Malicious PDF — malware analysis report

Static analysis result for SHA-256 16f2ddd37a10746f…

MALICIOUS

PDF

41.8 KB Created: 2020-10-28 14:50:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 1ebd647d934fb6eb6642af31c056c22f SHA-1: 3ac41af561e729644ebbb4d1fcdfe5b29af2fd70 SHA-256: 16f2ddd37a10746f8b5c8a849585c9dfeff6ab9206ffaf4313d84c7c5b9a68c0
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document functions as a link farm, embedding numerous URLs that lead to external content, including a known malicious redirector. The document body contains obfuscated text and references to 'Spider-Man 3 gwen stacy death', likely a lure to attract clicks. The embedded URLs are designed to redirect users to potentially malicious sites, indicating a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://cctraff.ru/pify?keyword=spider+man+3+gwen+stacy+death In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366664/normal_5f88d64ec5cd9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368760/normal_5f87c200d19ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370265/normal_5f8c5c0d25383.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367305/normal_5f87eae66682e.pdfIn PDF document text
    • https://gebedevalofibut.weebly.com/uploads/1/3/4/3/134379687/jolez.pdfIn PDF document text
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/nudedolabowivam_natijovewujidos_fogekajubu_xibukumaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367648/normal_5f886a8e5d01d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366659/normal_5f95e6e64e88d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379723/normal_5f95c0a600e74.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/3873212.pdfIn PDF document text
    • https://sewuvemap.weebly.com/uploads/1/3/4/3/134377394/tanibe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366319/normal_5f8757c73f949.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f89472e72992.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407818/normal_5f933269f034c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5978/1023/files/kubovarevoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8694/7500/files/ahsan_ul_fatawa.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/breatheology_deutsch.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/ninugakir.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_off0000634f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x634F 5916 bytes
SHA-256: 3f2270ef2bdf91be565acf6d7871d9f24a87a688789e6e964bde6386c067e59d
font_01_sfnt_off0000775d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x775D 10300 bytes
SHA-256: bf940358bfe5570e297746a4820159157acba8f287a46aaa985650b4471eae86

Open this report in the interactive analyzer, or submit your own file for analysis.