Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0b9484664560438…

MALICIOUS

PDF

188.3 KB Created: 2015-07-24 12:26:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c327f32654b4b165a76e218194cdb2a1 SHA-1: 3f84b5616772020d798d0c1e679ebe1a0f1acdbb SHA-256: f0b94846645604386f3c35c16a4e3bf95d49dd2e3c55552dd9a84fdd0dad67d8
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates an attempt to lure the user to a malicious site, likely for further exploitation or credential harvesting. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was truncated, limiting further analysis of the 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=%D0%BD%D0%BE%D1%80%D1%82%D0%BE%D0%BD+%D0%B0%D0%BD%D1%82%D0%B8%D0%B2%D0%B8%D1%80%D1%83%D1%81+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+90+%D0%B4%D0%BD%D0%B5%D0%B9+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+2015&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192041_skachat_igruy_na_nokia_asha_305.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185161_klyuch_dlya_gta_4_games_for_windows_live.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184805_skachat_besplatno_drayvera_dlya_veb_kameruy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024989.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24989 3556 bytes
font_01_sfnt_off0002570c.bin
fe6ac1e56d83bd57f45657d350a5df07c3803c1e350da7449fc1c4f98e8a47b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2570C 15400 bytes
font_02_sfnt_off0002869d.bin
67292db8ba8c029208d2dd6aae19ce224bc9edcb481bf111ec07a07a00ab0fcd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2869D 14640 bytes
font_03_sfnt_off0002b1d8.bin
3c6574828756775a1b38e9cbcffef2cdaa3b970dadcec499f258a5900e4b0b6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B1D8 7360 bytes
font_04_sfnt_off0002c779.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C779 6084 bytes
font_05_sfnt_off0002d70e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D70E 3752 bytes

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