Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b1314b543097a06…

MALICIOUS

PDF

185.5 KB Created: 2015-08-08 11:33:25 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: abccf74945d6b8582057f2bdd620e967 SHA-1: 98a02370af958203586598c723702a868e2c6b81 SHA-256: 6b1314b543097a0635773b8d4a93af2db0f02f32a3c1307a10a53ca46803e6b7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious due to a critical heuristic firing for a link to known malicious redirector infrastructure. The embedded URL, http://botcraftcraftman.ru/..., is highly suspicious and likely leads to a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious link strongly suggests a social engineering attack, likely spearphishing via attachment, to lure users to a compromised site.

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%BE%D0%B1%D0%BE%D0%B8+%D1%80%D0%B0%D0%B1%D0%BE%D1%87%D0%B5%D0%B3%D0%BE+%D1%81%D1%82%D0%BE%D0%BB%D0%B0+%D0%B3%D0%BE%D0%BB%D1%8B%D0%B5+%D0%B4%D0%B5%D0%B2%D1%83%D1%88%D0%BA%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384755_hituy_80h_skachat_besplatno_bez_registracii.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384214_skachat_knigu_na_telefon_stalker_zov_pripyati.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385536_skachat_video_mem_shou_na_telefon.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_off0002427b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2427B 3556 bytes
font_01_sfnt_off00024ffe.bin
b97a5003887e76d8795701ba9467f96c87e798f313da89f68365358ae24f9a82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FFE 14508 bytes
font_02_sfnt_off00027dad.bin
8c5e5bc4674cee60ec6c1619e60533ff44be00efca6b5f228c587d2f19a61a12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DAD 14520 bytes
font_03_sfnt_off0002a87c.bin
52496d1627e639ed659e2506319aad84ab000c0ad03676928e6ab9343867af28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A87C 6808 bytes
font_04_sfnt_off0002bc20.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC20 6084 bytes
font_05_sfnt_off0002cbb5.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBB5 3752 bytes

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