Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee2e1ed7788701a…

MALICIOUS

PDF

184.2 KB Created: 2015-07-25 20:03:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bfa0454ca9c53dec8341781a0d788de2 SHA-1: 2242aeafcf93c1a73e666db8818ac0901dab17a4 SHA-256: 3ee2e1ed7788701af2ec0ed01be5763d108613a8359ffc3fd97e8d03fae04dbd
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL 'http://botcraftman.ru/?lip&keyword=%D0%A3%D0%BA%D1%80%D0%B0%D0%B8%D0%BD%D1%81%D0%BA%D0%BE%D0%B5+%D1%82%D0%B2+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8' is the primary indicator of malicious intent. This suggests the document is designed to lure users to a harmful website.

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%A3%D0%BA%D1%80%D0%B0%D0%B8%D0%BD%D1%81%D0%BA%D0%BE%D0%B5+%D1%82%D0%B2+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199574_skachat_sims_4_cherez_torrent_russkaya_versiya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190845_lapti_tv_smotret_onlayn_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196620_skachat_maynkraft_s_modom_flans_mod.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002402c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2402C 3556 bytes
font_01_sfnt_off00024daf.bin
93e905bde93a1f92a9045248ba43f21413c4a9560ba0fe77ba45391766b0ce31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DAF 14344 bytes
font_02_sfnt_off00027ae9.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AE9 14468 bytes
font_03_sfnt_off0002a59c.bin
e5537b98d7ee90aaec091ab0fa376bf96f47ab8956c6ad41dcd9feedc731eb55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A59C 6164 bytes
font_04_sfnt_off0002b6e9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6E9 6084 bytes
font_05_sfnt_off0002c67e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C67E 3752 bytes

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