Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd0a4f60525b5718…

MALICIOUS

PDF

188.9 KB Created: 2015-08-08 10:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1b206ffac632148f2d9aad5bd27fde76 SHA-1: 47d3d2ac8f951c1d79ef18e5c133c983cd5e7cbd SHA-256: fd0a4f60525b57186d2e336c82b8b10caa1f0d3e1f27be586d32e165ed11e34c
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was truncated and uninformative.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%B0%D1%80%D1%82%D1%83+%D0%BA%D1%80%D0%B0%D1%81%D0%B8%D0%B2%D1%8B%D0%B9+%D0%B4%D0%BE%D0%BC+%D0%B4%D0%BB%D1%8F+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+152&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384697_sims_3_gold_edition_2015_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383751_gdz_rozental_10_11.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384741_commax_dpv4mtn_shema_podklyucheniya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024d5c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D5C 3556 bytes
font_01_sfnt_off00025adf.bin
f295ed83cb109f58f97ea10f2fa630c81936920e45596c47c0c9c883436462db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25ADF 15116 bytes
font_02_sfnt_off00028961.bin
d09923cbdc305950305c98b16fd731505617ef87fa48d967c0f3dc823af7b848		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28961 14640 bytes
font_03_sfnt_off0002b494.bin
734fa40ddef47c3146e23b6c2efc0248d9f185d739c344fa6eeab87af0de5a7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B494 7276 bytes
font_04_sfnt_off0002c9f2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9F2 6084 bytes
font_05_sfnt_off0002d987.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D987 3752 bytes

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