Malicious PDF — malware analysis report

Static analysis result for SHA-256 699ccc691a4d1a41…

MALICIOUS

PDF

181.8 KB Created: 2015-08-05 13:19:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2895b6a079cd6a485ac43e7d8d512dd1 SHA-1: 718822a98b0c1d89be00fc76409f38e687193f57 SHA-256: 699ccc691a4d1a41b4e575effc2185c8fb21bab348ea56dfad26f5eda6e75e99
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is presented with a keyword suggesting a download lure for 'root explorer'. While no scripts were extracted, the presence of a malicious redirector strongly suggests an attempt to lure the user to a compromised site, likely for further malware delivery or phishing.

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=root+explorer+219+%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/6//4304/4304451_bangkok_hilton_skachat_torrent_v_horoshem_kachestve.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304447_interesnuyy_scenariy_vuypusknogo_v_4_klasse.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304430_skachat_igru_luntik_uchitsya_risovat_cherez_torrent.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_off00023653.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23653 3556 bytes
font_01_sfnt_off000243d6.bin
5123846b7842a455c21f18037ed5d430683b03e613c2d812bc1a42b916c7367a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243D6 13732 bytes
font_02_sfnt_off00026f1f.bin
f8c0bd0864cf619192feefda5a0f122df8d2eb2778e597a900b2c9a8767f3648		 pdf-font-stream PDF embedded font (sfnt) at offset 0x26F1F 14644 bytes
font_03_sfnt_off00029a71.bin
9cae4cb8de0642a4a7e6dcb6161dfa6ed84901a1e3b97d0ec3f229bba31e2006		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29A71 6616 bytes
font_04_sfnt_off0002ad8d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD8D 6084 bytes
font_05_sfnt_off0002bd22.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD22 3752 bytes

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