Malicious PDF — malware analysis report

Static analysis result for SHA-256 d114341e4e225cc1…

MALICIOUS

PDF

187.3 KB Created: 2015-07-23 21:16:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9d9c3c311a57699f79fc78b0908df68d SHA-1: 9c9bb0957504c5afb4519c3a8b77407afe9d55a0 SHA-256: d114341e4e225cc18184ebcefd2b4b23e79ba08f1c531bfacfd88428eaa39337
90 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is designed to lure users to a harmful website. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific 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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BB%D0%B0%D1%83%D0%BD%D1%87%D0%B5%D1%80+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+152+%D1%81+%D0%BC%D0%BE%D0%B4%D0%B0%D0%BC%D0%B8+%D0%B8+%D1%81+%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80%D0%B0%D0%BC%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183245_derevyannuyy_dom_proekt.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184419_godovaya_kontrolnaya_rabota_po_biologii_8_klass_s_otvetami.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184692_skachat_igru_vokrug_sveta_za_80_dney_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024816.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24816 3556 bytes
font_01_sfnt_off00025599.bin
8f15b827d7ac3c39f7271cc7bfb6fb0ab4904eda952cf10c05bc3d3650aeca0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25599 14580 bytes
font_02_sfnt_off00028326.bin
d09923cbdc305950305c98b16fd731505617ef87fa48d967c0f3dc823af7b848		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28326 14640 bytes
font_03_sfnt_off0002ae59.bin
752b5e542742a7fee6d5d48d22ca29f6aec9d15cdc36a819e05f4b697af23253		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE59 7148 bytes
font_04_sfnt_off0002c355.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C355 6084 bytes
font_05_sfnt_off0002d2ea.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2EA 3752 bytes

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