Malicious PDF — malware analysis report

Static analysis result for SHA-256 62dbdac7b7703495…

MALICIOUS

PDF

43.7 KB Created: 2020-11-02 18:22:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: be8860077b3e6e516fb2efe5e1d7c46a SHA-1: 14ee871e217b8bf59025353335d2cdf263cfcc59 SHA-256: 62dbdac7b7703495226176d5f83ec2761c3dddc17ff683de6e84281c85841950
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://gettraff.ru/aws?keyword=cheat+codes+for+tri+peaks+solitaire In PDF document text
    • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/xaxebujakaw.pdfIn PDF document text
    • https://pesegoniz.weebly.com/uploads/1/3/4/4/134497823/zasoduzofe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367279/normal_5f874304549d8.pdfIn PDF document text
    • https://gubetixe.weebly.com/uploads/1/3/4/3/134314982/wozuwepugose.pdfIn PDF document text
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/xopovexobaxemuvir.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sikuva/distributed_systems_principles_and_paradigms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/5390/9660/files/economic_development_in_thailand.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/72532299066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/5118/4028/files/88493176482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2235/9447/files/collagen_synthesis_pathway.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6656/2966/files/bendy_and_the_ink_machine_apkhere.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/subnetting_and_supernetting.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000556d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x556D 5212 bytes
SHA-256: 450ea19c5ef172e4ea750d16938bb4a27bfaa47d6e220abf3c2578afd8d36361
font_01_sfnt_off0000671b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671B 10924 bytes
SHA-256: 9cab3b30892252df07944a4f264f5a013054568580f989aad11f6adb3f9b92da
font_02_sfnt_off00008c81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C81 16340 bytes
SHA-256: 4f9bddd8120402856594b33adaeac6aa436e26f5eb63b748bf1666df64cd7ce8