Malicious PDF — malware analysis report

Static analysis result for SHA-256 57b70f35ab9d551d…

MALICIOUS

PDF

392.7 KB Created: 2015-08-29 01:37:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-09-18
MD5: ac3e46c6e574d7c0506a6df759f68969 SHA-1: 06195e5d03708feb57c002b1c1b31ddc39659002 SHA-256: 57b70f35ab9d551d718c2135485efb1f2c8e9429a4ebf495949f99450d394815
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%B3%D0%B4%D0%B7+%D0%BF%D0%BE+%D0%B0%D0%BB%D0%B3%D0%B5%D0%B1%D1%80%D0%B5+8+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BC%D0%BE%D1%80%D0%B4%D0%BA%D0%BE%D0%B2%D0%B8%D1%87+2006+%D0%B3%D0%BE%D0%B4&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818374_skachat__pesni__gruppuy_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817710_skachat__skript__dlya_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818396_krayzes__2__skachat_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005dd20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD20 8432 bytes
SHA-256: 2da91b34be448b39cb5d5c58c049347e9b05c616934d0bc4f5a40d2835c09f08
font_01_sfnt_off0005f604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F604 14164 bytes
SHA-256: 217dd4b4b5c736bd6da0c6db1bc71ad983df28a053232286e03ed2ae7b49fc0e

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