Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ba6545ec5e33c08…

MALICIOUS

PDF

186.1 KB Created: 2015-07-24 09:05:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 8888f1ca1081d7235a02af7449bb5db7 SHA-1: 8ea6a393a2f6f933e2d8044e61faca4517074764 SHA-256: 6ba6545ec5e33c08b0f12bea7e06e39cc1e687ed14e3ed5d091cb7efc65ddbc3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution. No scripts were extracted, but the presence of the malicious URL is a strong indicator of malicious intent.

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%A2%D0%B5%D0%BA%D1%81%D1%82%D1%8B+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BF%D0%B8%D1%81%D1%8B%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+1+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BF%D0%BE+%D1%84%D0%B3%D0%BE%D1%81+%D1%88%D0%BA%D0%BE%D0%BB%D0%B0+%D1%80%D0%BE%D1%81%D1%81%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185523_skachat_igru_russkaya_ruybalka_3_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186053_rannie_sroki_beremennosti_radzinskiy_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189373_igruy_barbi_pokaz_mod_2_skachat_besplatno_na_kompyuter.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024581.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24581 3556 bytes
font_01_sfnt_off00025304.bin
13d049c19d8fbc425bad963988a056301c6aeec60b2e8a0edabd65efd87bbb97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25304 14324 bytes
font_02_sfnt_off00027ffc.bin
d9775475238cab7937fa4e35d65fbe93a357e8a9e242d68b4cc886ecd1dec298		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FFC 14520 bytes
font_03_sfnt_off0002aacb.bin
d3605eff743b4780102423fb491304ac7de70e8818240d5dc31946d58d08793c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AACB 6872 bytes
font_04_sfnt_off0002be9b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE9B 6084 bytes
font_05_sfnt_off0002ce30.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE30 3752 bytes

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