Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdce614e3c9fff80…

MALICIOUS

PDF

186.9 KB Created: 2015-08-08 09:48:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9dd38ce9165e8110bd1f305ba9f9d4ef SHA-1: e1d0ce5eb78272da1b766d9922f5a15658cd502b SHA-256: fdce614e3c9fff809a8bcac19902e7c9ecffdac5b5938cc8e9cb9fd6361c5f50
90 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by both heuristics and an ML classifier. A critical heuristic identified a link to a known malicious redirector at http://botcraftman.ru/. This suggests the document's primary purpose is to lure users to a malicious website. No scripts were extracted, and the document body was truncated, limiting further analysis of the delivery mechanism.

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%B2%D0%BE%D1%81%D0%BF%D1%80%D0%BE%D0%B8%D0%B7%D0%B2%D0%B5%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384434_skachat_besplatno_drayver_na_zvuk_dlya_windows_xp.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384108_tureckie_pesni_na_russkom_yazuyke.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383972_skachat_igru_five_nights_at_freddys_na_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024840.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24840 3556 bytes
font_01_sfnt_off000255c3.bin
991b73f4375f14f630a745932b2b655ef9ded3d9c7947ddce4ffb5c41b56e533		 pdf-font-stream PDF embedded font (sfnt) at offset 0x255C3 15084 bytes
font_02_sfnt_off0002841b.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2841B 14468 bytes
font_03_sfnt_off0002aece.bin
f80924037328962ff8aeca5b81b35efd44de31fa6502d581ed75aac2f36e6a35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AECE 6656 bytes
font_04_sfnt_off0002c1cb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1CB 6084 bytes
font_05_sfnt_off0002d160.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D160 3752 bytes

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