Malicious PDF — malware analysis report

Static analysis result for SHA-256 a02cd01be9aef753…

MALICIOUS

PDF

187.0 KB Created: 2015-07-24 03:08:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c8c1cd3939d3dc6faacf0691d44f00f0 SHA-1: 3b4e600b31e7eaf29faf4c7b3a1329225e3bd1b0 SHA-256: a02cd01be9aef753fdabb84d0f55da42e2563b44dfea5de85df9abdf3887e048
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. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was not sufficiently readable to determine a 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=%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD%D0%BD%D1%8B%D0%B9+%D1%81%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D1%87%D0%BD%D0%B8%D0%BA+%D0%BC%D1%82%D1%81+%D0%B1%D0%B5%D0%BB%D0%B0%D1%80%D1%83%D1%81%D1%8C+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187454_krasivoe_oformlenie_listov_a4.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187681_reshenie_egye_po_informatike_2015.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185210_serial_mentovskie_voynuy_7_soderzhanie_seriy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000247c6.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247C6 3556 bytes
font_01_sfnt_off00025549.bin
7b0d73526a1deeb9dd603436955e38091e9655c93013e2edc72884a204f52fcd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25549 14636 bytes
font_02_sfnt_off000282f9.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282F9 14468 bytes
font_03_sfnt_off0002adab.bin
3aafb630a504b16936b04434ab6c00aa786557f74c010b6d5120a79575abc159		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADAB 7108 bytes
font_04_sfnt_off0002c246.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C246 6084 bytes
font_05_sfnt_off0002d1db.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1DB 3752 bytes

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