Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bce5fc07a9329bb…

MALICIOUS

PDF

188.1 KB Created: 2015-07-24 04:50:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b3a934be5daea8193e0ba9770e03b4e7 SHA-1: a0c53ed8bd2ef9357d3c5954c2b49118a64cd293 SHA-256: 6bce5fc07a9329bbeca7a03666da0666984bc3537b0f7c60f833deb432c5f08f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the malicious URL suggest an attempt to lure the user to a harmful site, likely for phishing or to download further malware.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D1%84%D0%B0%D0%BD%D1%82%D0%BE%D0%BC%D0%B0%D1%81+%D0%B2%D1%81%D0%B5+%D1%81%D0%B5%D1%80%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185677_skachat_knigu_mein_kampf_na_russkom.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183246_model_idef0_primer.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186845_shpargalki_po_zarubezhnoy_literature_20_veka.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_off00024a48.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A48 3556 bytes
font_01_sfnt_off000257cb.bin
8a755440f39565af8b2fb686f3b3b9a0098ac230baa5b2f3c98412ffaa54fff6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x257CB 15324 bytes
font_02_sfnt_off0002874c.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2874C 14468 bytes
font_03_sfnt_off0002b1fe.bin
a60b836d2604bece83eb16fb665331b801e937b30d6c09a8f10c4cf2e829923a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B1FE 7136 bytes
font_04_sfnt_off0002c6be.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6BE 6084 bytes
font_05_sfnt_off0002d653.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D653 3752 bytes

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