Malicious PDF — malware analysis report

Static analysis result for SHA-256 e58429f9780d2245…

MALICIOUS

PDF

184.5 KB Created: 2015-07-24 14:41:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e6f8dd3b39f96acefbb051f5d9b28536 SHA-1: 18a0354930ae2fbc4eb1a000e417ed9c73822b94 SHA-256: e58429f9780d2245208ab7d6ce9f671283552a0055e1e4f75045e3dba9b3c79e
92 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 infrastructure. The ML classifier also flagged this PDF with high confidence. The primary attack vector appears to be luring the user to the malicious URL, which is likely a phishing page or a distribution point for further malware. No scripts were extracted from this sample.

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%D1%83%D0%BF%D0%B5%D1%80+%D0%B8%D0%BD%D1%84%D0%BE+%D0%B6%D1%8B%D0%BB%D0%B4%D1%8B%D0%B7%D0%B4%D0%B0%D1%80+%D1%82%D0%BE%D0%BB%D0%B3%D0%BE%D1%81%D1%83&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185895_pin_kod_na_varfeys_na_5000_kreditov_2015_iyun.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192181_skachat_besplatnuye_flyesh_pleer_na_telefon_nokia_asha_302.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185358_buystro_saditsya_batareya_na_ayfon_5.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e49.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E49 3556 bytes
font_01_sfnt_off00024bcc.bin
44376932e89f53eed167c0c8f16c97360b75ef87903361bdf38f1d681cb2a150		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BCC 14520 bytes
font_02_sfnt_off00027992.bin
b79d56b22a3d37edc4793e81e28af2d51416733c1decb699be69ae0b1e9dff38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27992 14468 bytes
font_03_sfnt_off0002a441.bin
823ba74693546300f2f11be988c8c7bd63f066190f8f2a461a933ce482c4f436		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A441 6832 bytes
font_04_sfnt_off0002b809.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B809 6084 bytes
font_05_sfnt_off0002c79e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C79E 3752 bytes

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