Malicious PDF — malware analysis report

Static analysis result for SHA-256 50bbd85780a9a334…

MALICIOUS

PDF

187.0 KB Created: 2015-08-08 09:52:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d264c1eb7138250b517bb280d0c3328f SHA-1: a5d0c3cfa388bdccb6c4facfdc4ea3d6f3648a0c SHA-256: 50bbd85780a9a334fa6a83e71d7f62ead0e178c901b90d63ab3c584efa6f95d4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates a likely attempt to trick the user into visiting a malicious site, which could lead to malware download or further compromise. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific 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=rise+of+nations+thrones+and+patriots+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384274_mustek_1200_ub_plus_drayver_windows_7_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384099_originalnaya_versiya_igruy_the_sims_3_skachat_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384574_skachat_albom_viti_matanga.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ac07.bin
e2c79bb2f6059a1ef2ac99bcaca7c843e201742211e338c03f1a5f3cbc78a8ca		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AC07 7632 bytes
font_00_sfnt_off00024487.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24487 3556 bytes
font_01_sfnt_off0002520a.bin
2ef712e7ec62dc1927627b787015a42939affd2b39c628b921dec4803cadb937		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2520A 14844 bytes
font_02_sfnt_off0002807c.bin
cf6079daddac7fa3afab80e5c8bbdc0d0537b29736479aa9a404235cc263e777		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2807C 14776 bytes
font_04_sfnt_off0002c25f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C25F 6084 bytes
font_05_sfnt_off0002d1f4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1F4 3752 bytes

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