Malicious PDF — malware analysis report

Static analysis result for SHA-256 e11e0fc10f29375e…

MALICIOUS

PDF

49.6 KB Created: 2020-11-05 13:50:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3826a51eba936099aea995d4cb937954 SHA-1: 220aa7602d2f11185986dc03d5ad8b1409a033fd SHA-256: e11e0fc10f29375ea93703798ebef513be58961c12ed5622b8edd96439224272
94 Risk Score

Malware Insights

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

This PDF document contains a link to a known malicious redirector, 'https://gettraff.ru/strik?keyword=walmart+grocery+shopping+app+download', which is designed to lead users to further malicious content. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs further supports a phishing or social engineering attack pattern. No scripts were extracted, but the document's structure and embedded URLs suggest it is part of a phishing campaign.

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/strik?keyword=walmart+grocery+shopping+app+download In PDF document text
    • https://mawepalutolura.weebly.com/uploads/1/3/4/0/134040672/kojakekowilo_xidisemitub_danamemarevutuv_zajigulut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421611/normal_5fa06eb886853.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392462/normal_5f966c704de3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387060/normal_5f9137494682f.pdfIn PDF document text
    • https://mefevujeloz.weebly.com/uploads/1/3/4/3/134317202/vewawokos-vopolaw-wimirunelatoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412593/normal_5f9b3a0412503.pdfIn PDF document text
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/153262e27192c51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379485/normal_5fa37071d6977.pdfIn PDF document text
    • https://sixodajumam.weebly.com/uploads/1/3/4/3/134311071/381cf26a4df66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370076/normal_5f93aaa3df9d7.pdfIn PDF document text
    • https://zosubidam.weebly.com/uploads/1/3/4/3/134316114/taragajumufu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F76 5696 bytes
SHA-256: 0d493173004c9bd77869ccb5d51f4fe07fcc44d1cf9c84d5088996a2bcc50f01
font_01_sfnt_off000092c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C3 11532 bytes
SHA-256: 4e5665820d554fd5c90b9078666376f69a86b33cbe01d040ebd125c017967fa8