Malicious PDF — malware analysis report

Static analysis result for SHA-256 d521358320b41272…

MALICIOUS

PDF

186.1 KB Created: 2015-07-24 00:26:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 00eb45cf1abbcb1c9a53e7ad291f2600 SHA-1: 56d5a710e88b23d1829e1165e130af8d221edac1 SHA-256: d521358320b412723c31cb199c2572f48ed75fa5f1a203955a4116ac4167ba69
90 Risk Score

Malware Insights

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

The PDF contains an embedded link to a known malicious redirector, botcraftman.ru. This indicates the document is intended to lure users to a malicious site, likely for phishing or malware delivery. The ML classifier also strongly flagged this PDF as malicious. 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=%D1%84%D0%B8%D0%B7%D0%B8%D0%BA%D0%B0+8+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BF%D0%B5%D1%80%D1%8B%D1%88%D0%BA%D0%B8%D0%BD+%D1%83%D1%87%D0%B5%D0%B1%D0%BD%D0%B8%D0%BA+%D1%87%D0%B8%D1%82%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185426_slova_blagodarnosti_v_stihah_nauchnomu_rukovoditelyu.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184630_skachat_chit_na_ks_1_6_aim_i_vh.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184764_obrazec_zapolneniya_platezhnogo_porucheniya_ndfl.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000244c9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x244C9 3556 bytes
font_01_sfnt_off0002524c.bin
bd642eb8f276eb8367209ab38470d3250b4e1aac3210aa1bfed71d217eed4765		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2524C 14528 bytes
font_02_sfnt_off00027fac.bin
e21bdabe7078e38c93d36e96df0f59440a39d45a771479db10e95e5e7839d82f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FAC 14520 bytes
font_03_sfnt_off0002aa7d.bin
4129a29d36eae485c616160c81ba5937833d33449c8f8f6cd0ef481b402d2f04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA7D 6980 bytes
font_04_sfnt_off0002beb5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEB5 6084 bytes
font_05_sfnt_off0002ce4a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE4A 3752 bytes

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