Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd5095d069db0edb…

MALICIOUS

PDF

187.0 KB Created: 2015-07-28 14:39:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a0c9241dce9fbbf9078d599a1e668ae7 SHA-1: 04e28e98b07b97c7b312a078cc0d4d8e03e84cb3 SHA-256: fd5095d069db0edb11ba877cde66acbdfb10c3046b1833add926a7abaaf5d64c
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 at botcraftman.ru. This suggests the document is designed to lure users to a malicious website. 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=%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B+%D0%B5%D0%B3%D1%8D+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+2015+%D1%82%D0%B0%D0%BC%D0%B1%D0%BE%D0%B2%D1%81%D0%BA%D0%B0%D1%8F+%D0%BE%D0%B1%D0%BB%D0%B0%D1%81%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4223/4223021_notuy_dlya_bayana_smuglyanka.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196746_ocenka_kompetenciy_metodom_intervyu_svetlana_ivanova_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192785_simulyator_vuyzhivaniya_na_neobitaemom_ostrove.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246f5.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246F5 3556 bytes
font_01_sfnt_off00025478.bin
490ab8ed535c29fab7feccb6bc2bc0a81a6cd1be96a7fb6ee3e8579c0d05ccb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25478 14096 bytes
font_02_sfnt_off00028113.bin
d129b2306b70ce91da7e21aa5dc95ff0e57120c5b3b157257a57119c7bcd55f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28113 14640 bytes
font_03_sfnt_off0002ac4c.bin
bbfc21387556b8f7c6f100e34457dc69b6d18bfe04a0a846713360c4ba709231		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC4C 7396 bytes
font_04_sfnt_off0002c20d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C20D 6084 bytes
font_05_sfnt_off0002d1a2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1A2 3752 bytes

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