Malicious PDF — malware analysis report

Static analysis result for SHA-256 e92803da9ff8829e…

MALICIOUS

PDF

186.6 KB Created: 2015-07-25 23:27:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d9bc2fb950b138817ddbde10c846cf0c SHA-1: faad06a70fa98eca9b9574e8d0f4a5e2e995ce3e SHA-256: e92803da9ff8829e49344365e0e64d2b14a5ffe0cf08600b9709b0eaf83c988d
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, http://botcraftman.ru/. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence for a malicious redirection attack.

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%9F%D0%B5%D1%80%D0%B5%D0%B4%D0%B5%D0%BB%D0%BA%D0%B0+%D0%BF%D0%BD%D0%B5%D0%B2%D0%BC%D0%B0%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D0%BF%D0%BC+mp+654%D0%BA+%D0%BF%D0%BE%D0%B4+%D0%BC%D0%B5%D0%BB%D0%BA%D0%B0%D1%88%D0%BA%D1%83+22lr&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4201/4201733_russkie_zvaniya_dlya_privat_crossfire.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193173_chit_na_vormiks_na_rubinuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4208/4208999_harakteristika_na_voditelya_dlya_nagrazhdeniya_gramotoy_obrazec.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024356.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x24356 3556 bytes
font_01_sfnt_off000250d9.bin
672ba7b90214c857dd175b7f574610fbfa0bace4db205725c71fb587f656402c
pdf-font-stream PDF embedded font (sfnt) at offset 0x250D9 14828 bytes
font_02_sfnt_off00027f61.bin
f68528ddd7c5a6eabb37b6a1467de507b1673c1804a5805ad409e136117fe865
pdf-font-stream PDF embedded font (sfnt) at offset 0x27F61 14864 bytes
font_03_sfnt_off0002ab2f.bin
fcb6dc220b75c98e994e975b5c22691d65add70eaa3310b19405d7ca692417ef
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB2F 7344 bytes
font_04_sfnt_off0002c0cc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0CC 6084 bytes
font_05_sfnt_off0002d061.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D061 3752 bytes