Malicious PDF — malware analysis report

Static analysis result for SHA-256 20eb19bbaa91604b…

MALICIOUS

PDF

182.9 KB Created: 2015-07-25 09:49:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1db23cc46776387dd43b1b5e110506fe SHA-1: d551aa1b0bc7c9043b994c741817cbba5dfd25b5 SHA-256: 20eb19bbaa91604b106a209cdb530d380f76499e0c21b7716bb41d9feb825534
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 strongly indicated maliciousness. The primary IOC is the malicious redirector URL, which is likely used to funnel users to a more dangerous site. No scripts were extracted, and the document body was not parsable.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%87%D0%B8%D1%82+%D0%BD%D0%B0+rust&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185655_warcraft_3_frozen_throne_skachat_po_pryamoy_ssuylke.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184544_kak_oformit_soderzhanie_v_diplomnoy_rabote.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192400_komanda_na_komandnuyy_blok_v_maynkraft.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a076.bin
7504ae70f10b4f149e72019b9ef7514f5a0cfd53fe765a9295ef55427a746c36		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A076 6156 bytes
font_00_sfnt_off00023ab2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23AB2 3556 bytes
font_01_sfnt_off00024835.bin
d14594f895f7bcfa1c30b56709e6f8225bef5bc4aa1ccbb20784b499adf21a34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24835 14516 bytes
font_02_sfnt_off00027565.bin
9adf627c397667d7c9c329502ec59c4a233da5b64b04aae1aa1cfe238a804872		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27565 14576 bytes
font_04_sfnt_off0002b1bd.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B1BD 6084 bytes
font_05_sfnt_off0002c152.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C152 3752 bytes

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