Malicious PDF — malware analysis report

Static analysis result for SHA-256 626198fd2e7c800f…

MALICIOUS

PDF

188.4 KB Created: 2015-07-23 21:05:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 95939505dc123c47e592071462bbd017 SHA-1: 66a0b3106a7e940906b4471a69f96105a817478e SHA-256: 626198fd2e7c800fa3b253195f62014bb41ab8b3a9ea6dad1d18320b2fe4d210
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. While no scripts were directly extracted, the presence of a malicious URL within the document structure suggests an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

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%B2%D0%B5%D0%BB%D0%B8%D0%BA%D0%BE%D0%BB%D0%B5%D0%BF%D0%BD%D1%8B%D0%B9+%D0%B2%D0%B5%D0%BA+3+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%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+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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//4184/4184531_otchet_po_praktike_v_fskn.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184756_stalik_hankishiev_mangal_skachat_pdf.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184367_windows_7_ultimate_x64_skachat_torrent_licenziya.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_off00024bdb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BDB 3556 bytes
font_01_sfnt_off0002595e.bin
f6879c65144389dffb797d771ad7d53fe02b42db0e4b01f2e7f0205858bb8faf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2595E 15232 bytes
font_02_sfnt_off00028883.bin
98035ad399c1d7c1d4117a7a8ea3a9995e082e27d86a5d33c171b6a9f5b6bcc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28883 14680 bytes
font_03_sfnt_off0002b34b.bin
b66cd0b9b009d961d58ec9e8fec1f1c6788f6e3bb7dabdd474ae8aecd05701cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B34B 7108 bytes
font_04_sfnt_off0002c7cb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7CB 6084 bytes
font_05_sfnt_off0002d760.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D760 3752 bytes

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