Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c580b3830463130…

MALICIOUS

PDF

185.9 KB Created: 2015-07-23 20:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b4c3aeb8a38cdb5ea1e5bb91a2adfd4e SHA-1: b2aceb6bc20236b1d5d906b34271a4315b4b847a SHA-256: 9c580b38304631308a7ab879d4ccb4678e628179dd1922a71870a0450c40229c
90 Risk Score

Malware Insights

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

The PDF contains an embedded URL that is flagged as a known malicious redirector. This indicates the document is likely intended to lure the user to a malicious site for phishing or malware delivery. The ML classifier also strongly flagged this PDF as malicious. 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%87%D0%B8%D1%82+%D0%BD%D0%B0+%D0%B2%D0%B0%D1%80%D1%84%D0%B5%D0%B9%D1%81+%D0%BD%D0%B0+%D0%B0%D0%B8%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184719_obrazec_zapolneniya_zayavleniya_na_zagranpasport.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184535_dina_rubina_belaya_golubka_kordovuy_skachat_besplatno_fb2.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184437_sims_4_skachat_na_android_besplatno_na_russkom.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002439b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2439B 3556 bytes
font_01_sfnt_off0002511e.bin
4f57560774f35fb0daef682988fb45d828a3e5a35648548e94a52eaf4c299c23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2511E 15004 bytes
font_02_sfnt_off00028037.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28037 14468 bytes
font_03_sfnt_off0002aae9.bin
76351fb578dc44e6e697917fd1d7d9feb4c70ca9aec3357c8893f027a8d9aa35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AAE9 6600 bytes
font_04_sfnt_off0002bdc4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDC4 6084 bytes
font_05_sfnt_off0002cd59.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD59 3752 bytes

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