Malicious PDF — malware analysis report

Static analysis result for SHA-256 50b59bf057d78b6e…

MALICIOUS

PDF

368.1 KB Created: 2015-08-19 16:41:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: cf7d4647276d22499bc3b95bfd9b5ab9 SHA-1: b41279365b5e17e12fb19f74bbeea80df9420fad SHA-256: 50b59bf057d78b6ea5e8e53f85031c398f44a8086ee4fea19a49b16fc7d1b943
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The embedded URL 'http://botcraftman.ru/...' is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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%94%D0%BD%D0%B5%D0%B2%D0%BD%D0%B8%D0%BA+%D0%BE%D1%82%D1%87%D0%B5%D1%82+%D0%BF%D0%BE+%D0%BF%D1%80%D0%BE%D0%B8%D0%B7%D0%B2%D0%BE%D0%B4%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE%D0%B9+%D0%BF%D1%80%D0%B0%D0%BA%D1%82%D0%B8%D0%BA%D0%B5+%D0%B0%D0%B2%D1%82%D0%BE%D0%BC%D0%B5%D1%85%D0%B0%D0%BD%D0%B8%D0%BA%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626721_registracionnuye_klyuchi_dlya_easy_drive_data_recovery.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626689_prikaz_o_naznachenii_komissii_dlya_spisaniya_tmc.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626678_katriona_4_voshod_chernoy_zvezduy_skachat_fb2.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057be3.bin
bc8f5504b471f327d916c6be9b2279df2a8b19620b34bd2cc208f4b5b42d58fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57BE3 8496 bytes
font_01_sfnt_off00059494.bin
ecac3ff767e88c7a5a3a732299de64a202583b0322523fcc0a08b247bab1924a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59494 14548 bytes

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