Malicious PDF — malware analysis report

Static analysis result for SHA-256 571ff2de8428dc1b…

MALICIOUS

PDF

181.7 KB Created: 2015-08-08 09:49:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e1e1e8d737de547e272ed9e535c66a79 SHA-1: 349fa1968df10d2cfaab782aa80e0352328f38e3 SHA-256: 571ff2de8428dc1b567b11657679c4980439bf2c62ef96a5a364c8c6210c83bf
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a critical heuristic for containing a link to a known malicious redirector, http://botcraftman.ru/. This indicates the document's primary purpose is likely to lure users to a malicious website. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact lure.

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=gs+8306&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384396_progi_na_nokia_n8_besplatno_bez_registracii.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384201_videokarta_dh11_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383828_propisi_dlya_1_klassa_raspechatat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off00029c91.bin
40fc23c8fa8173bd50a240838f2b18582112bfd137f81c0b9aa1557ce3130021		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x29C91 5920 bytes
font_00_sfnt_off000237d0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x237D0 3556 bytes
font_01_sfnt_off00024553.bin
1f4a412073ebe730e24155d14a7e9e985065204e7317ba42b89bce94e7ae9153		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24553 14036 bytes
font_02_sfnt_off00027169.bin
df3835563da5c479d3b7890c9430f2a8021fdf4960ea456354222ee1f01d7fbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27169 14616 bytes
font_04_sfnt_off0002acdf.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACDF 6084 bytes
font_05_sfnt_off0002bc74.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC74 3752 bytes

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