Malicious PDF — malware analysis report

Static analysis result for SHA-256 171fcf115807bb65…

MALICIOUS

PDF

185.3 KB Created: 2015-07-27 09:52:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 111672e214d2a6dc255fd02fbf00a4a4 SHA-1: 8825cd0a6cf4727d66d268f0f48b200d6f35a0e4 SHA-256: 171fcf115807bb657d69141545e41983c0446d990e3f55a63e615e42101ae623
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link to a known malicious redirector, botcraftman.ru, which is flagged by heuristics. The ML classifier also strongly indicates maliciousness. The embedded URL is likely intended to redirect the user to a malicious site, potentially for phishing or malware distribution.

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%BD%D0%BE%D0%B2%D1%8B%D0%B9+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC+megadeth+2015&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4226/4226278_devochka_sosala_u_malchika.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4210/4210331_skidrow_dll_far_cry_3.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4220/4220211_proshivka_dlya_plansheta_prestigio_multipad.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ee9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x23EE9 3556 bytes
font_01_sfnt_off00024c6c.bin
d939039e0ff8e17c267d564e926cc6f6976a6ba3556b57c4d4c4c5ff715c47b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x24C6C 14624 bytes
font_02_sfnt_off000279a1.bin
a0e1fff948548f2f0864a01f8eb0a047457fbd95034648a20e4ce3850907cb9a
pdf-font-stream PDF embedded font (sfnt) at offset 0x279A1 15020 bytes
font_03_sfnt_off0002a5d5.bin
50a2058645ff5234d171a90930a77422d53fcfa7e3a0f2fe338d33a498d64291
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5D5 7412 bytes
font_04_sfnt_off0002bb90.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB90 6084 bytes
font_05_sfnt_off0002cb25.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB25 3752 bytes