Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a7a35fe8d4f00ac…

MALICIOUS

PDF

184.8 KB Created: 2015-08-05 13:27:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 679e7a3d204994762fd6614008b67435 SHA-1: 97c57946fe2722a3a2b7bea996503299f1dd43d7 SHA-256: 5a7a35fe8d4f00ac61b28aa866f4fb46712b5b6463e63df413d32359f80633d6
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent. While no scripts were extracted, the presence of a malicious link suggests an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

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%BB%D0%B5%D1%81%D0%BD%D0%B0%D1%8F+%D0%B1%D1%80%D0%B0%D1%82%D0%B2%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%83&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304527_krasnouhaya_cherepaha_soderzhanie.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304454_skachat_igru_zhivaya_stal_na_kompyuter_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304526_skachat_kniga_po_remontu_uaz390995.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_off00023ed0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23ED0 3556 bytes
font_01_sfnt_off00024c53.bin
c69f2946e8e16d53eae781502ff669eff0e0c8c8cc3ea17c6610f9dd1987d8c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C53 15096 bytes
font_02_sfnt_off00027bc2.bin
174a748e656ecd6952924126d2026011874b923e4153d32e46ff3796b1239a0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BC2 14468 bytes
font_03_sfnt_off0002a673.bin
500fa0c166ba22f123e581c28e6615582c550b6082629a6722c963e27f927d05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A673 6636 bytes
font_04_sfnt_off0002b967.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B967 6084 bytes
font_05_sfnt_off0002c8fc.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8FC 3752 bytes

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