Malicious PDF — malware analysis report

Static analysis result for SHA-256 4884af681d738038…

MALICIOUS

PDF

186.7 KB Created: 2015-07-24 23:35:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 22f81e8eae7fe6095c68aa6011616668 SHA-1: 81919afe116ae88d3270e77875c10993e7049244 SHA-256: 4884af681d73803868a7808fdf386909bb1c97eccfb98fb9c6f9a87d9086b242
92 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 indicates the document is likely a lure designed to redirect users to a malicious website. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure. The primary IOC is the malicious redirector URL.

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%D1%81%D1%82%D1%8B+%D0%BF%D0%BE+%D0%BD%D0%B5%D0%BC%D0%B5%D1%86%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83+11+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D1%81+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D0%B0%D0%BC%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187805_skachat_serial_igra_prestolov_2_sezon_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195068_skachat_sims_3_16_v_1_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189446_servera_na_maynkraft_152_gde_dayut_adminki_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000248ae.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248AE 3556 bytes
font_01_sfnt_off00025631.bin
0f9f1e8f1ce213e7f338b3e2df7794ea44f1cba4d3516d7c0561219a10028aa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25631 14284 bytes
font_02_sfnt_off000282fc.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282FC 14468 bytes
font_03_sfnt_off0002adaf.bin
b9aef48231d564112a1d3d0e1292b888faf298f4249ac99cc954dd45f5220d16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADAF 6772 bytes
font_04_sfnt_off0002c128.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C128 6084 bytes
font_05_sfnt_off0002d0bd.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0BD 3752 bytes

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