Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f17f9c416d9633c…

MALICIOUS

PDF

185.3 KB Created: 2015-07-25 09:35:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 40f9e4d6c07536df8f30acec30110f95 SHA-1: 457bcc0eb14e4e7c0e37122c4cf79172fa0ac043 SHA-256: 0f17f9c416d9633c76ae2aa97367518449f3233455bd239bf1bd74f63d919013
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely intended to lead the user to a malicious site, potentially for phishing or malware distribution. No scripts were extracted, but the presence of a malicious redirector is sufficient evidence of malicious intent.

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=%D0%BA%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+world+of+tanks+%D0%BD%D0%B0+%D0%B7%D0%BE%D0%BB%D0%BE%D1%82%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190990_kak_oplatit_shtraf_gibdd_esli_kvitanciya_uteryana.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192247_drayver_dlya_vneshnego_zhestkogo_diska_3q.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194802_matlab_70_skachat_besplatno.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a6ff.bin
bef49616f50dfac62253b6eabbeb439aa394927f31dcf1200da53ee7b0ed3e0c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A6FF 7012 bytes
font_00_sfnt_off00023ec0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23EC0 3556 bytes
font_01_sfnt_off00024c43.bin
c52970f837bf2ecd90763846a344a19e9515c2710174a96bfe7bcd5b688121c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C43 15188 bytes
font_02_sfnt_off00027b59.bin
6e4af140ebad63e88a0112061f17afd0e4cdbe292f1f862277c2a8850fde8607		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B59 14748 bytes
font_04_sfnt_off0002bb61.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB61 6084 bytes
font_05_sfnt_off0002caf6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CAF6 3752 bytes

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