Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a638845d78b2ece…

MALICIOUS

PDF

182.9 KB Created: 2015-08-08 13:16:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9d2cc170411f11b48fe93ec8195f9086 SHA-1: 6888fbf831fe60190d9e2e5b8ab051f7e35eee8b SHA-256: 1a638845d78b2ecec3f2421adc88e11ac8294815746fe0f7278217fe0755bb37
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 a known malicious redirector at http://botcraftman.ru/. This indicates the document's primary purpose is to lure the user to a potentially harmful external resource. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of the content's 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%BC%D0%B5%D0%BC%D1%8B+%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385142_pc_speed_up_klyuch.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384946_zeland_transerfing_realnosti_skachat_besplatno_fb2.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4392/4392067_tekstuy_pesen_save.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000239d6.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x239D6 3556 bytes
font_01_sfnt_off00024759.bin
70e0a2d54b73b0b0c966c0f2c5495a9641fced973c534e3ad325dff2c9d2b2fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24759 15032 bytes
font_02_sfnt_off000275e2.bin
d9775475238cab7937fa4e35d65fbe93a357e8a9e242d68b4cc886ecd1dec298		 pdf-font-stream PDF embedded font (sfnt) at offset 0x275E2 14520 bytes
font_03_sfnt_off0002a0b1.bin
75274d982e53bfe1e8602dfa0aa23c6e451a68480a223b7fa7e5a22b1a363d31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A0B1 6128 bytes
font_04_sfnt_off0002b1c7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B1C7 6084 bytes
font_05_sfnt_off0002c15c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C15C 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.