Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf5da50f95812257…

MALICIOUS

PDF

184.8 KB Created: 2015-07-24 05:03:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c3d9ce8a82494dfc514c276b4ab09750 SHA-1: c8e6b3dda992c51a01fe3fa3aad06a628eef0b5f SHA-256: bf5da50f958122571a707d79f4821b391c9e213d356b5827fd13171808bed8ea
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector, http://botcraftman.ru/. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted from this sample, and the document body was truncated, limiting further analysis of the specific lure.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B1%D0%BE%D1%80%D0%BD%D0%B8%D0%BA+%D0%B0%D0%BD%D0%B5%D0%BA%D0%B4%D0%BE%D1%82%D0%BE%D0%B2+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185563_skachat_torrent_gta_san_andreas_dag_style.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185667_skachat_chituy_na_varfeys_bez_sms_i_aktivacii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188063_skachat_muzuyku_sektor_gaza_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002406f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2406F 3556 bytes
font_01_sfnt_off00024df2.bin
c102636664ab8c14fc8ec08c3d91e8e7140114048f835964c8d25eaca0778e76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DF2 14780 bytes
font_02_sfnt_off00027b9e.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B9E 14468 bytes
font_03_sfnt_off0002a650.bin
c2553ac68932a6c7aecd1bd1651425cac80703879bb1eda53dece7a3d43159f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A650 6708 bytes
font_04_sfnt_off0002b991.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B991 6084 bytes
font_05_sfnt_off0002c926.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C926 3752 bytes

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