Malicious PDF — malware analysis report

Static analysis result for SHA-256 2142600ee7a5eced…

MALICIOUS

PDF

182.5 KB Created: 2015-08-09 08:39:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ad4bbb8ff9014b14f6a678885e5cb571 SHA-1: 32cbb089ff374042100d2a1b5fac9d98cc787044 SHA-256: 2142600ee7a5eced9eb6745e694e7124b7670df9f63feb0f78383aea62171c0d
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

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%87%D0%B8%D1%82%D1%8B+%D0%B4%D0%BB%D1%8F+szone+online&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4398/4398093_moy_malenkiy_poni_2_sezon_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384032_shkola_milicii_v_krasnodare_chto_sdaetsya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4398/4398802_samouchitel_po_tayekvondo.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off00029e44.bin
6233f79f76525e70234d93abde973ab3a16824ce6fb38bc3ca5f7044597387bd		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x29E44 6304 bytes
font_00_sfnt_off000239d8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x239D8 3556 bytes
font_01_sfnt_off0002475b.bin
0a1484bbece439a2aade2042e24fe92710b90ab2fc17b04450f419e63b81c87a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2475B 13804 bytes
font_02_sfnt_off000272fe.bin
85d671d5ce8bd6c0b58c42cd4b33ed0c415b5023ddcd68eec02394db7850b399		 pdf-font-stream PDF embedded font (sfnt) at offset 0x272FE 14632 bytes
font_04_sfnt_off0002b00b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B00B 6084 bytes
font_05_sfnt_off0002bfa0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFA0 3752 bytes

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