Malicious PDF — malware analysis report

Static analysis result for SHA-256 8406186aae1ca258…

MALICIOUS

PDF

185.9 KB Created: 2015-07-24 09:20:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0c4ed10c4d7339ca7f41f3cd25401c8f SHA-1: b455372904df5b14cc40ae8badb28f04410f212c SHA-256: 8406186aae1ca25804c7169a24ed1b35111b2108b99affa3ad34f8fa7a49dc11
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 linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector, suggesting the document's primary purpose is to lure users to a compromised site.

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=Configflag+failedinstall+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80+%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://img0.liveinternet.ru/images/attach/c/5//4190/4190655_scalper_day_v3_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189190_skachat_gta_san_andreas_original_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185062_aleksandr_markovich_miller_intimnuye_paradoksuy_chitat.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_off0002a64f.bin
eac9bbbc0518c7bcacf8976193bf7bbbc68f39780b98ba6c23e9fe39f392e43c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A64F 7932 bytes
font_00_sfnt_off00023fe9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FE9 3556 bytes
font_01_sfnt_off00024d6c.bin
ecea1452bd9b54a4e2ba0d8b4d233cb91493993622795b852e02e890082d65be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D6C 14556 bytes
font_02_sfnt_off00027ad3.bin
599e02afe877f20ac0ec372bd4e29e8cc6004aa0c9aa872ebe182d7391a04c7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AD3 14892 bytes
font_04_sfnt_off0002bdd7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDD7 6084 bytes
font_05_sfnt_off0002cd6c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD6C 3752 bytes

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