Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d901e4a2d71fa02…

MALICIOUS

PDF

186.6 KB Created: 2015-07-24 20:41:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a6137f6137d707d355fc6fb8e1f36caf SHA-1: 726d0b14b60c42cab2db35335b9305c892be5e20 SHA-256: 0d901e4a2d71fa0296e9b9747c0bb37e6d3b84ff91ee5ab0245f8e23268a0c7f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/...` is identified as a malicious redirector, suggesting the document's primary purpose is to lure users to this site. While no scripts were explicitly extracted, the PDF structure and the malicious link strongly indicate an attempt to deliver a payload or phish credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8732857-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8732857-0
  • 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%9C%D0%B0%D0%B9%D0%BD+%D0%BA%D0%B0%D0%BC%D0%BF%D1%84+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+pdf&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192488_skachat_swat_4_torrent_s_russkoy_ozvuchkoy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184378_algebra_7_klass_mordkovich_uchebnik_chitat_onlayn.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192942_skachat_igru_purble_place_besplatno.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024463.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24463 3556 bytes
font_01_sfnt_off000251e6.bin
a0d51b0684162a96e591cbde6a2d97f7668378e78ce469444ad58ba056be3ac3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251E6 15512 bytes
font_02_sfnt_off00028221.bin
1cf905e2828f21bff9d691db1c24bfb557907d127e4b2bb0e7f5194afa5cf6ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28221 14564 bytes
font_03_sfnt_off0002ad28.bin
1fb499240af40c8159ff3225c910a3f71599677e3c564042558f62e92e6a4b01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD28 6784 bytes
font_04_sfnt_off0002c0b4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0B4 6084 bytes
font_05_sfnt_off0002d049.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D049 3752 bytes

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