Malicious PDF — malware analysis report

Static analysis result for SHA-256 870222f358203ae7…

MALICIOUS

PDF

186.3 KB Created: 2015-07-23 20:27:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 8158b00c8ea08e082507d19861c07bdf SHA-1: 64d4d51eb3604e6f792091ca493e9d2bd3a9abca SHA-256: 870222f358203ae7a418465db298a3ce9d8e9d67afd761db9ba729ed30e4d82d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious infrastructure. The embedded URL `http://botcraftman.ru/...` is identified as a redirector, suggesting the document's purpose is to lure the user to a harmful destination. No scripts were extracted, but the presence of a malicious link is sufficient evidence of malicious intent.

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=50+%D0%BE%D1%82%D1%82%D0%B5%D0%BD%D0%BA%D0%BE%D0%B2+%D1%82%D0%B5%D0%BC%D0%BD%D0%B5%D0%B5+%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+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184502_molodezhka_1_sezon_skachat_torrent_v_horoshem_kachestve.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184380_igra_moya_strana_2020_dlya_kompyutera_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184457_spravka_o_srednem_zarabotke_dlya_centra_zanyatosti_blank_skachat.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_off00024551.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24551 3556 bytes
font_01_sfnt_off000252d4.bin
e86fe6a6f21c656210f5086720350bab016f27236342683a583d3d9fa5ba54a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252D4 14420 bytes
font_02_sfnt_off00028016.bin
b58a3f65a835e51878bc626920fee102a076d2956e33c3b4835bdd8620330d8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28016 14640 bytes
font_03_sfnt_off0002ab4c.bin
0185844f219bb37af2897c39198d528f09eb3ebd367d49cb97c0301dffc6a987		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB4C 6912 bytes
font_04_sfnt_off0002bf49.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF49 6084 bytes
font_05_sfnt_off0002cede.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEDE 3752 bytes

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