Malicious PDF — malware analysis report

Static analysis result for SHA-256 93425498244541b6…

MALICIOUS

PDF

187.6 KB Created: 2015-07-25 23:36:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 27b1381b032ce8fc741d3b27ab400cdd SHA-1: 6e13d6cb5faf834617e8289093b45701cf2f4416 SHA-256: 93425498244541b6ffa21f40ec56efff4df5f5227944eecbb869f4a35d983a10
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. The presence of this link suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was not readable, 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%81%D1%80%D0%B5%D0%B4%D0%BD%D0%B8%D0%B9+%D0%B1%D0%B0%D0%BB%D0%BB+%D0%BF%D0%BE+%D1%80%D0%BE%D1%81%D1%81%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192020_skachat_kontr_strayk_besplatno_na_kompyuter.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203697_sims_2_12_v_1_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192708_dobrodetel_yegoizma_skachat_fb2.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024763.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24763 3556 bytes
font_01_sfnt_off000254e6.bin
bc098b8a48e8d7f5d35902949947bb8fbbaaa2f8644d15332afad9155215dd96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x254E6 14844 bytes
font_02_sfnt_off0002834c.bin
d129b2306b70ce91da7e21aa5dc95ff0e57120c5b3b157257a57119c7bcd55f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2834C 14640 bytes
font_03_sfnt_off0002ae85.bin
53750a77fa450facb0c5c314021770bb47de22b5bfb39283b618e4fca589d575		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE85 7460 bytes
font_04_sfnt_off0002c47a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C47A 6084 bytes
font_05_sfnt_off0002d40f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D40F 3752 bytes

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