Malicious PDF — malware analysis report

Static analysis result for SHA-256 a559254a9ab99159…

MALICIOUS

PDF

185.4 KB Created: 2015-08-05 16:42:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0d4d9ddbacdf940bd6c1f628ef04f29d SHA-1: 1b2fc2ec0bb8916af4e4d90644b86b739dcbabce SHA-256: a559254a9ab99159b87d0aee6d5af7444f4651b1137cbb9ea5c834714b15b059
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. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact lure.

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%B2%D1%8F%D0%B7%D0%B0%D0%BD%D0%B8%D0%B5+%D0%BA%D0%BE%D1%81%D1%8B%D0%BD%D0%BE%D0%BA+%D1%81%D0%BF%D0%B8%D1%86%D0%B0%D0%BC%D0%B8+%D1%81%D1%85%D0%B5%D0%BC%D1%8B+%D0%B8+%D0%BE%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306063_sura_yasin_tekst.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305511_eden_world_builder_dlya_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305326_skachat_yeverest_na_russkom.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024291.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24291 3556 bytes
font_01_sfnt_off00025014.bin
97047218809b8791a208c55a84ac7013eb31efd241ac8a8015900b8ca511d5a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25014 14656 bytes
font_02_sfnt_off00027e3c.bin
ac256187795b95e32ab95fe5f05982c21c052d3491be979748298a5b41e59962		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E3C 14748 bytes
font_03_sfnt_off0002a947.bin
5faded9b1075c9fae42dab175ec6d14109aca39179b0333164bf95942fe3571c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A947 6564 bytes
font_04_sfnt_off0002bbfc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBFC 6084 bytes
font_05_sfnt_off0002cb91.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB91 3752 bytes

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