Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1663e24d13d9261…

MALICIOUS

PDF

184.3 KB Created: 2015-07-24 11:41:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 190775c9dbe1851e1d5c5fdddead9efb SHA-1: 1a2e1fd4f67702e75e45570b30239c1dc466507d SHA-256: c1663e24d13d9261f40ae8dd9711483957e445ac1de992fe6c42fe985db40225
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The redirector URL is likely used to funnel users to a malicious website for phishing or malware delivery. No scripts were extracted, and the document body was not parsable.

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=samsung+clx-3305+%D0%BF%D1%80%D0%BE%D1%88%D0%B8%D0%B2%D0%BA%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%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//4185/4185440_raspiska_v_poluchenii_zadatka_za_garazh_obrazec.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184937_skachat_sbornik_kabriolet_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191454_kim_po_matematike_dlya_spo.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a0a2.bin
4f08a6f02aa6ec05593b1af68f4c09e12bf2856c293705f0c33dbf295c927511		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A0A2 7640 bytes
font_00_sfnt_off00023990.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23990 3556 bytes
font_01_sfnt_off00024713.bin
3b46e11f53e18eb067ead86a549fe4c4e0a6316ec31ef63ec5b01580b0219a3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24713 14448 bytes
font_02_sfnt_off000273fa.bin
bc53da2b098ed7acf757c1e5c890a2c96cbd61c540d9d59bb1129dcc5286cb7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x273FA 15144 bytes
font_04_sfnt_off0002b734.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B734 6084 bytes
font_05_sfnt_off0002c6c9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6C9 3752 bytes

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