Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9e16cd202365b56…

MALICIOUS

PDF

188.4 KB Created: 2015-07-24 19:42:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 032ef3b913294ac0f28643cde80bb718 SHA-1: 2dad9c4142a25251d76927ef59b139498ad46ff2 SHA-256: a9e16cd202365b56e30481f1b47ad35b7bf05306c777c4cbf4c8f96debbd34c6
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely a lure to direct users to a malicious website for phishing or malware delivery. No scripts were extracted, and the document body was not readable.

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=%D1%84%D0%BE%D0%BC%D0%B5%D0%BD%D0%BA%D0%BE+%D0%B8+%D0%BD%D0%BE%D1%81%D0%BE%D0%B2%D1%81%D0%BA%D0%B8%D0%B9+%D0%BD%D0%BE%D0%B2%D0%B0%D1%8F+%D1%85%D1%80%D0%BE%D0%BD%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184351_samouchitel_excel_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192825_kristofer_ishervud_odinokiy_muzhchina_kniga_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189464_skachat_blocklauncher_pro_na_081_na_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024de5.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DE5 3556 bytes
font_01_sfnt_off00025b68.bin
221696514279ec7ce6094e96aa7f62af17bf9d2929a06ec21f2f04f937d2d050		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25B68 14608 bytes
font_02_sfnt_off000288dd.bin
858de1ea0edee6589051d6c5805376be02fce034b392ea3476abe13984ffa707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x288DD 14532 bytes
font_03_sfnt_off0002b3ca.bin
968dbde59ea60fcd0e1156ba929e890dc4dfc6c7faac1a1d7e1fcbb29a09bcd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3CA 6968 bytes
font_04_sfnt_off0002c7f2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7F2 6084 bytes
font_05_sfnt_off0002d787.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D787 3752 bytes

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