Malicious PDF — malware analysis report

Static analysis result for SHA-256 189012d982339919…

MALICIOUS

PDF

186.5 KB Created: 2015-08-08 14:16:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 980da44c195e00c855beb16df404f0e6 SHA-1: c9bb81dd18dd3c25248ffc737de2cb65959c97e1 SHA-256: 189012d9823399196e95c3b3f3f84d5924b90730e8c0beecb89d67a8c68389ea
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 redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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%9A%D0%BB%D0%B0%D1%81%D1%81%D0%BD%D1%8B%D0%B9+%D0%B6%D1%83%D1%80%D0%BD%D0%B0%D0%BB+%D0%BA%D0%BE%D0%BC%D0%B8%D0%BA%D1%81%D1%8B+%D1%87%D0%B8%D1%82%D0%B0%D1%82%D1%8C+%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%BD%D0%B0%D1%8F+%D1%88%D0%BA%D0%BE%D0%BB%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4389/4389587_skachat_rom_total_var_2_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4389/4389502_pci_ven_8086_dev_0046.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387430_skachat_igru_shashki_na_razdevanie_na_kompyuter.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_off00024488.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24488 3556 bytes
font_01_sfnt_off0002520b.bin
e403ce7fdad833ff03529d3a70c34d9292c13338e9c4c385410a9fd692fa19ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2520B 14644 bytes
font_02_sfnt_off00027fa0.bin
c7cf4dc695dfffd4dc0f1a2d7fb04add854ca79f6a246cb567e448d76b9b17b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FA0 14520 bytes
font_03_sfnt_off0002aa6d.bin
a0549ec02cce73ec55846d952d63e0f9251b1655e2eb65591f39cecdaece106b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA6D 7416 bytes
font_04_sfnt_off0002c00a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C00A 6084 bytes
font_05_sfnt_off0002cf9f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF9F 3752 bytes

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