Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e9da386965086c6…

MALICIOUS

PDF

185.4 KB Created: 2015-07-25 16:00:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4f1533b022c105b8a6fa2a0cad6226b3 SHA-1: 123d7c23dd42b63c3261f06fdbab892fc3072b0e SHA-256: 5e9da386965086c6a8fabd08222ecd7666d2f966724b44d7c489235641735e7e
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 a known malicious redirector. While no scripts were extracted, the presence of this malicious link strongly suggests an attempt to lure the user to a harmful site, likely for phishing or malware delivery.

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%9A%D0%BB%D1%8E%D1%87%D0%B8+%D0%B4%D0%BB%D1%8F+mipko+personal+monitor&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203022_snip_22381_stalnuye_konstrukcii_skachat_pdf.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198863_my_little_pony_in_the_sims_skachat_igru.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4204/4204980_skachat_aktivator_dlya_windows_8_release_preview_build_8400.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a7ae.bin
8051040b8e8a1c480b617c51da65ef3cb3b3ccb023ebb8c83cf0ddcd36b3fc54
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A7AE 6948 bytes
font_00_sfnt_off00023f8a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x23F8A 3556 bytes
font_01_sfnt_off00024d0d.bin
3ab956425edefb907325cb4ed8528689f5a05090d7c62685a9d7f6c179ec16fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x24D0D 15232 bytes
font_02_sfnt_off00027c22.bin
d5169875b9caba761994e5c49931d0e983170493105dc39513931ec80f84c35b
pdf-font-stream PDF embedded font (sfnt) at offset 0x27C22 14744 bytes
font_04_sfnt_off0002bbc3.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBC3 6084 bytes
font_05_sfnt_off0002cb58.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB58 3752 bytes