Malicious PDF — malware analysis report

Static analysis result for SHA-256 040558fe685a30d7…

MALICIOUS

PDF

183.8 KB Created: 2015-08-06 11:36:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cf13554908caf83e189278b24d38c075 SHA-1: 125b3aec66fbea2484354b0e312bdec3393522d3 SHA-256: 040558fe685a30d7e961674e9ff9964986ca40e356ca6a357d657faba4b232b4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely part of a phishing or malware distribution scheme. No scripts were extracted, and the document body was truncated, limiting further analysis of the immediate intent beyond the malicious link.

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%BD%D0%B0+%D0%BF%D0%BA+%D0%BF%D0%BE%D1%80%D0%BD%D0%BE+%D0%B8%D0%B3%D1%80%D1%83&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305288_aleksin_buslayn_raspisanie.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305665_trudovoy_dogovor_s_gruzchikom.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305553_vneshnie_pechatnuye_formuy_dlya_1s_82_skachat_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_off00023fb2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FB2 3556 bytes
font_01_sfnt_off00024d35.bin
52dc9965b176ced2ef1eb325f43aaf72f5f607805c9b604481a744285db6a792		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D35 13924 bytes
font_02_sfnt_off00027936.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27936 14468 bytes
font_03_sfnt_off0002a3e8.bin
967477a932b7ea699d2a7dd34a50c0490b8a290b3c7ddca1c8de4509ced98fe7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A3E8 6152 bytes
font_04_sfnt_off0002b537.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B537 6084 bytes
font_05_sfnt_off0002c4cc.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4CC 3752 bytes

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