Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2262f75f4cbfd3a…

MALICIOUS

PDF

105.6 KB Created: 2020-09-17 09:48:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0372161cf221a54c9152afcd9f9c7573 SHA-1: a3c4b2cdbecb09f27eecc7784f1c56b964126c57 SHA-256: f2262f75f4cbfd3ad158146963da86c75a4936d0b694026100898680b2828c88
150 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector infrastructure, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/wix?keyword=grimm+creatures+guide+with+pictures', which is likely intended to lead the user to a malicious site. The 'PDF_SEO_LINK_FARM' heuristic further indicates a pattern of hosting numerous PDFs on external sites, suggesting a broader campaign to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 https://ttraff.club/wix?keyword=grimm+creatures+guide+with+pictures
    • http://files.cuestacollegerodeo.com/uploads/1/3/1/4/131483550/f518ae417.pdf
    • http://balag.palmspringsapplianceservice.com/uploads/1/3/1/3/131398425/5083706.pdf
    • http://files.galtfarmsgenetics.com/uploads/1/3/1/0/131070711/ninavo_tewadoxebesij.pdf
    • http://mejotaze.kulturagentur-griffin.org/uploads/1/3/1/8/131857090/depawadusibi.pdf
    • http://vepava.lansingsportsboosters.org/uploads/1/3/0/7/130776177/8444891.pdf
    • https://cdn.shopify.com/s/files/1/0440/5847/6694/files/supplier_approval_process_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/9187/0375/files/jogujot.pdf
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/nba_basketball_live_streaming_1._11_apk.pdf
    • https://cdn.shopify.com/s/files/1/0432/1008/0420/files/saperosemapudupifiju.pdf
    • https://cdn.shopify.com/s/files/1/0437/0602/4090/files/line_6_helix_lt_user_guide.pdf
    • https://cdn.shopify.com/s/files/1/0464/6970/9982/files/exemple_examen_toefl.pdf
    • https://cdn.shopify.com/s/files/1/0437/6195/9061/files/hr_interview_assessment_form_sample.pdf
    • https://cdn.shopify.com/s/files/1/0435/9648/0670/files/episode_game_the_kiss_list_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/the_focus_group_guidebook_david_morgan.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001566c.bin
121f2d6a17903aa0656027ee4104b4cbbbfbd0807f1312ad3f497ee911110379
pdf-font-stream PDF embedded font (sfnt) at offset 0x1566C 5244 bytes
font_01_sfnt_off0001684c.bin
84f44a00fdd9aed250e6564a0eb092320088c267a3451ce03cb41e3d14eb5357
pdf-font-stream PDF embedded font (sfnt) at offset 0x1684C 10028 bytes
font_02_sfnt_off00018aa6.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x18AA6 4324 bytes