Malicious PDF — malware analysis report

Static analysis result for SHA-256 350109549aec08d4…

MALICIOUS

PDF

183.2 KB Created: 2015-07-24 04:25:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b8fb8814c58c354b0a34e113396ade76 SHA-1: 968a2f71f3416ff44323e6b222893b0f5bcf92ab SHA-256: 350109549aec08d4c1d0311c11ba7023ea2b1de1333a6cc08429b207c023cb52
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. The embedded URL is the primary indicator of malicious intent, likely serving as a gateway for further malicious activity such as phishing or malware distribution.

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+wh%D0%B0ts%D0%B0%D1%80%D1%80&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185938_kak_otkruyt_zakruytuyy_profil_na_odnoklassnikah.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185417_malenkie_smeshnuye_scenki_dlya_detey.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187844_obrazec_avtobiografii_v_prokuraturu.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a1af.bin
5a73a3859a9ac801f3645291530cbfb289064248035087e1a1a2263f9f3b65ab		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A1AF 6156 bytes
font_00_sfnt_off00023aae.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23AAE 3556 bytes
font_01_sfnt_off00024831.bin
d00c6c55b49358dec68e6c8d8f11e08c7eef0e5d1aa21603c49f9ac90fcf33b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24831 14908 bytes
font_02_sfnt_off0002763d.bin
e547d78b690e3c049adc86114a5ffa254c58acb167df4d1e03aeccab7cacbfc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2763D 14748 bytes
font_04_sfnt_off0002b306.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B306 6084 bytes
font_05_sfnt_off0002c29b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C29B 3752 bytes

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