Malicious PDF — malware analysis report

Static analysis result for SHA-256 6baaccb644a87f2b…

MALICIOUS

PDF

186.0 KB Created: 2015-07-23 21:26:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 8df608078ee2721c4d36fe50e74c1802 SHA-1: a8285263d733f8ae2ec3b08dc41257954aee7408 SHA-256: 6baaccb644a87f2b38cec1607d90584686577f13bcfdf23bba033562cd900b0f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by an ML classifier and contains a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious link is sufficient to classify this as a phishing attempt.

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%BA%D1%80%D0%B5%D1%81%D1%82%D0%BE%D0%BD%D0%BE%D1%81%D1%86%D1%8B+%D0%B8%D0%B3%D1%80%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184298_interaura_neyronastroi_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184457_spravka_o_srednem_zarabotke_dlya_centra_zanyatosti_blank_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184868_skachat_besplatno_angeluy_na_ldu_ne_vuyzhivayut_tom_2.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002456e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2456E 3556 bytes
font_01_sfnt_off000252f1.bin
7ee590a92ce11df371a376fd9cc600880597938c6254eae3d3d5440864592dfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252F1 14752 bytes
font_02_sfnt_off0002810e.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2810E 14468 bytes
font_03_sfnt_off0002abc0.bin
96ecab3667ab5ad1824e37f36c92bf6973c22e054370429a3e4272b30661bd3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABC0 6472 bytes
font_04_sfnt_off0002be0a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE0A 6084 bytes
font_05_sfnt_off0002cd9f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD9F 3752 bytes

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