Malicious PDF — malware analysis report

Static analysis result for SHA-256 689e1b8440341056…

MALICIOUS

PDF

186.8 KB Created: 2015-07-24 23:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c5dfa998b0e2b9e8e6c3395c228623d1 SHA-1: 094ff28bb028b575b913530c8f51840a5cd062e8 SHA-256: 689e1b844034105604eb11de762f6847bd1715336cd0aee2da29a6a2c6e660bf
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely part of a phishing or malware distribution chain. No scripts were extracted, but the presence of the malicious link strongly suggests an attempt to lure the user 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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%BB%D0%B8%D0%B5%D0%BD%D1%82+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+152+%D1%81+%D0%BC%D0%BE%D0%B4%D0%BE%D0%BC+terrafirmacraft&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188124_skachat_mod_taumkraft_3_dlya_maynkraft_152.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192422_instrukciya_31_po_obespecheniyu_rezhima_sekretnosti_v_rf.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193170_viber_na_nokia_s_6_01.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_off00024265.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24265 3556 bytes
font_01_sfnt_off00024fe8.bin
74b578684abd4938e372fd393f336219c851d3c0ca18cdf69145b615b3976291		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FE8 14916 bytes
font_02_sfnt_off00027e24.bin
8ce08aca655d1d7cf24bfad132774abad0f81e6add95c5d553583d2dfc436a28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E24 15020 bytes
font_03_sfnt_off0002aa83.bin
94d289695d1b20e9f8e38898008e2efeb95d69748337ec7ae4d9d400d712dbbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA83 7736 bytes
font_04_sfnt_off0002c16b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C16B 6084 bytes
font_05_sfnt_off0002d100.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D100 3752 bytes

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