Malicious PDF — malware analysis report

Static analysis result for SHA-256 57910c0deb8b1816…

MALICIOUS

PDF

184.5 KB Created: 2015-08-08 11:42:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 25ad60aee513a7b372cb846ddc3a3a26 SHA-1: 206037c75b520ff4864213e2494cbd1cb2c37358 SHA-256: 57910c0deb8b18164a80d2b28284216864a5e963d781052eb34f49dc5fd049c9
92 Risk Score

Malware Insights

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

The PDF file contains an embedded link that points to a known malicious redirector. This indicates a phishing or social engineering attempt to lure the user to a harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, limiting further analysis of the payload.

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%81%D0%BB%D0%B5%D0%BF%D0%B0%D0%BA%D0%BE%D0%B2+%D0%BE%D1%82%D0%B5%D1%86+%D0%BE%D0%BD%D1%83%D1%84%D1%80%D0%B8%D0%B9+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4388/4388046_drova_na_zvuk_windows_7_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386647_coreplayer__windows_ce_60.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384204_obrazec_prikaza_o_sozdanii_kontraktnoy_sluzhbuy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240a3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240A3 3556 bytes
font_01_sfnt_off00024e26.bin
22755c52df2e2bb52b5ba5c2976167cf5c980957009c2bde5680c075105c7a2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E26 14060 bytes
font_02_sfnt_off000279fd.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x279FD 14468 bytes
font_03_sfnt_off0002a4af.bin
d23e8ac0d240f94e9a2911d9b5a0a937daf0862d6504791349a1bbcab0923df3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A4AF 6836 bytes
font_04_sfnt_off0002b862.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B862 6084 bytes
font_05_sfnt_off0002c7f7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7F7 3752 bytes

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