Malicious PDF — malware analysis report

Static analysis result for SHA-256 7936185d7d179e7f…

MALICIOUS

PDF

187.6 KB Created: 2015-07-26 09:59:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 988ff0bdd0d5a5b7c64e17cae567c201 SHA-1: 63d71d9618aae7f07ce633be11a4d85cf1734bb2 SHA-256: 7936185d7d179e7f4382b25171baf5d2a3cea1320248870004cc6f3fff496206
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a direct link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%82%D0%B0%D0%B9%D0%BD%D1%8B%D0%B9+%D0%B4%D0%BD%D0%B5%D0%B2%D0%BD%D0%B8%D0%BA+%D0%B4%D0%B5%D0%B2%D1%83%D1%88%D0%BA%D0%B8+%D0%BF%D0%BE+%D0%B2%D1%8B%D0%B7%D0%BE%D0%B2%D1%83+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%BD%D0%B8%D0%B3%D1%83+%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://img1.liveinternet.ru/images/attach/c/5//4213/4213590_skachat_igru_ezda_na_russkih_mashinah_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4210/4210652_akt_demontazha_obrazec.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190709_demoversiya_egye_po_russkomu_yazuyku_2015_fi_pi_skachat.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_off00024a59.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A59 3556 bytes
font_01_sfnt_off000257dc.bin
08eeaabca6e5e026a0e2d4bbaaca8f83a216c7e29565ddb31a1432091050d1d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x257DC 14584 bytes
font_02_sfnt_off00028599.bin
c521cb7f32363069232cb6cf023e13d81dfc7f2346484feaa89f0b3c8cd570ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28599 14520 bytes
font_03_sfnt_off0002b06b.bin
d5acab61a00b7898d34c8c4b3a672bff3ff1c211feb325f07b41418f667fef5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B06B 7048 bytes
font_04_sfnt_off0002c4cc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4CC 6084 bytes
font_05_sfnt_off0002d461.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D461 3752 bytes

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