Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f33742e12b3ad9e…

MALICIOUS

PDF

184.8 KB Created: 2015-07-23 21:22:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b436332f4e8e9d1f65f323a2a1abf840 SHA-1: 24321ee0fb55188fbcfa31f08256a4e53675a905 SHA-256: 7f33742e12b3ad9e9f63128b2024e4b1b1ce6c1ebbdec5eebca6fc6b2265c04a
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as malicious infrastructure. This suggests the document's primary purpose is to redirect users to a harmful website.

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%BA%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D0%B3%D1%82%D0%B0+%D0%B2%D0%B0%D0%B9+%D1%81%D0%B8%D1%82%D0%B8+%D0%BD%D0%B0+%D0%BF%D0%B8%D0%B8%D1%81%D0%BF%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184822_kod_aktivacii_dlya_kaspersky_internet_security_2015_na_365_dney.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184521_skachat_minecraft_pe_0_8_1_na_android_igruy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184793_anketa_na_shengenskuyu_vizu_v_finlyandiyu.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002414a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2414A 3556 bytes
font_01_sfnt_off00024ecd.bin
cde867d58d117d766ba7885abf149217d7b9ff4761c91db0423cc680c43cd29b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24ECD 14892 bytes
font_02_sfnt_off00027ce9.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CE9 14468 bytes
font_03_sfnt_off0002a79c.bin
4e446dda5f65f021e1d460b98827fb88b263a8262c9cd3a80df997bd421b5785		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A79C 6288 bytes
font_04_sfnt_off0002b939.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B939 6084 bytes
font_05_sfnt_off0002c8ce.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8CE 3752 bytes

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