Malicious PDF — malware analysis report

Static analysis result for SHA-256 218f433a933aa97d…

MALICIOUS

PDF

185.9 KB Created: 2015-07-24 20:09:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 259058c3408833356fcff1e690b20a27 SHA-1: aa74138ee3fa52b2f5da8c836cd1c6d74c604923 SHA-256: 218f433a933aa97d59e70c87004608af54821d5ed86d906324f180e20cc82276
92 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is likely part of a phishing or malware distribution chain. No scripts were extracted, and the document body was not parsable.

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%BB%D0%BE%D0%B2%D0%B0%D1%80%D1%8C+%D0%BF%D0%B0%D1%80%D0%BE%D0%BB%D0%B5%D0%B9+%D0%B4%D0%BB%D1%8F+%D0%B1%D1%80%D1%83%D1%82%D0%B0+%D1%86%D0%B8%D1%84%D1%80%D1%8B+00000000+%D0%B4%D0%BE+99999999&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192055_kasl_3_sezon_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192431_whatsapp_dlya_nokia_s3_00_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185207_skachat_igru_garri_potter_i_daruy_smerti_chast_1_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002439a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2439A 3556 bytes
font_01_sfnt_off0002511d.bin
ae89537183001ad98a7653fbcf4e039e9015f5f8fbabe15650d36486dcf1dba1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2511D 14432 bytes
font_02_sfnt_off00027dfa.bin
c7d72fc74f28bee6071ab19e6773ae9ade2d02f05dda8ca609cf9a6ae8574ad8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DFA 14468 bytes
font_03_sfnt_off0002a8ac.bin
253cadab291c3945d4c1c00affbdf10d0ef6e3eeeb3d1a52151148a1433356ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8AC 7216 bytes
font_04_sfnt_off0002bdb1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDB1 6084 bytes
font_05_sfnt_off0002cd46.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD46 3752 bytes

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