Malicious PDF — malware analysis report

Static analysis result for SHA-256 f95ffe8f5e20607a…

MALICIOUS

PDF

187.1 KB Created: 2015-07-24 12:34:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 3278d30f32e40a9e6ed6f0fb55db619f SHA-1: b2ff743be91b69408ee2acbc45c5dc670dadf6e4 SHA-256: f95ffe8f5e20607a4f9b3f69d08a0b96a2426bc70dddeb673608215fac031175
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 infrastructure. This suggests the document is designed to lure users to a malicious website. 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=%D0%9E%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%BF%D0%B8%D1%81%D1%8C%D0%BC%D0%B0+%D0%BE+%D0%BD%D0%B0%D0%B7%D0%BD%D0%B0%D1%87%D0%B5%D0%BD%D0%B8%D0%B8+%D0%B4%D0%B5%D0%BB%D0%BE%D0%B2%D0%BE%D0%B9+%D0%B2%D1%81%D1%82%D1%80%D0%B5%D1%87%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187836_zayavlenie_na_perevod_mt103_vtb_24.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184797_programma_chernuyy_spisok_dlya_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184785_prohozhdenie_smerti_vopreki_2_odnim_dnem_zhivu.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000248a1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248A1 3556 bytes
font_01_sfnt_off00025624.bin
e41e732431613c3e57ad85247e6539251545de56f8ca20f8ac24cd5171dbdfad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25624 14436 bytes
font_02_sfnt_off000283b4.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x283B4 14468 bytes
font_03_sfnt_off0002ae66.bin
c4c6d9463ed932eb8707e024d31775570c05ba0f29a4435f684a5a4779096839		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE66 6992 bytes
font_04_sfnt_off0002c296.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C296 6084 bytes
font_05_sfnt_off0002d22b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D22B 3752 bytes

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