Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0792c79ddda2997…

MALICIOUS

PDF

186.2 KB Created: 2015-07-25 19:18:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1ea06f0aafea0a9a996827fed0664e76 SHA-1: b1fe86dcd2805f14cf5dd48bcd3e73ee8b9a0e11 SHA-256: c0792c79ddda299783a98185a9589aedc2329b3f32ca7da7be426ee344dc12cc
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a malicious redirector link and a high ML score. The embedded URL points to botcraftman.ru, which is identified as malicious infrastructure. The ClamAV detection as Pdf.Dropper.Agent-7540131-0 further supports its malicious nature. The document likely serves as a lure to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7540131-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7540131-0
  • 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+%D0%B1%D1%83%D0%BC%D0%B5%D1%80+%D0%B2%D1%81%D0%B5+%D0%BF%D0%B5%D1%81%D0%BD%D0%B8+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202842_shablon_novaya_forma_sudebnuyh_pristavov_fotoshop.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200567_vuyplatuy_po_programme_pereseleniya_sootechestvennikov.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192222_goluye_maloletki_chastnoe_foto.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000244d2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x244D2 3556 bytes
font_01_sfnt_off00025255.bin
591f5d45a3e4d208f792a70106a9f3a13b89b80de5fe0cdca2d1aaefd99d6448		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25255 14700 bytes
font_02_sfnt_off00028076.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28076 14468 bytes
font_03_sfnt_off0002ab28.bin
ac7ef148256bc117e61474ec4b77222d960a99803b01b74703c617f185e4ce53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB28 6844 bytes
font_04_sfnt_off0002bef4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEF4 6084 bytes
font_05_sfnt_off0002ce89.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE89 3752 bytes

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