Malicious PDF — malware analysis report

Static analysis result for SHA-256 514d437009fd9770…

MALICIOUS

PDF

186.7 KB Created: 2015-07-24 23:42:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 035911e11f5bb1bffe50835884bb78a7 SHA-1: 941e661e85080a23189621fc7236981d5465c978 SHA-256: 514d437009fd9770ce90ea5eb997c78c230f64da43a3f0c5b631eeefd08f66cb
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The primary malicious indicator is the embedded URL pointing to botcraftman.ru, which is likely used to redirect users to a harmful destination. No scripts were extracted, and the document body was truncated, limiting further analysis of the delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%9E%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%BF%D0%B8%D1%81%D1%8C%D0%BC%D0%B0+%D0%BE+%D1%80%D0%B0%D1%81%D1%82%D0%BE%D1%80%D0%B6%D0%B5%D0%BD%D0%B8%D0%B8+%D0%B4%D0%BE%D0%B3%D0%BE%D0%B2%D0%BE%D1%80%D0%B0+%D0%B0%D1%80%D0%B5%D0%BD%D0%B4%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191656_skachat_100_mashin_dlya_3d_instruktor_227_domashnyaya_versiya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186445_programma_dlya_primerki_odezhduy.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185258_orel_i_reshka_praga_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000247c9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247C9 3556 bytes
font_01_sfnt_off0002554c.bin
04da1ffb9c7be927a23da961e7a08cd9ca1ecf868bdc29acc1772bcb2f5ddcf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2554C 14208 bytes
font_02_sfnt_off000281f1.bin
b79d56b22a3d37edc4793e81e28af2d51416733c1decb699be69ae0b1e9dff38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281F1 14468 bytes
font_03_sfnt_off0002aca0.bin
300fc5caa0ec355a4a8a22faf68592a224c5bc7e6fc351137577c4b1d32edfbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACA0 7088 bytes
font_04_sfnt_off0002c12c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C12C 6084 bytes
font_05_sfnt_off0002d0c1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0C1 3752 bytes

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