Malicious PDF — malware analysis report

Static analysis result for SHA-256 800424328f7af3d8…

MALICIOUS

PDF

187.1 KB Created: 2015-08-08 10:36:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 612ff8ea6e287d32196af9934f15aee9 SHA-1: 9faa67d6e205ce7e5dc06148feb74533882ad226 SHA-256: 800424328f7af3d870f30f538fb8a13ad8d1295b41f913b377bc497d8d04246b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious URL strongly suggests a social engineering attack.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B3%D0%B4%D0%B5+%D0%BF%D0%BE%D1%8F%D0%B2%D0%B8%D0%BB%D0%B0%D1%81%D1%8C+%D1%84%D0%B5%D0%B4%D0%BE%D1%81%D0%BE%D0%B2%D0%B0+%D0%BD%D0%B0+%D0%BE%D1%82+%D1%81%D0%BB%D0%BE%D0%B2%D0%B0+%D0%BA+%D0%B1%D1%83%D0%BA%D0%B2%D0%B5+1+%D1%87%D0%B0%D1%81%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385374_plan_kvartiruy_p44t_s_razmerami.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385925_ruybnoe_mesto_chituy_monetuy_dremuy_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385921_tanec_krovavuyh_makov_skachat.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_off0002491b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2491B 3556 bytes
font_01_sfnt_off0002569e.bin
f9bf09a9418ae248860e45f31e5fde0c6aa258d7af2163e65f2d19a9d15259f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2569E 14256 bytes
font_02_sfnt_off00028361.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28361 14468 bytes
font_03_sfnt_off0002ae13.bin
de9b88f20a76eacb9883acde3a53c8e89a4d976adcc22212fe387934baa7ef58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE13 7056 bytes
font_04_sfnt_off0002c29d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C29D 6084 bytes
font_05_sfnt_off0002d232.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D232 3752 bytes

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