Malicious PDF — malware analysis report

Static analysis result for SHA-256 354f4b703f6ae407…

MALICIOUS

PDF

187.0 KB Created: 2015-08-08 10:53:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ae3363bd76504302026a36debdaf55cf SHA-1: 27730e72d30e466c6452b1ffb2442d0fc090c847 SHA-256: 354f4b703f6ae407411b489cf789650ef28a59b32274c8be2e431ffa2a98e0cb
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 link to a known malicious redirector infrastructure. This indicates the document is likely a lure to direct users to a malicious website for phishing or malware delivery. No scripts were extracted from this sample.

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%B2%D0%B5%D0%BB%D0%B8%D0%BA%D0%BE%D0%BB%D0%B5%D0%BF%D0%BD%D1%8B%D0%B9+%D0%B2%D0%B5%D0%BA+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+4+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385965_photoshop_cs6_skachat_besplatno_russkaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385509_yeroticheskie_zhivuye_oboi_dlya_android_2_2.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385137_nastya_chernobrovina_zasvetuy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000248bb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248BB 3556 bytes
font_01_sfnt_off0002563e.bin
f1c01909a6a1440ecf1d4d73eb57442b363a176d8935d9dab9bc7ff1d002f570		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2563E 15160 bytes
font_02_sfnt_off000284bc.bin
6d2ff7460a378a2b33e572d578ad414e99ad70aa55da31bd508cfbf287024bf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x284BC 14680 bytes
font_03_sfnt_off0002af87.bin
5a94279b52b4f2ac4eb258b65281c652df8a0ebe5c95039b8e24ec9c20777416		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF87 6588 bytes
font_04_sfnt_off0002c231.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C231 6084 bytes
font_05_sfnt_off0002d1c6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1C6 3752 bytes

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