Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed5ee6e6ab8baef7…

MALICIOUS

PDF

184.1 KB Created: 2015-07-24 00:31:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a5b3c15c3575063a004e2f49c62871d7 SHA-1: 0dc2e8bdfc1fa229b99ab0c6a0538623d600e793 SHA-256: ed5ee6e6ab8baef78bb118b09993f62b4b4e668833d510288355cd8a5d1d1a17
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/, is the primary indicator of malicious intent, likely serving as a gateway to a phishing or malware download page. No scripts were extracted from this sample.

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=sia+1000+forms+of+fear+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184490_piperazin_instrukciya_po_primeneniyu_dlya_zhivotnuyh.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186227_rabochaya_programma_po_izo_nemenskiy_57_klass_fgos.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184443_novuye_biss_koduy_na_2015_god_sputnikovogo_televideniya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a153.bin
7fe9713a5ffa0bdde0ea11309609dae5c2efd11b3a55d517235116e3bf050649		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A153 7264 bytes
font_00_sfnt_off00023a3e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23A3E 3556 bytes
font_01_sfnt_off000247c1.bin
413a19175edcdba294882cd8920e259e24520fcb63e5bb5f30e514a2077d9af7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247C1 14572 bytes
font_02_sfnt_off00027529.bin
7e2733484f0bb18e6bb8606638ac6484c0947a301b69669990e34d11ef777dab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27529 14944 bytes
font_04_sfnt_off0002b682.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B682 6084 bytes
font_05_sfnt_off0002c617.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C617 3752 bytes

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