Malicious PDF — malware analysis report

Static analysis result for SHA-256 b03052a975e5a812…

MALICIOUS

PDF

188.3 KB Created: 2015-08-05 15:05:23 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bbec36a03c4a7c37265f0bfdd53763c3 SHA-1: f0e9aa5064431c1dc6a2d385fb27b41e3f7eab22 SHA-256: b03052a975e5a81280e4ae4c233e4b4888429489c9e4a6fd2f133a11200de1a3
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL `http://botcraftman.ru/...` is the primary indicator of compromise, suggesting the PDF's purpose is to lure the user to a potentially 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%BF%D0%B0%D1%83%D0%BB%D0%BE+%D0%BA%D0%BE%D1%8D%D0%BB%D1%8C%D0%BE+%D0%B2%D0%B0%D0%BB%D1%8C%D0%BA%D0%B8%D1%80%D0%B8%D0%B8+%D0%B0%D1%83%D0%B4%D0%B8%D0%BE%D0%BA%D0%BD%D0%B8%D0%B3%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305517_skachat_aktivator_dlya_windows_7_maksimalnaya_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305209_igra_snayper_voin_prizrak_2_2013_skachat_torrent_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304584_poliklinika_na_bebelya_160_raspisanie_vrachey.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024b92.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B92 3556 bytes
font_01_sfnt_off00025915.bin
9bcd6175f84c70c7a4c70603b6e7533b58926c6f769d2c0c35d325b9c4b69203		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25915 15232 bytes
font_02_sfnt_off000288f9.bin
2faf238a7982558102f008fa2e03cbd823800727545a7f10afda32250c8cbf2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x288F9 14468 bytes
font_03_sfnt_off0002b3ac.bin
4b3eef4c669705567401e1d647c07b70b7ed37388b6c374a00281569cc79cd18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3AC 6856 bytes
font_04_sfnt_off0002c77d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C77D 6084 bytes
font_05_sfnt_off0002d712.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D712 3752 bytes

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