Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a5a3d725a28da5…

MALICIOUS

PDF

185.0 KB Created: 2015-07-25 02:17:43 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bbc5e84cfc290f7af4c8858c2b549bcd SHA-1: 983e7bb5f6b3f00c3b7b248af922dcf88f05f54f SHA-256: f7a5a3d725a28da5328f1c7c8a32b9a6d1901c390c5a624c0ca1ad2e4770dd30
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a harmful site.

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=One+page+checkout+virtuemart+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196484_anketa_dlya_pokupateley_produktovogo_magazina.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184980_finereader_80_kod_aktivacii.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187647_ustav_yuridicheskoy_firmuy_obrazec.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e77.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E77 3556 bytes
font_01_sfnt_off00024bfa.bin
473d7bb0b71bac6646a581dba1ab92bf2671517b009300b48e0592f5e311e5fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BFA 14656 bytes
font_02_sfnt_off000278eb.bin
165c5b63b213ad726f82bea4fa91c186fc1bb25ea3fc8eb9953ac972605485a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x278EB 15060 bytes
font_03_sfnt_off0002a4cb.bin
d080747d66fb9deb9f11822def53739bb7355edb58b6b5272c0daaafe6928f25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A4CB 7280 bytes
font_04_sfnt_off0002ba0b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA0B 6084 bytes
font_05_sfnt_off0002c9a0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9A0 3752 bytes

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