Malicious PDF — malware analysis report

Static analysis result for SHA-256 d34688ebb13698c2…

MALICIOUS

PDF

185.8 KB Created: 2015-08-05 13:23:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bc400dd8c05f0e1f87749e5b2749bc33 SHA-1: 69d6172c7cce75dd116a110ba9f36566d887faf0 SHA-256: d34688ebb13698c2813c0d5bcc6e0b6ff84fbb397c93d4105a18d52387f755de
90 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 link to known malicious redirector infrastructure. The embedded URL http://botcraftman.ru/ is identified as a malicious redirector, suggesting the document's primary purpose is to lure users to a compromised site. No scripts were extracted, limiting further analysis of the 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=gta+san+andreas+russia+2015+%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/6//4304/4304470_skachat_icq_5_na_kompyuter_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304473_kod_aktivacii_dlya_fifa_13_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304429_vadim_panov_ohota_na_gornostaya_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a955.bin
6965786b5ef079a90699ea182404dc9ef8301ced6043cca8596c8f7eaf9ee6ad		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A955 6872 bytes
font_00_sfnt_off000241af.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241AF 3556 bytes
font_01_sfnt_off00024f32.bin
99ead92d6c10faf0e1dc18d1cfdf687907c0af9a1accbcba4db671692d438c15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F32 14848 bytes
font_02_sfnt_off00027d47.bin
01abc1acfb49fdaa4ab2bbf36ed2bdb982e8a6a0834c9cc47d12d644f6ecadf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D47 14904 bytes
font_04_sfnt_off0002bd41.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD41 6084 bytes
font_05_sfnt_off0002ccd6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCD6 3752 bytes

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