Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c931a630ef0f6a7…

MALICIOUS

PDF

187.2 KB Created: 2015-07-29 12:38:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 53c1902a637c39dc66331ca20f47b564 SHA-1: d9609949691f58c37c21742b9e9a94443aaaa7bb SHA-256: 6c931a630ef0f6a75bf6b9f489b38679f5eee269b6c6b0b98f3c21fdd920faec
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for 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 link strongly suggests an intent to redirect the user to a harmful destination.

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%98%D0%B3%D1%80%D0%B0%D1%82%D1%8C+%D0%B2+sims+4+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8+%D0%B8+%D1%81%D0%BC%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202807_kalibrovka_tachskrina_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184622_steklyannuyy_tron_sara_dzh_maas_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4225/4225689_skachat_igru_geroi_mecha_i_magii_3_cherez_torrent.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ae21.bin
80dd5ef7e56b04d3f6523589021da9e10792f6b6bf447a920384a2b7527dee74		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AE21 7164 bytes
font_00_sfnt_off0002481b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2481B 3556 bytes
font_01_sfnt_off0002559e.bin
68b292d4945384387de43123caf09c3754548dbd523d9f83d29c0d1873399789		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2559E 14460 bytes
font_02_sfnt_off000282f7.bin
7a62238971da7355efccbf22e9155a47087ca91604d40035596db22d47748141		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282F7 14632 bytes
font_04_sfnt_off0002c2e7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2E7 6084 bytes
font_05_sfnt_off0002d27c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D27C 3752 bytes

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