Malicious PDF — malware analysis report

Static analysis result for SHA-256 b200e8bbacb577e8…

MALICIOUS

PDF

186.2 KB Created: 2015-08-08 12:36:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 304eaf0f5a5f105fcb9ceb16ec49c844 SHA-1: c5ad1d7ba9123d36280e1a0a9bc2289a5454789b SHA-256: b200e8bbacb577e8fbb870f4bbd54ec77485f7d53419e9a6e383c2b8a8f8a85c
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 presence of this link suggests the document is intended to redirect the user to a malicious website, likely for phishing or malware distribution. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%B0%D0%BA+%D1%81%D0%BE%D0%B7%D0%B4%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%87%D0%BA%D1%83+%D0%B4%D0%BE%D1%81%D1%82%D1%83%D0%BF%D0%B0+wifi+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80%D0%B5+windows+7&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385450_audiogid_po_amsterdamu_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4388/4388260_sbornik_receptur_muchnuyh_konditerskih_i_bulochnuyh_izdeliy.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387719_knoppix_705_rus_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a91f.bin
a1991e0de8d9b56c82f888effb688bfff06263d05c879c6ea8ec83377426c5c0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A91F 7476 bytes
font_00_sfnt_off0002441f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2441F 3556 bytes
font_01_sfnt_off000251a2.bin
1ee4c7af0cf1215ad0350bda84bfb64f46719ea4e0aaea2218de98e790e569f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251A2 13944 bytes
font_02_sfnt_off00027da7.bin
d20424fc06172a80e9a57d50afd8e467c70353d89e77cf5d69083560ed7f27db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DA7 14680 bytes
font_04_sfnt_off0002bf0f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF0F 6084 bytes
font_05_sfnt_off0002cea4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEA4 3752 bytes

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