Malicious PDF — malware analysis report

Static analysis result for SHA-256 5958d67f476b75a5…

MALICIOUS

PDF

187.7 KB Created: 2015-08-08 10:52:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: edb3dbfe7bba638d9a6cc3fe336ac73a SHA-1: 43c49711d567cd103f0633097a783675991e861b SHA-256: 5958d67f476b75a534edb26f5a51faffc1340a08cdf968adc23fb2143fd6f437
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 malicious website. 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=%D0%B3%D0%BE%D0%BB%D0%BE%D0%B4%D0%BD%D1%8B%D0%B5+%D0%B8%D0%B3%D1%80%D1%8B+%D0%B8+%D0%B2%D1%81%D0%BF%D1%8B%D1%85%D0%BD%D0%B5%D1%82+%D0%BF%D0%BB%D0%B0%D0%BC%D1%8F+%D0%B0%D1%83%D0%B4%D0%B8%D0%BE%D0%BA%D0%BD%D0%B8%D0%B3%D0%B0+%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://img1.liveinternet.ru/images/attach/c/6//4385/4385321_kak_dostat_soseda_kanikuluy_oligarha_klyuch.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384152_muzuykalnuye_otkruytki_s_dnem_rozhdeniya_besplatno_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384603_skachat_besplatno_porno_mp3.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024abb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24ABB 3556 bytes
font_01_sfnt_off0002583e.bin
a61c09e2aa21703b1fe5362a6760e3dc98713b236c64621b24a9a54112409544		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2583E 14520 bytes
font_02_sfnt_off000285a7.bin
858de1ea0edee6589051d6c5805376be02fce034b392ea3476abe13984ffa707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285A7 14532 bytes
font_03_sfnt_off0002b094.bin
8388197ccffe0087945ccb67d8966f1d29700bd62189431a72c88d590dd3f4e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B094 6992 bytes
font_04_sfnt_off0002c4d6.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4D6 6084 bytes
font_05_sfnt_off0002d46b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D46B 3752 bytes

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