Malicious PDF — malware analysis report

Static analysis result for SHA-256 4704dd00e8c128f9…

MALICIOUS

PDF

186.0 KB Created: 2015-08-06 18:41:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9b9fd9be9fbedfd471b5108ff1fa513a SHA-1: dadb044830ce519f509ec0bb04957ca1d9521976 SHA-256: 4704dd00e8c128f90c85ccbdd39330b80e8aa3283e447a51851444a3b1ddf850
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, http://botcraftman.ru/. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was heavily truncated and unreadable.

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%83%D0%BD%D0%B5%D1%81%D0%B5%D0%BD%D0%BD%D1%8B%D0%B5+%D0%B2%D0%B5%D1%82%D1%80%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://img1.liveinternet.ru/images/attach/c/6//4309/4309205_windows_7_ultimate_x32.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4316/4316837_programma_dlya_skachivaniya_video_iz_interneta.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305823_skachat_kartu_tenerife_dlya_navitel.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024611.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24611 3556 bytes
font_01_sfnt_off00025394.bin
5df50dd21ac316f74a78bf902237afa75656c913f562ae504c896f9c80a7ddaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25394 14612 bytes
font_02_sfnt_off0002813a.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2813A 14468 bytes
font_03_sfnt_off0002abec.bin
04b33ae2fea7380dd280fa600f687ed16ee4965f0250bc269dc2ebb5ba85a5d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABEC 6404 bytes
font_04_sfnt_off0002be09.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE09 6084 bytes
font_05_sfnt_off0002cd9e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD9E 3752 bytes

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