Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5c8d6027b83fde4…

MALICIOUS

PDF

187.7 KB Created: 2015-08-05 13:29:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 49078fb0ccd677d07acbe9e4272cfd64 SHA-1: 850e799ba2d0d37fb5403a88ded522f68ef00770 SHA-256: e5c8d6027b83fde45c7c2359e4ff6d9a327ae8bbd831df5c431bc37cd6021e86
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL http://botcraftman.ru/... is identified as malicious. While no scripts were extracted, the presence of this malicious link strongly suggests the document's purpose is to redirect users to a harmful site, likely for phishing or malware delivery. The authoring application 'wkhtmltopdf' is noted but does not directly contribute to the attack pattern.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D1%83%D0%BB%D1%8C%D1%82%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304507_programma_dostupnoe_zhile_moloduym_semyam.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304532_avtovokzal_tula_raspisanie_avtobusov.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304531_paper_artist_skachat_na_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002488d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2488D 3556 bytes
font_01_sfnt_off00025610.bin
dfdff507424c656e4ecde2d44c10ee45899e51fa6c53b5a97b21befb5feefe2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25610 15612 bytes
font_02_sfnt_off000285d6.bin
4ae165705ecc41720893a92c6e94e3ee89b3be36a12e4a920505046f59c61edc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285D6 14468 bytes
font_03_sfnt_off0002b084.bin
c35d5bec160afd605e837578a71cc4409dffc9de43f30662a0bab4e768c4d3e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B084 7064 bytes
font_04_sfnt_off0002c50c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C50C 6084 bytes
font_05_sfnt_off0002d4a1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4A1 3752 bytes

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