Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdf94014a271c502…

MALICIOUS

PDF

376.7 KB Created: 2015-08-21 09:31:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 80294c6e294b6d9cbc0cd27509d7e1ad SHA-1: 6729b4dd9247e9999bf49b228393713d3a46a0a2 SHA-256: cdf94014a271c502c4c938c582e8d019d7fea5b3f05137dea1e7ef4e889d4e4d
68 Risk Score

Malware Insights

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

The PDF file contains an embedded JavaScript stream and a critical heuristic firing for a malicious redirector link. The link directs to http://botcraftman.ru/, which is identified as malicious infrastructure. This suggests the document is intended to redirect users to a phishing or malware distribution site. No specific family could be identified.

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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%BE%D0%B1%D0%BE%D0%B8+%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://img0.liveinternet.ru/images/attach/c/6//4654/4654765_buyt_neotrazimoy_bryedli_bei.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654922_skachat_vkontakte_na_telefon_samsung.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654815_rannie_sroki_beremennosti_radzinskiy_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059ba5.bin
b34846339c999b88ceb303b9bb97d40ffe9c5d149e4118c9422604e68135bdaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59BA5 8120 bytes
font_01_sfnt_off0005b33e.bin
e64f0ff84b2549d552dc6d187316d1e44d70b08c1f61d130c5aba98ce4fbf7c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B33E 15180 bytes

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