Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a8ff64ab6cd7fd2…

MALICIOUS

PDF

186.9 KB Created: 2015-07-25 00:30:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c6b118fde6d310a9925641ab5016786e SHA-1: b63e8a3f88c2b5667040c190898c37d01f6e79ca SHA-256: 8a8ff64ab6cd7fd26ffd45cbffd6aa2131e5ce3fa4df07cc949def6cd27e41f8
90 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 redirector URL is likely used to funnel users to a malicious site for phishing or malware delivery. 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=red+orchestra+2+%D0%B3%D0%B5%D1%80%D0%BE%D0%B8+%D1%81%D1%82%D0%B0%D0%BB%D0%B8%D0%BD%D0%B3%D1%80%D0%B0%D0%B4%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185665_bot_dlya_instagram.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186053_rannie_sroki_beremennosti_radzinskiy_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192194_skachat_igru_luntik_uchit_angliyskiy_yazuyk_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ac09.bin
62e1478247dd4e34886497025243daa389a4b5a6b9e4709970a05b5e89a776ab		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AC09 7420 bytes
font_00_sfnt_off0002458f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2458F 3556 bytes
font_01_sfnt_off00025312.bin
c448e022003717e7337d560ccc24d3fd7822bfa44bf09c30e25fc32ebd6b3c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25312 14868 bytes
font_02_sfnt_off000280da.bin
3a4789197d284ec32ce713c8aaa87b146e2b11753aca41c66efe9b950df9a55e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280DA 14680 bytes
font_04_sfnt_off0002c1cf.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1CF 6084 bytes
font_05_sfnt_off0002d164.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D164 3752 bytes

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