Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d935670557151f…

MALICIOUS

PDF

46.1 KB Created: 2020-11-03 12:16:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1674e96c02e201a6d979b225854b2cf1 SHA-1: 14d3c4cfbff52dc06c81e5a60406507dca189110 SHA-256: d1d935670557151fb2664055d528ff1b474e7b64dc21ece77336dfdd7e7cb0ca
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=jim+gallien+quotes+into+the+wild In PDF document text
    • https://netaluzubik.weebly.com/uploads/1/3/0/8/130813777/fb76908ca8.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/morijozaweve-radiru-guler.pdfIn PDF document text
    • https://nixofukotozawe.weebly.com/uploads/1/3/4/3/134313466/4e746c85380.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368964/normal_5f953315ab0f3.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/jumedemimo/53883084342.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b77ce98b-da6f-4c50-885e-63746d93086c/83948080764.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/xutiwadexolu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2659a70-9c79-4f41-b1c9-8669b46ec461/kememoratamaxidoto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2dd7be11-f15a-4e5b-987d-1680f7357720/lotodemaxilovepuzubada.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/55665783161.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c95a0d50-22e8-4189-8051-ff377e0f6a4b/vaxowepixipivubetub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf82c3cc-9efb-481f-b969-f05fc99c7486/lenovo_yoga_730-15ikb_best_buy.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/zepopekezo.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/33071725667.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/all_about_me_poster_ideas_for_middle_school.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75ED 5348 bytes
SHA-256: ba18be7c3634af5ffa7df6091c7bc76aa45d9b600a08a7692fd13ff8b2e8f8f2
font_01_sfnt_off000087fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87FB 10352 bytes
SHA-256: 96313c91bac0917afcf935430ff6541c29dbadf94d14a4fc7832c6ac4a72b678