Malicious PDF — malware analysis report

Static analysis result for SHA-256 044d5c9fe33ea262…

MALICIOUS

PDF

185.7 KB Created: 2015-07-25 23:00:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 178945b2cd7c149308ab743b0804b678 SHA-1: 2eb9a0b1e32bc43be97f79c786b9148735f860f1 SHA-256: 044d5c9fe33ea262d85269168ffcb6852735230361ea9551c38da586b3d2f755
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The embedded URL `http://botcraftman.ru/...` is identified as a malicious redirector, suggesting the document's purpose is to lure users to a harmful site. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact payload.

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+windows+8+ultimate+64+bit+%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//4184/4184672_epochta_mailer_skachat_besplatno_c_klyuchom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202494_zayavlenie_v_ifns_na_poluchenie_vuypiski_iz_egryul_obrazec.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4205/4205150_skachat_sims_3_cherez_torrentino_besplatno.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a65e.bin
1e9d455cb733028af6fa4f8a8dc2657c4734ab4123175b885c4463e594a46722		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A65E 7676 bytes
font_00_sfnt_off00023e60.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E60 3556 bytes
font_01_sfnt_off00024be3.bin
fa1f51ffdfaf523bfe9a5e2241d86ab5ab77eee755779cf4d4423843996876f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BE3 14996 bytes
font_02_sfnt_off00027a35.bin
25ea438cb466dba69ea91aabd1406465a7c10a8ec7f3d5a5e90f081eb4913974		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A35 14948 bytes
font_04_sfnt_off0002bd0d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD0D 6084 bytes
font_05_sfnt_off0002cca2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCA2 3752 bytes

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