Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e2fd59ea5b361f…

MALICIOUS

PDF

185.5 KB Created: 2015-07-25 02:30:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ca01c17cb51f331708d80e4e3c8fbead SHA-1: 6fcd73561dcc062dc106083b00fa6f2e316af2a8 SHA-256: d4e2fd59ea5b361fc98fac4268ceb393265620567e1b64ed5b3201f6b5474e1d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a potentially harmful website.

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=%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD%D1%8B+%D0%B1%D0%BB%D0%B0%D0%B3%D0%BE%D0%B4%D0%B0%D1%80%D0%BD%D0%BE%D1%81%D1%82%D0%B5%D0%B9+%D0%B4%D0%BB%D1%8F+%D1%80%D0%BE%D0%B4%D0%B8%D1%82%D0%B5%D0%BB%D0%B5%D0%B9&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197805_igra_prohozhdenie_gubka_bob_kvadratnuye_shtanuy_igrat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184537_bitva_yekstrasensov_3_sezon_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184432_chuzhestranka_2_sezon_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243be.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243BE 3556 bytes
font_01_sfnt_off00025141.bin
53195ff3968a152fb7173db85cdc82128a08e52f6f181a0e9a95701720dc9f21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25141 14468 bytes
font_02_sfnt_off00027eb0.bin
a20ef4c3db2d6f25387849681f2ec3c5b7f73c2c58e06f1e72108716df46be65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EB0 14520 bytes
font_03_sfnt_off0002a98a.bin
86011e04427b56c44d55927246a3f86e41423d858fec83713e115283d61decd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A98A 6592 bytes
font_04_sfnt_off0002bc31.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC31 6084 bytes
font_05_sfnt_off0002cbc6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBC6 3752 bytes

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