Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9f479b9947d3d4…

MALICIOUS

PDF

42.4 KB Created: 2020-11-03 03:05:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0a84e202901f890d5466b234bc5d1faa SHA-1: 90df2a42cd769f51ef485f94e7d5d7f955537dc8 SHA-256: 0d9f479b9947d3d4864a96f20e5619288eaf1299aa9582ef09774a46fbf993a1
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://ggtraff.ru/aws?keyword=terrarium+tv+apk+latest+version+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4428043/normal_5fa08a6d76f84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374957/normal_5f8aff655df9d.pdfIn PDF document text
    • https://dubanivexog.weebly.com/uploads/1/3/4/3/134331992/527f91ef4840f5.pdfIn PDF document text
    • https://fojanatixisi.weebly.com/uploads/1/3/4/2/134265346/b2323c41a032c2.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/ratixifo/sayak_valencia_capitalismo_gore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/1968/8865/files/34772946043.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/psychology_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/renul.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/dukubafan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/3689/6151/files/avchd_to_mp4_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/8001/3725/files/golds_gym_xrs20_weight_bench_dimensions.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E19 5272 bytes
SHA-256: 629ace2cc42485052b40f37e1189be1d60333a0da415351330e623d933e0cd4c
font_01_sfnt_off00006ffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFA 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off00007888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7888 10552 bytes
SHA-256: 9d159a4bc8a72f81f3d186145ea0c0f8bb9373239cbc510dbed1c9dd4884c4d1