Malicious PDF — malware analysis report

Static analysis result for SHA-256 168479b4eab382a1…

MALICIOUS

PDF

182.9 KB Created: 2015-07-25 19:58:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-01-23
MD5: 6c9745bc9c9e5e5439efbc6c76dbafab SHA-1: 450dfcd9d2162c3f645102bca238eaec83076064 SHA-256: 168479b4eab382a12999a4214ec2e0fb88adf7b3d46fa15137d49a2b4f298503
132 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=Apdx+%D1%87%D0%B5%D0%BC+%D0%BE%D1%82%D0%BA%D1%80%D1%8B%D1%82%D1%8C&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/5//4184/4184494_skachat_mortal_kombat_9_na_pc_cherez_torrent.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198564_egye_2015_po_matematike_kimuy.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190811_skachat_scr_free_na_android.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023a9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23A9E 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00024821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24821 14408 bytes
SHA-256: 013c9f9fc95372148e242d25aea8fca377db9a23298c0323f7178a04500520b9
font_02_sfnt_off00027501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27501 14532 bytes
SHA-256: 10fcf63eb14c82b6f4963ef9ceffa160731d524fae07af6892653017afe2973b
font_03_sfnt_off00029ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29FF1 6324 bytes
SHA-256: f1ef447533de458350736a1507e1a191c37158adab3fcb2454babb2c517d8a7d
font_04_sfnt_off0002b1c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B1C4 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002c159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C159 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e