Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ff7d7f217741ce…

MALICIOUS

PDF

185.9 KB Created: 2015-08-08 09:39:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b0d268f3d5b97af308ccb55f1d752612 SHA-1: 5fca8ac9bc0cbf6716f3cf3ae24e47310d15b0ea SHA-256: 96ff7d7f217741ceca7778ae66c761bed41729cd5a11438a4ee44966f2c4c92f
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 identified as a malicious redirector. This suggests the document is designed to lure users to a harmful website.

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=%D0%B4%D0%B8%D1%81%D0%BF%D0%B5%D1%82%D1%87%D0%B5%D1%80+%D1%80%D0%B8%D1%81%D1%83%D0%BD%D0%BA%D0%BE%D0%B2+microsoft+office+2015+%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://img1.liveinternet.ru/images/attach/c/6//4383/4383980_skachat_skins_1_sezon_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384157_skachat_apple_mobile_device.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383705_skachat_obuchayuschie_multfilmuy_dlya_detey.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a762.bin
814f4a5b76c4b68e6a4ddc4744dd1f245f68c202956edfc1b374f4656d50fc1e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A762 7628 bytes
font_00_sfnt_off00023f38.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F38 3556 bytes
font_01_sfnt_off00024cbb.bin
a781b158ed38240998c076584b19c650508015a990e5a09165dcda1c4dd3ef42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CBB 14928 bytes
font_02_sfnt_off00027aff.bin
5105bb0eb56403a90ab8111b0f8220d4945c54f50322732c36f3ca90b3fb7466		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AFF 15020 bytes
font_04_sfnt_off0002bdec.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDEC 6084 bytes
font_05_sfnt_off0002cd81.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD81 3752 bytes

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