Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc8bbf166f4dcbb…

MALICIOUS

PDF

186.7 KB Created: 2015-07-23 21:04:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a163501bad5ec96c92d3d94bf8b054d6 SHA-1: a8967275675f0d51038ea4aec012de6933f4325b SHA-256: 1dc8bbf166f4dcbb94c02fd3b59a46a54ff7110939536ef079f413401ac75875
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 points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%BD%D1%8D%D0%BD%D1%81%D0%B8+%D0%B4%D1%80%D1%8E+%D0%BF%D1%80%D0%B8%D0%B7%D1%80%D0%B0%D0%BA+%D0%BF%D0%BE%D0%BC%D0%B5%D1%81%D1%82%D1%8C%D1%8F+%D1%82%D0%BE%D1%80%D0%BD%D1%82%D0%BE%D0%BD+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%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://img0.liveinternet.ru/images/attach/c/5//4184/4184762_skachat_nhl_15_cherez_torrent_na_kompyuter_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184526_zvuk_mela_po_doske_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184406_vvedenie_v_neyrotransforming_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000247ad.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247AD 3556 bytes
font_01_sfnt_off00025530.bin
746315e4ab4fc2cee975220f2b345d0d58972e67d363f0ddb13ea4f50e445e2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25530 14348 bytes
font_02_sfnt_off00028228.bin
20910cc2b147a63b6c39c290e4b056906e715eb78bd05d72a95af2fff9092e74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28228 14468 bytes
font_03_sfnt_off0002acdc.bin
c3c10b8513e7d4a19fd2ba7c5a8544bb30cae75ba051d02dea188f9a80cef1e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACDC 6932 bytes
font_04_sfnt_off0002c0f0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0F0 6084 bytes
font_05_sfnt_off0002d085.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D085 3752 bytes

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