Malicious PDF — malware analysis report

Static analysis result for SHA-256 f280ef6b94889d24…

MALICIOUS

PDF

184.5 KB Created: 2015-07-26 00:40:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1260488705240a1d39525feb7fe1109f SHA-1: 827f3dd8dee8a50968d4ebd391556f2145e039aa SHA-256: f280ef6b94889d24ee19788d560ecf09fbb66c3f3baa65bb26192bf67147b3bd
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

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. This suggests the document is designed to lure users to a harmful website.

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%BF%D1%80%D0%B5%D0%B4%D1%82%D0%B5%D1%87%D0%B8+2+%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//4188/4188052_skachat_avtokad_besplatno_na_russkom.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189081_skachat_game_guardian_dlya_android_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4204/4204791_skachat_programmu_app_store_na_kompyuter.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240ff.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x240FF 3556 bytes
font_01_sfnt_off00024e82.bin
d67fecd9c4f9e4cf0245cce3776afa9e91eb4fd0418e0ce13bae28b2a0029ecb
pdf-font-stream PDF embedded font (sfnt) at offset 0x24E82 14528 bytes
font_02_sfnt_off00027b80.bin
1bdb34460530df544f3708516b9bff2a8899c1e4c5605cca86f0484fc167616c
pdf-font-stream PDF embedded font (sfnt) at offset 0x27B80 14468 bytes
font_03_sfnt_off0002a632.bin
32cedeaee974673bfbfdf687b63fce71cffd9bbb9d8a13e37f9532a00a13aaae
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A632 6320 bytes
font_04_sfnt_off0002b818.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2B818 6084 bytes
font_05_sfnt_off0002c7ad.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7AD 3752 bytes