Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c0bc39386bf52c2…

MALICIOUS

PDF

188.6 KB Created: 2015-08-08 11:35:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 513b5c4f2ab7c710082e0eec0ebe6cbb SHA-1: 42df17a4a076139a751aeec439c6eb341d3ffd1b SHA-256: 5c0bc39386bf52c2de70480d91a61be5ae9bf8cedc38a940e37e29716b9322fa
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a direct link to a known malicious redirector URL. This indicates the document is likely part of a phishing or malware distribution campaign, leveraging the embedded link to redirect users to a harmful destination. No scripts were extracted, but the presence of a malicious link is sufficient evidence of malicious intent.

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%B2%D0%BE%D0%BA%D1%80%D1%83%D0%B3+%D1%81%D0%B2%D0%B5%D1%82%D0%B0+%D0%B7%D0%B0+80+%D0%B4%D0%BD%D0%B5%D0%B9+%D0%B8%D0%B3%D1%80%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386499_click_on_3_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386041_astronomiya_11_klass_uchebnik_levitan_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383817_saminside_instrukciya.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024bdb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BDB 3556 bytes
font_01_sfnt_off0002595e.bin
e2b9239527cbdfb6f7e4dd973174ba7bd143cb9180f2a561f5130a05c764c0ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2595E 15508 bytes
font_02_sfnt_off0002893d.bin
3fbfd0ffaebe29b0ec9b289ec7292665fd31d587d33d190b9e1dad7b36814980		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2893D 14680 bytes
font_03_sfnt_off0002b404.bin
ff44e83329fbd712cda985a89bb3c7333903a5da4e77a6f26e0ca07d9e859d74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B404 7072 bytes
font_04_sfnt_off0002c883.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C883 6084 bytes
font_05_sfnt_off0002d818.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D818 3752 bytes

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