Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c6240ca888d920f…

MALICIOUS

PDF

186.8 KB Created: 2015-07-26 17:02:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2270e97bcc41f679ecc4c8e651456069 SHA-1: c61842cdaa443fb8ee9504d126f183afcdce8a78 SHA-256: 1c6240ca888d920fd81531e68380c7a33043bb42de39d72ea1708da268d190bc
92 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates an attempt to lure the user to a potentially harmful website, likely for phishing or to download further malware. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the embedded URL is sufficient evidence for the attack pattern.

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+flash+player+%D0%BF%D0%BE%D1%81%D0%BB%D0%B5%D0%B4%D0%BD%D0%B5%D0%B9+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D0%B8+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4206/4206369_test_drive_unlimited_2_dlc_explo_v017_build_7_treyner.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191929_prilozhenie_moy_zdorovuyy_racion_versiya_30_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185155_microsoft_office_publisher_2007_skachat_besplatno_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ab1b.bin
33e1a369d3141a8bcb3a98ee1905127783a7fd6d7bd8d5680e5761767b61c400		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AB1B 7616 bytes
font_00_sfnt_off000243a9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243A9 3556 bytes
font_01_sfnt_off0002512c.bin
65d56130f55f54f9e4ec7f99fae13ed705302cc84f6e7bb391273f3276911534		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2512C 15256 bytes
font_02_sfnt_off00027ff4.bin
5afc6b8f443e294548d524d0acb59aecb4dca813e5d538c24861c31c92e15a5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FF4 14664 bytes
font_04_sfnt_off0002c18f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C18F 6084 bytes
font_05_sfnt_off0002d124.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D124 3752 bytes

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