Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5825b9b9ac2e28e…

MALICIOUS

PDF

182.7 KB Created: 2015-07-24 04:44:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b0291c6e7265623dea8e766bb842eece SHA-1: 856ac6d795e772bda6c7df0b3cdc04abbe89a9ac SHA-256: f5825b9b9ac2e28efee400088d8ca2fd29ad3e17aaccb3c08a45e172e9e028ea
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 direct link to a known malicious redirector. This indicates the document is designed to lure users to a harmful website. No scripts were extracted, and the document body was not sufficiently readable to provide further context on 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=m4r+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%80%D0%B8%D0%BD%D0%B3%D1%82%D0%BE%D0%BD&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186215_tureckie_pesni_skachat_besplatno_bez_registracii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188414_ne_nayden_neobhodimuyy_drayver_dlya_diskovoda_opticheskih_diskov.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187344_originsetup_9115109_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023a73.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23A73 3556 bytes
font_01_sfnt_off000247f6.bin
5cee8ea8afb930500e7136edcdf5e53e91bdaf3f03c765581e4fc76b1b0276d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247F6 14260 bytes
font_02_sfnt_off000274ad.bin
6ad9b1c40d206dff161cab727ef19673356160109b7761501a2ce5fa4fbc1e14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x274AD 14468 bytes
font_03_sfnt_off00029f5f.bin
e0ac67e2eba3916ec8df39a56a5327e44be9aaea76bd621d97bb05ce1cf77946		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29F5F 6244 bytes
font_04_sfnt_off0002b0fb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0FB 6084 bytes
font_05_sfnt_off0002c090.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C090 3752 bytes

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