Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdcfec4d06f0ad28…

MALICIOUS

PDF

184.5 KB Created: 2015-07-23 21:13:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 35e1bd22749d1cf952b618476dd572ca SHA-1: 95c16cb52a20a7638170f0c3cc9b26e2e205ff08 SHA-256: cdcfec4d06f0ad28593027a0065f2dc43c83d6f5a7c28c1f559d0956dcaeaa02
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. The embedded URL is likely part of a phishing or malware delivery chain. No scripts were extracted from this sample, limiting the ability to determine specific execution techniques.

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%9A%D1%80%D0%B8%D1%81%D1%82%D0%B0%D0%BB%D0%BB+%D1%82%D0%B2+%D0%BA%D0%BE%D0%B4+%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%B0%D1%86%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184822_kod_aktivacii_dlya_kaspersky_internet_security_2015_na_365_dney.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184851_adobe_after_effects_cs3_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184448_rezultatuy_egye_po_matematike_2015_rostovskaya_oblast.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e8c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E8C 3556 bytes
font_01_sfnt_off00024c0f.bin
78a32d6d7a780cc396dc650d9ea53f2b99ff7cc2e016bfcc79548ef66b969769		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C0F 15396 bytes
font_02_sfnt_off00027bb1.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BB1 14468 bytes
font_03_sfnt_off0002a664.bin
674c68b4fb1321fecade0d49a4160a34fd234d14fc3ef52d48af8d8b11f78524		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A664 6292 bytes
font_04_sfnt_off0002b81b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B81B 6084 bytes
font_05_sfnt_off0002c7b0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7B0 3752 bytes

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