Malicious PDF — malware analysis report

Static analysis result for SHA-256 982a77798cd60e06…

MALICIOUS

PDF

183.4 KB Created: 2015-07-24 08:12:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cd85e9d55cc4d90c81d169036b2f7eb0 SHA-1: 1156e17083e5a84100f7ce913b846775d07725dc SHA-256: 982a77798cd60e066d531601eb5715469f2717de4223dc883606fe2db39c51bd
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 http://botcraftman.ru/?lip&keyword=%D0%9C%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+%D0%B1%D0%B5%D0%BD%D0%B4%D0%B5%D1%80+%D1%87%D0%B0%D1%82&charset=utf-8. This suggests the document is designed to lure users to a malicious website. No scripts were extracted from this sample.

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%9C%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+%D0%B1%D0%B5%D0%BD%D0%B4%D0%B5%D1%80+%D1%87%D0%B0%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183256_shema_podklyucheniya_gerkona.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185530_perevodnuye_yekzamenuy_v_7_klasse_po_matematike_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186183_navitel_750200_dlya_android_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023c1b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C1B 3556 bytes
font_01_sfnt_off0002499e.bin
824776cf06dcb596d9f895f3be1b17fd2c52e07d89061a20e225dd17c5254e16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2499E 14372 bytes
font_02_sfnt_off0002770d.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2770D 14468 bytes
font_03_sfnt_off0002a1bf.bin
7f0f12406195563e826735cc67684137bc908f9b5e67c5897432332c4300a9e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A1BF 6348 bytes
font_04_sfnt_off0002b3b3.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3B3 6084 bytes
font_05_sfnt_off0002c348.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C348 3752 bytes

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