Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee680065336ec2f…

MALICIOUS

PDF

186.9 KB Created: 2015-07-23 20:42:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bf400e3c0fad8410b0cb94b2b1c283f7 SHA-1: 2c2df6e46697579a4aa41ac2fcd84c1983e6459e SHA-256: 3ee680065336ec2f21537ae7c1e879a18a926185b29b019b8bd54673304d3673
90 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to a known malicious redirector. The ML classifier also flagged the document with high confidence. The embedded URL, http://botcraftman.ru/, is likely used to direct users to a malicious site, potentially for phishing or malware delivery. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact 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=Ati+mobility+radeon+hd+4570+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80+%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/5//4184/4184541_geroi_mecha_i_magii_3_duyhanie_smerti_skachat_mediaget.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183176_lazer_iz_dvd_privoda_shema.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184648_skachat_zvuk_aski_na_sms.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024149.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24149 3556 bytes
font_01_sfnt_off00024ecc.bin
084149597ec25c916cb5223c73e8f1fdcfd7f0d095cf3c5ff67358992ee43715		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24ECC 15288 bytes
font_02_sfnt_off00027dd0.bin
36f5ec495e2324c1eba4be794c25981106088c60c11d979de8830be3c65733d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DD0 15200 bytes
font_03_sfnt_off0002aa93.bin
b151e5384b7c280d8315a5eba40b711f4d48b1b8c281a80d5bcc1afc7b8b4363		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA93 7800 bytes
font_04_sfnt_off0002c1c4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1C4 6084 bytes
font_05_sfnt_off0002d159.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D159 3752 bytes

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