Malicious PDF — malware analysis report

Static analysis result for SHA-256 257aec73583ad9eb…

MALICIOUS

PDF

187.9 KB Created: 2015-07-24 11:20:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4c27c2fae0133de17eba409d86c133a3 SHA-1: d182d5de504725fc85f97d228c0849762cd6b24c SHA-256: 257aec73583ad9eb05317270796ef765e055508e4bb5551aa58743f40f6fc276
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL 'http://botcraftman.ru/...' is the primary indicator of malicious intent. While no scripts were extracted, the presence of this malicious link suggests the document is designed to lure users to a harmful site, likely for phishing or malware delivery. The file's authoring application, wkhtmltopdf, is not inherently malicious but can be used to generate malicious documents.

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=%D1%82%D0%BE%D0%B2%D0%B0%D1%80%D0%BD%D0%BE-%D1%82%D1%80%D0%B0%D0%BD%D1%81%D0%BF%D0%BE%D1%80%D1%82%D0%BD%D0%B0%D1%8F+%D0%BD%D0%B0%D0%BA%D0%BB%D0%B0%D0%B4%D0%BD%D0%B0%D1%8F+%D0%B1%D0%BB%D0%B0%D0%BD%D0%BA+2014+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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://img1.liveinternet.ru/images/attach/c/5//4185/4185596_kulgu_tekst_chitat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185036_poslednyaya_oficialnaya_proshivka_dlya_samsung_galaxy_s_i9000.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190774_skachat_lego_indiana_dzhons_2_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024c05.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C05 3556 bytes
font_01_sfnt_off00025988.bin
3bef49bfaa4172e28bf5267395520fc2de53b639f3b5d9212639b4acb9dfa661		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25988 14352 bytes
font_02_sfnt_off0002865e.bin
0d03c40fcb2fea84db1f30a3d77092800066d0e86d9a7d881d95108e3e78e2cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2865E 14468 bytes
font_03_sfnt_off0002b115.bin
463f61e207cd9b6008fa45aa1f9385431cbe33854ef8bb97f981e17de0a2bad5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B115 7068 bytes
font_04_sfnt_off0002c5ab.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5AB 6084 bytes
font_05_sfnt_off0002d540.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D540 3752 bytes

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