Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f46f40ebda6d6b2…

MALICIOUS

PDF

363.3 KB Created: 2015-08-19 16:57:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-02
MD5: f43a83e8c4343103ddb672a151550f69 SHA-1: 81d1b633808cd262809c8c15843a19cb4d597c63 SHA-256: 0f46f40ebda6d6b2bbf5444bf1864e845f6605d68aa6233b0e77d1417e90e97b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of a malicious URL within the document body suggests an attempt to lure the user to a compromised site, likely for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+states+coders+group+%D0%BF%D0%BE+%D1%81%D0%BB%D0%B5%D0%B6%D0%B5%D0%BD%D0%B8%D1%8E&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627737_kak_zapolnit_dnevnik_proizvodstvennoy_praktiki_avtomehanika.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4628/4628351_multkoncert_chast_1_skachat_besplatno_cherez_torrent.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627564_shablonuy_vizitok_skachat_besplatno_dlya_word.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55C2D 10580 bytes
SHA-256: b70e7b47c412c2ab24a7fe7e4486f150df4ea838201acd2feb7dc6a9f56b2fd6
font_01_sfnt_off0005795b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5795B 17280 bytes
SHA-256: 6d98cd10257e4425e686ab3699d0d92cea8c0ec96e238a294f404ba5e558667e

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