Malicious PDF — malware analysis report

Static analysis result for SHA-256 71a159b07164927a…

MALICIOUS

PDF

186.5 KB Created: 2015-07-24 08:51:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 63bbd5354bc1d6de42d237c1017946bd SHA-1: f96c283a0eb76d1d5354305d7c67e262c97eff69 SHA-256: 71a159b07164927ac643828ade21ea6cc0ea90b68ccecb3b84074d69433c1b8e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing campaign or used to distribute malware. The embedded URL is the primary indicator of malicious intent.

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=Asus+m5a97+evo+r20+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190281_licenzionnuyy_klyuch_dlya_microsoft_word_2010.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187093_notuy_dlya_akkordeona_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184921_skachat_shrift_meiryo.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002aa0d.bin
001ce65e00b08cdc5cdad25bbf99b4c6d63081f01bd93dd6ce5c19fd5f144e72		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AA0D 7492 bytes
font_00_sfnt_off0002420a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2420A 3556 bytes
font_01_sfnt_off00024f8d.bin
365f627a9581c0af8a503f79657898aa866b6227ab890f9fa34c4a213e60fdce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F8D 15040 bytes
font_02_sfnt_off00027dfd.bin
d88b743a17a3544748405a4f972c92882e9259e1d19adabec1a526bfff28dd7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DFD 14904 bytes
font_04_sfnt_off0002c032.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C032 6084 bytes
font_05_sfnt_off0002cfc7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFC7 3752 bytes

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