Malicious PDF — malware analysis report

Static analysis result for SHA-256 37b3ff71f5c3d149…

MALICIOUS

PDF

361.3 KB Created: 2015-08-19 12:40:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 38e3cf2593f9ba5a6f1c08da6de306b5 SHA-1: fd292a7244b87b84b5b02360385308163e90b0b9 SHA-256: 37b3ff71f5c3d149d896ec5d0ed87fbe83b4cb94a9e0e6a3d65645bd16642632
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is identified as a malicious redirector. While no scripts were extracted, the presence of this malicious link strongly suggests an attempt to lure the user to a harmful destination, likely for phishing or malware delivery. The ML classifier also provided a high confidence score for maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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%B1%D0%BE%D0%BD%D1%83%D1%81+%D0%BA%D0%BE%D0%B4+%D0%BD%D0%B0+%D0%B8%D1%8E%D0%BD%D1%8C+2015+world+of+tanks&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496739_moguchie_reyndzheruy_yarost_dzhungley_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626486_kak_uznat_ocenku_po_gia_po_matematike_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496735_yekskursii_v_adlere_cenuy.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000559bf.bin
c9f0019c5c248eb6b2a8535d8651d76245845e6db9dad2a20cc0e4516b525eb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x559BF 10216 bytes
font_01_sfnt_off000576aa.bin
94281aea8df671cdc0f2dcc851e91824296462b1a13759641021a99988f5994b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x576AA 15048 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.