Malicious PDF — malware analysis report

Static analysis result for SHA-256 5602972d8a569f46…

MALICIOUS

PDF

184.5 KB Created: 2015-08-08 11:35:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: de2ee5fc574d45e8a1e740902aeb4e7e SHA-1: 716e00111b3209093de1d3b26990f12a9c50c33b SHA-256: 5602972d8a569f46dfcec7722b1fcbb03469d2f7bf30446b92fe9460153d20b6
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, http://botcraftman.ru/, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution page. No scripts were extracted, limiting further analysis of the file's behavior.

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%A1%D0%B5%D1%80%D0%B8%D0%B9%D0%BD%D1%8B%D0%B9+%D0%BD%D0%BE%D0%BC%D0%B5%D1%80+%D0%B4%D0%BB%D1%8F+adobe+premiere+pro+cs55&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387910_za_vse_tebya_blagodaryu_1_sezon_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385283_kod_oshibki_2229.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387221_sbornik_russkogo_reggi.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a23c.bin
aca4ad900a92b5f595fec88fc85e100a83b20cff355557b65487ea26e646303c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A23C 7500 bytes
font_00_sfnt_off00023bf4.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23BF4 3556 bytes
font_01_sfnt_off00024977.bin
dde989fe9019a310bd39b48512ff4582c661477b7d3d8f33e4b427c00cbd095b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24977 14456 bytes
font_02_sfnt_off00027631.bin
fd5bc3987a524e2e55d7e7ea0d76d6dd718c5f40d946464162d6ac838665e402		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27631 14940 bytes
font_04_sfnt_off0002b821.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B821 6084 bytes
font_05_sfnt_off0002c7b6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7B6 3752 bytes

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