Malicious PDF — malware analysis report

Static analysis result for SHA-256 584084cd3fbc1030…

MALICIOUS

PDF

185.3 KB Created: 2015-07-30 18:35:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bf0c82a668f309d867ad6748d37e1b88 SHA-1: 833c2d73a535f0be42bdd2f74a81d7b6d7e2d14f SHA-256: 584084cd3fbc103037f50433abf9a7f22bfd81f17afc2e4a7b413c7273c83b67
90 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, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of a malicious URL is sufficient to classify 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=%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%BF%D0%B5%D1%80%D0%B5%D0%B4%D0%B0%D1%87+%D0%BD%D0%B0+%D1%81%D0%B5%D0%B3%D0%BE%D0%B4%D0%BD%D1%8F+%D0%B2%D1%81%D0%B5+%D0%BA%D0%B0%D0%BD%D0%B0%D0%BB%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4219/4219800_skachat_gugl_hrom_poslednyaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197643_porno_multfilm_belosnezhka_i_sem_gnomov_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4238/4238943_muzuyka_dlya_yubileya_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243a1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243A1 3556 bytes
font_01_sfnt_off00025124.bin
c4f845f82aa5197258a1c937e26a4d33bf08a4cb1f2a685829f5d87180434d16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25124 14212 bytes
font_02_sfnt_off00027dc8.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DC8 14468 bytes
font_03_sfnt_off0002a87a.bin
2afdff2295d33c8986ac96feff15b3f5f9116db78b3f4480ab20a3d150a79d74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A87A 6676 bytes
font_04_sfnt_off0002bb99.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB99 6084 bytes
font_05_sfnt_off0002cb2e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB2E 3752 bytes

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