Malicious PDF — malware analysis report

Static analysis result for SHA-256 08b7b5c8abb875ec…

MALICIOUS

PDF

185.5 KB Created: 2015-08-05 20:00:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-10-27
MD5: c2f2bb75d436275ba744d34d1fa09535 SHA-1: 4985d4092078366b0cc681851b0e46e37c9b1588 SHA-256: 08b7b5c8abb875ec0d1a05f1cd9edf67718806fcdac528ffcbf92e4610585536
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a redirector link to known malicious infrastructure. The ML classifier also flagged the PDF with high confidence. The embedded URL, http://botcraftcraftman.ru/..., is identified as a malicious redirector, likely intended to lead the user to a phishing page or a malware download. 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=%D0%BA%D0%B0%D0%BA+%D0%BE%D0%B1%D0%BD%D0%BE%D0%B2%D0%B8%D1%82%D1%8C+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4+%D0%BD%D0%B0+lg+optimus+l5+e612&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304697_tipovoy_trudovoy_dogovor_s_rabotnikom_blank_skachat.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307141_yekzamenacionnuye_biletuy_po_literature_10_klass_s_otvetami.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307237_microsoft_visual_studio_2012_ultimate_skachat_torrent.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a52d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A52D 7776 bytes
SHA-256: cd55b19062ea03aa4ca1ef9892267ceb4975d866af7216e3ec69746efc49befc
font_00_sfnt_off00023e18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23E18 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00024b9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24B9B 14640 bytes
SHA-256: d2cfee27d4d3659f2b73df2cf741a80064698e475270a6153b339ed6afe7d862
font_02_sfnt_off00027925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27925 14920 bytes
SHA-256: 970c0d93852c4cca70edf54615b816b16e3defc49ca6a26219ca1fff3e725acd
font_04_sfnt_off0002bc15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC15 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002cbaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBAA 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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