Malicious PDF — malware analysis report

Static analysis result for SHA-256 337f3eb0aa7e2bc3…

MALICIOUS

PDF

187.7 KB Created: 2015-07-23 23:52:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 255a6441488da00bf02a8b9b1c811a35 SHA-1: 89c18dfb92fb8e847de58fc582330355327d72ee SHA-256: 337f3eb0aa7e2bc39b2358b7a1acb2c09fa1843f7716f05e6392d1a10e0fb0e3
92 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The presence of this link suggests the document is designed to lure users to a malicious website. No scripts were extracted from this sample, limiting further analysis of its behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%B0+%D0%BF%D0%BE+%D0%BB%D0%B8%D1%82%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B5+9+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BB%D0%B8%D1%82%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B0+20+%D0%B2%D0%B5%D0%BA%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184421_obrazec_zayavleniya_na_uderzhanie_iz_zarabotnoy_platuy.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185401_uill_bouyen_mir_bez_zhalob_skachat_besplatno_txt.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185105_mortal_kombat_komplete_edition_skachat_torrent_pc.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000249f0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249F0 3556 bytes
font_01_sfnt_off00025773.bin
21d75f0bc252d2d398f245bf65c11700468166e6f0b39e16d9f806b38ed81d63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25773 14964 bytes
font_02_sfnt_off0002858f.bin
4660c726bfec70cf8270f743ccf3c0307480eefce6086964e315f7c0c7334c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2858F 14468 bytes
font_03_sfnt_off0002b045.bin
b73d7192622de66e86d1a7b4d6c86d50acd2cc15601a82368e58d175bb0b99fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B045 7112 bytes
font_04_sfnt_off0002c4f1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4F1 6084 bytes
font_05_sfnt_off0002d486.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D486 3752 bytes

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