Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fbaef5bc69e3099…

MALICIOUS

PDF

184.4 KB Created: 2015-07-27 04:04:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f75f869358394e5813c23d4187861b11 SHA-1: d696db2a0c99a79d42d31fe625d411424a9d9828 SHA-256: 1fbaef5bc69e3099443ec2eb67e5f8fefd54f283357c78d7adf66732f43b6955
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector.

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%BB%D1%8D%D1%88+%D0%BF%D0%BB%D0%B5%D0%B5%D1%80+10+%D0%B4%D0%BB%D1%8F+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4206/4206185_skachat_euro_truck_simulator_2_148_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4213/4213842_opera_mini_besplatno_skachat_na_telefon.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189131_warhammer.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023dd0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DD0 3556 bytes
font_01_sfnt_off00024b53.bin
d68be5c1b244957404cb7f7ca1eaf763b0c93bdacf36ec0a12758b0e5232b087		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B53 15112 bytes
font_02_sfnt_off00027a5a.bin
364430bc7f7924acf0eb2f0535f3e3e17f02224cbaf165ce49e6bfb3d030d31b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A5A 14520 bytes
font_03_sfnt_off0002a52e.bin
81a0ec6364ef90e19d2c35d5217b239963df5ef7eefee45f55d5360161c382f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A52E 6468 bytes
font_04_sfnt_off0002b79a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B79A 6084 bytes
font_05_sfnt_off0002c72f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C72F 3752 bytes

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