Malicious PDF — malware analysis report

Static analysis result for SHA-256 a531d774256ea735…

MALICIOUS

PDF

187.1 KB Created: 2015-07-29 12:32:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 658a84664e414a4fe57f3910ca7c918e SHA-1: 8fbb08717a01068cb96cb7eb0b677590d8e5f199 SHA-256: a531d774256ea7351b677d95e6484663e335abfb4c6360787807526914bb8478
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and contains a critical heuristic firing for a PDF redirector link. This link, http://botcraftman.ru/..., is likely intended to lead the user to a malicious website. No scripts were extracted from this sample, but the presence of the malicious URL is sufficient evidence of a phishing or redirection attack.

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8788750-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8788750-0
  • 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+%D0%B8%D0%B3%D1%80%D1%83+%D0%BA%D1%83%D0%BD%D0%B3+%D1%84%D1%83+%D0%BF%D0%B0%D0%BD%D0%B4%D0%B0+2+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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://img1.liveinternet.ru/images/attach/c/5//4241/4241925_skachat_besplatno_instrukciyu_polzovatelya_smartfona_jiayu_g3.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4242/4242417_kod_aktivacii_dlya_navitel_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4243/4243151_kniga_receptov_dlya_multivarki_filips_3039_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002485a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2485A 3556 bytes
font_01_sfnt_off000255dd.bin
5ad908e1993607b206f6a8d7d4922841540684f38a826ad1a1a3fd86a5a1b6f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x255DD 15116 bytes
font_02_sfnt_off0002849b.bin
1bdb34460530df544f3708516b9bff2a8899c1e4c5605cca86f0484fc167616c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2849B 14468 bytes
font_03_sfnt_off0002af4d.bin
24a45d56d4fe92bb2ed42f10eeb55b866c84851720bf7d65430302f3ec49143e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF4D 6724 bytes
font_04_sfnt_off0002c2b2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2B2 6084 bytes
font_05_sfnt_off0002d247.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D247 3752 bytes

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