Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3a11ade2f17544e…

MALICIOUS

PDF

186.9 KB Created: 2015-08-09 13:26:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e79798bee1ba973e58de37ef82a361d9 SHA-1: 9f48621b20038ba241165ed71be855e95de561a8 SHA-256: c3a11ade2f17544e590eb59c207ba6097c5730f5d4fef5a0bcfe3cd6eaeb1f24
92 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a malicious redirector link. The embedded URL 'http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D1%80%D0%B5%D0%B9%D0%BD%D0%B5%D1%80+%D0%B4%D0%BB%D1%8F+gta+san+andreas+super+cars&charset=utf-8' is the primary indicator of malicious intent. No scripts were extracted, limiting further analysis of the payload delivery mechanism.

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+%D1%82%D1%80%D0%B5%D0%B9%D0%BD%D0%B5%D1%80+%D0%B4%D0%BB%D1%8F+gta+san+andreas+super+cars&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4405/4405212_chit_koduy_na_gta_san_andreas_na_beskonechnuye_zhizni.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4390/4390256_skachat_kings_bounty_legenda_o_ruycare_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4409/4409973_faery_legends_of_avalon_chituy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ab68.bin
885d28ed8985ea447b6899feff95634e5ee9821acfc216ec6291de46d7f80c2f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AB68 7548 bytes
font_00_sfnt_off0002434a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2434A 3556 bytes
font_01_sfnt_off000250cd.bin
e66593e8eb4647fdd4dba6e64be5f8e6578d8e3943530d06f2da883a5b1b9916		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250CD 15412 bytes
font_02_sfnt_off0002805b.bin
a8bacc98c1f3d7c42f3fa5d52baf5f9372c507f8c310b336f9bf1143e1f00cd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2805B 14576 bytes
font_04_sfnt_off0002c19f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C19F 6084 bytes
font_05_sfnt_off0002d134.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D134 3752 bytes

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