Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd8ec4779b1fec9d…

MALICIOUS

PDF

187.1 KB Created: 2015-07-24 13:24:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2e6095de4a4ce394b07a435db0055938 SHA-1: abf730ac26fb40d88c05558f28ca7667aea50d4b SHA-256: dd8ec4779b1fec9dfd8a98198354e431b6ee5f38e7ab04059941f176dc288bf1
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 infrastructure. This heuristic, combined with the ML classifier's high confidence, strongly suggests the document is designed to lead users to a malicious site. The primary IOC is the identified malicious URL.

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%BE%D0%B7%D0%B4%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%B8%D0%B3%D0%BB%D0%B0%D1%88%D0%B5%D0%BD%D0%B8%D0%B5+%D0%BD%D0%B0+%D1%81%D0%B2%D0%B0%D0%B4%D1%8C%D0%B1%D1%83+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186929_skachat_igru_plants_vs_zombies_2_na_kompyuter_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185450_skachat_igru_dmc_devil_may_cry_2_cherez_torrent_na_pc.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188210_skachat_uniblue_driverscanner__klyuch.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024663.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24663 3556 bytes
font_01_sfnt_off000253e6.bin
398b751956e96d5c6a7806d15192f6f88520900bae4981c279a86913e7f7bcc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253E6 15408 bytes
font_02_sfnt_off000283c0.bin
d9775475238cab7937fa4e35d65fbe93a357e8a9e242d68b4cc886ecd1dec298		 pdf-font-stream PDF embedded font (sfnt) at offset 0x283C0 14520 bytes
font_03_sfnt_off0002ae8f.bin
b9cf8d3cb3c74b4070fba9b85b013b389bf4878fd1047df02c46e47d62d95664		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE8F 6912 bytes
font_04_sfnt_off0002c26f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C26F 6084 bytes
font_05_sfnt_off0002d204.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D204 3752 bytes

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