuter.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199006_skachat_igru_call_of_duty_black_ops_2_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024322.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24322 3556 bytes
font_01_sfnt_off000250a5.bin
f3c817de0799df49bdbb57bd54471e2d4475b61602563d32dfe62b5e35de4316		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250A5 15080 bytes
font_02_sfnt_off00027f2e.bin
d9775475238cab7937fa4e35d65fbe93a357e8a9e242d68b4cc886ecd1dec298		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F2E 14520 bytes
font_03_sfnt_off0002a9fd.bin
197b7cee0ea7917342757cae453ba306fa5b9f73a54d0aa2e8f56232c1b52c01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9FD 6472 bytes
font_04_sfnt_off0002bc5b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC5B 6084 bytes
font_05_sfnt_off0002cbf0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBF0 3752 bytes

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