Malicious PDF — malware analysis report

Static analysis result for SHA-256 14dab86b9cc9c6f1…

MALICIOUS

PDF

185.7 KB Created: 2015-08-05 13:57:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 75b05d0051f1a12837b6da9c02878bcf SHA-1: 5ee368a5bd81e19b95714eaba53e2e3230ba9692 SHA-256: 14dab86b9cc9c6f1ecebeb39abad3c64df026f5c4a060b9792897d102d6f4f0b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, http://botcraftman.ru/, which is designed to lead users to harmful content. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the presence of a malicious URL strongly suggests an attempt to deliver a second-stage payload or initiate a phishing attack.

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%B8%D0%B2%D0%B0%D0%BB%D1%8C%D0%B4%D0%B8+%D0%B2%D1%80%D0%B5%D0%BC%D0%B5%D0%BD%D0%B0+%D0%B3%D0%BE%D0%B4%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304739_doma_iz_pestovo_pod_klyuch.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304540_yuriy_sigov_singapur_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304639_chit_koduy_na_sabvey_serf_na_kompyuter.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_off00024286.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x24286 3556 bytes
font_01_sfnt_off00025009.bin
c36cf6d48c8bf2ffeb9ea238e1912af30efe417a56ba25318a4390268f7d76f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x25009 14956 bytes
font_02_sfnt_off00027f1c.bin
b1e1cc546f0f1eacb0fa825f4ffec9a121aa6720056131ecd420011035d35d0d
pdf-font-stream PDF embedded font (sfnt) at offset 0x27F1C 14680 bytes
font_03_sfnt_off0002a9e2.bin
9385e7e6ff66535ebe3d01d9143ed0f7d931ef0055ee7648c042446a8ce4f19b
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9E2 6672 bytes
font_04_sfnt_off0002bcfc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCFC 6084 bytes
font_05_sfnt_off0002cc91.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC91 3752 bytes