Malicious PDF — malware analysis report

Static analysis result for SHA-256 719967500d793ae0…

MALICIOUS

PDF

187.1 KB Created: 2015-07-23 20:59:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: afd0636fdcc530c2778d4b9ae6b0c4fb SHA-1: 7dabe84582b9b3ad7c6671405aec804ac51d6075 SHA-256: 719967500d793ae0a9279dd6c0517301d9492c81a6b6ca1a3ccc64672543921e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the presence of a malicious URL suggests an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

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%9E%D1%81%D0%BD%D0%BE%D0%B2%D1%8B+%D1%80%D0%B5%D0%B0%D0%BD%D0%B8%D0%BC%D0%B0%D1%82%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D0%B8+%D0%B7%D0%B0%D1%80%D1%8F%D0%BD%D1%81%D0%BA%D0%B0%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184418_novaya_forma_mchs_dlya_fotoshopa.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184529_klyuch_dlya_windows_8.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184502_molodezhka_1_sezon_skachat_torrent_v_horoshem_kachestve.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_off000248c7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248C7 3556 bytes
font_01_sfnt_off0002564a.bin
63cbb38752ecb7475f02771298a1161632beb4347714543ece2ae9efdd4f6e8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2564A 14424 bytes
font_02_sfnt_off000283e0.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x283E0 14468 bytes
font_03_sfnt_off0002ae92.bin
0f85a750192a0aafb6e9c7280d5e5353d17fd896df31eb93dd424557b57bc8a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE92 6940 bytes
font_04_sfnt_off0002c2ad.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2AD 6084 bytes
font_05_sfnt_off0002d242.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D242 3752 bytes

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