Malicious PDF — malware analysis report

Static analysis result for SHA-256 2732e8506b4224aa…

MALICIOUS

PDF

183.4 KB Created: 2015-08-09 14:30:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c2a4029b19bfb849b494e2624b75b166 SHA-1: 607104d790a0df927938d8e06e4cec64c09be801 SHA-256: 2732e8506b4224aa28e17ae4dd54e3f6ce4b13330cc531b520e931616d36c1d6
90 Risk Score

Malware Insights

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

The PDF file was flagged by a malicious redirector heuristic, pointing to the URL http://botcraftman.ru/. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly suggested maliciousness. No scripts were extracted, and the document body was not parsable text, so the primary indicator is the malicious URL.

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=%D1%87%D0%B8%D1%82%D1%8B+%D0%BD%D0%B0+%D0%B2%D0%B8%D1%80%D1%82%D1%8B+%D0%B2+samp&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4408/4408847_skachat_treyner_k_igre_stalker_chistoe_nebo.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4391/4391249_foto_transvestitov_goluye.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385367_francuzskorusskiy_slovar_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a21e.bin
a1152f6dcd4fb4359a64bd36982194b5447329081e42cceb5c4f8c8d7a1594dc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A21E 6348 bytes
font_00_sfnt_off00023c88.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C88 3556 bytes
font_01_sfnt_off00024a0b.bin
27e9c9ef57a9d1313f3cf9ef6c6026caf78a778662f12f0162c46a164699df1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A0B 14288 bytes
font_02_sfnt_off00027696.bin
a35944c3d5544345de21a9c4c55264e83e5f6c63f182c31e203dc334d04410b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27696 14748 bytes
font_04_sfnt_off0002b3f5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3F5 6084 bytes
font_05_sfnt_off0002c38a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C38A 3752 bytes

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