Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a7bd80419eafa4d…

MALICIOUS

PDF

187.5 KB Created: 2015-08-05 22:20:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b552e6452980c69e0fc68ec8c75b05fa SHA-1: 11f265e17af86b9145c1aa7252b59d4fa70de9d0 SHA-256: 6a7bd80419eafa4d5989d10f655325266c39c3a3ac0757d299921d2c35a8090e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. The embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%81%D0%B8%D0%BD%D1%85%D1%80%D0%BE%D0%BD%D0%B8%D0%B7%D0%B0%D1%86%D0%B8%D0%B8+%D0%BA%D0%B8%D1%82%D0%B0%D0%B9%D1%81%D0%BA%D0%B8%D1%85+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD%D0%BE%D0%B2+%D1%81+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4308/4308028_skachat_igru_gubka_bob_kvadratnuye_shtanuy_korona_neptuna.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305141_sekretuy_igruy_bitva_zamkov_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306186_skachat_drayver_na_printer_laserjet_m1132_mfp.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024913.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24913 3556 bytes
font_01_sfnt_off00025696.bin
41f86745b03a14587f1bea044e0278398b51c0ef4cb215414d2218be2fd1225f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25696 14460 bytes
font_02_sfnt_off00028411.bin
5a12e74faa5e16257cd40052291f8737439fc6e9d57ef9602a41228bca6bbdb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28411 14532 bytes
font_03_sfnt_off0002aefe.bin
b5fc1e0915f9c12060b6b1f5f367a72511dd18be1b88a51c40cec05025c1853c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AEFE 7320 bytes
font_04_sfnt_off0002c451.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C451 6084 bytes
font_05_sfnt_off0002d3e6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D3E6 3752 bytes

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