Malicious PDF — malware analysis report

Static analysis result for SHA-256 572841d8edad0955…

MALICIOUS

PDF

186.2 KB Created: 2015-07-23 20:18:43 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ad94a0042cf063cca7ecf9a3c76b549e SHA-1: 35abb8206ae4cbafd347f73f92ff9e6a49c41801 SHA-256: 572841d8edad095558106da6654e0e1a8a343d49dd8bb641a482b6af082e2fb4
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 infrastructure. This suggests the document is designed to lure users to a harmful website, likely for phishing or malware distribution. No scripts were extracted, and the document body was not sufficiently readable to determine a 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=diablo+iii+reaper+of+souls+%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//4184/4184463_skachat_vk_na_android_kak_na_ayfone.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184361_skachat_maynkraft_152_na_russkom_yazuyke_na_kompyuter_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184378_algebra_7_klass_mordkovich_uchebnik_chitat_onlayn.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002aa37.bin
10babd0d25fb496991059704c16afc56e1244e4f8788b72f245f81e09be11005		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AA37 7180 bytes
font_00_sfnt_off000242b9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242B9 3556 bytes
font_01_sfnt_off0002503c.bin
22dee3e82cfac3bc30ec2ebfe11cacbf00031e6cf76aac1836dc627356d2b650		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2503C 14872 bytes
font_02_sfnt_off00027e6a.bin
916fde85d29c0513544fe42d9b03c382b3d473090560de8ec8b6576a05768ada		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E6A 14828 bytes
font_04_sfnt_off0002bf0c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF0C 6084 bytes
font_05_sfnt_off0002cea1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEA1 3752 bytes

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