Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ee2fce002ca640d…

MALICIOUS

PDF

115.1 KB Created: 2021-03-08 00:22:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: e08254316524db46bc44767a6bf9f14b SHA-1: 608b1d5b8acd7ee1aa57cc510ad61e99e1bd957e SHA-256: 7ee2fce002ca640d74d72ad7567a34f58959f301f26e25fb9d215827f2d5faa8
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many pointing to disposable hosting, and is flagged by heuristics as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for SEO spam or phishing. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://xajibur.ru/wix?keyword=marvel+future+fight+beta+ray+bill+epic+quest+guide PDF link annotation
    • https://cdn.sqhk.co/komifugu/rjficJA/scary_clown_horror_game_adventure.pdfIn PDF document text
    • https://cdn.sqhk.co/xonoguduzob/X2ijhhc/27804386702.pdfIn PDF document text
    • https://cdn.sqhk.co/fixefalid/a1gjhf9/bubble_shooter_extreme_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xolanikipiz/jjdmRFF/70365881518.pdfIn PDF document text
    • https://cdn.sqhk.co/gojogefe/YucjgH5/kuvosewuponewebawam.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/igl3Cjf/68629845741.pdfIn PDF document text
    • http://solavopuna.22web.org/pemibaradagita.pdfIn PDF document text
    • https://cdn.sqhk.co/guvevifowo/Pbgfjj7/safusukowusip.pdfIn PDF document text
    • https://cdn.sqhk.co/fofateze/bgchbZg/zulefuzom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://15319a82-8c66-4906-b3c2-464277991f2b.filesusr.com/ugd/070acf_0ea77b012d204e089d2694cd5c27045d.pdf?index=trueIn PDF document text
    • http://tutedenomazul.epizy.com/zuzibijes.pdfIn PDF document text
    • http://beduxuluwuniva.rf.gd/what_are_the_goals_and_purposes_of_social_sciences_research.pdfIn PDF document text
    • https://cdb53ace-3f3f-41e1-823e-0ecf3add8ba2.filesusr.com/ugd/47e9e0_37a1340623e64918ad8ff7e0424aa335.pdf?index=trueIn PDF document text
    • http://jajoxutevo.epizy.com/jajelabo.pdfIn PDF document text
    • http://juvegebufu.epizy.com/pegumetota.pdfIn PDF document text
    • http://lufevexos.atwebpages.com/xr2_remote_control_manual.pdfIn PDF document text
    • https://78905da9-dd21-4190-abaa-c894c042e703.filesusr.com/ugd/851c7c_5433970448c1441cb50af6c162829f3e.pdf?index=trueIn PDF document text
    • http://ligoroxenafof.atwebpages.com/mugobabofenakakibuzivu.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_off00017d86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17D86 5852 bytes
SHA-256: 4ecbfbfe5705570dd063922ae88460358bca62b5e501bd80ac684e3f3da56359
font_01_sfnt_off00019173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19173 14628 bytes
SHA-256: f141b7e1215b678ac61727f66f595ecb4c2c54cdb10c27c76ef59fe924095812

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