Malicious PDF — malware analysis report

Static analysis result for SHA-256 033a508e08d5797b…

MALICIOUS

PDF

359.4 KB Created: 2015-08-19 16:16:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2982ac18526d580ffc82b5631f030403 SHA-1: e0b6e051939bcde9b04f3137e78922b4d77e38fe SHA-256: 033a508e08d5797bdcbd4f4a2a523444d38e4be902e6b67044ebcf7348b75a5c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link that is flagged as a known malicious redirector. The ML classifier also strongly indicates maliciousness. While no scripts were extracted, the presence of a malicious URL 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 0.9980

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B2%D0%B7%D0%BB%D0%BE%D0%BC%D0%B0%D0%BD%D0%BD%D1%8B%D0%B9+%D0%B1%D0%BE%D0%B9+%D1%81+%D1%82%D0%B5%D0%BD%D1%8C%D1%8E+2&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627013_dyen_braun_inferno_skachat_besplatno_fb2_na_russkom_yazuyke.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627014_propisi_dlya_detey_5_6_let_raspechatat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627599_skachat_programmu_vay_fay_na_noutbuk_besplatno.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055996.bin
81bce45a53aa4f99a0c7f6905f032a0273a207158baefe429182ce45197ab596		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55996 8584 bytes
font_01_sfnt_off0005726b.bin
393725dae9965aaf808c537e891a3333c62512ecf9aeb94c760fda5ecc0a0020		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5726B 13736 bytes

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