Malicious PDF — malware analysis report

Static analysis result for SHA-256 aed504b0b1b36ea7…

MALICIOUS

PDF

185.3 KB Created: 2015-07-24 23:34:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ca1f8be1f92d98c480673603a7588f66 SHA-1: 54a3a395901efc6d040204ba3d0f8c56a616e5ea SHA-256: aed504b0b1b36ea74b37654995741caa9532d5202fab075403ef9fb7a1a96904
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 associated with malicious redirectors. 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%80%D1%83%D1%81%D1%81%D0%BA%D0%B0%D1%8F+%D1%80%D1%8B%D0%B1%D0%B0%D0%BB%D0%BA%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194824_zvuki_korshuna.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195081_skachat_diablo_2_cherez_torrent_russkuyu_versiyu_polnuyu.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192820_skachat_chit_na_m3_v_tankah_onlayn.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241a3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241A3 3556 bytes
font_01_sfnt_off00024f26.bin
819db411f61a6cf2b43396741efcf00be7ff2bffe330dc8d6a3b0884cfbfe1b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F26 14332 bytes
font_02_sfnt_off00027c6d.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C6D 14468 bytes
font_03_sfnt_off0002a71f.bin
c6bd2abba70b1f8efd9b26d5ab0455023a8c2fb34d9bd0d0dee5169b1cc88127		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A71F 6948 bytes
font_04_sfnt_off0002bb4c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB4C 6084 bytes
font_05_sfnt_off0002cae1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CAE1 3752 bytes

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