Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e1b3178e37d9c17…

MALICIOUS

PDF

360.6 KB Created: 2015-08-20 08:31:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-12
MD5: b81e243c1ebc2bb367f7b2b067a37b58 SHA-1: 98b66e2aa05419743bd20517c6d596cd90e3f534 SHA-256: 6e1b3178e37d9c17a5834ad0d666b51e3dae8489404f77cd3d668f7dba0464e8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged the document as malicious. While no scripts were extracted, the presence of a malicious URL strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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%B7%D0%B2%D0%B5%D1%80%D1%8C+%D0%B4%D0%B2%D0%B4+2013+windows+7+%D0%BC%D0%B0%D0%BA%D1%81%D0%B8%D0%BC%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F+x64+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638831_koduy_na_rasteniya_protiv_zombi_na_monetuy_po_50000.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638929_skachat_programmu_mods_for_minecraft_pe_na_android.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639385_yel_shema_izh_yupiter_5_s_yelektronnuym_zazhiganiem.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000555ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x555FF 9488 bytes
SHA-256: 531f00e8746817c401ace2906265d4a373ffbd51973780872d7762674fd2f845
font_01_sfnt_off000571de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x571DE 15940 bytes
SHA-256: 3bbafec90d4481245b050548034681dc6c01ea0eed9c33ccc792b80a87b55667

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