Malicious PDF — malware analysis report

Static analysis result for SHA-256 02ea169d868b8eaa…

MALICIOUS

PDF

66.2 KB Created: 2021-02-17 04:25:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: c5e4fd7cacd017d87a0e5138fdcc76d7 SHA-1: f01299554e3bdc7db64e76dd574c7a8a994bc961 SHA-256: 02ea169d868b8eaa3bb1a9e1f5d6db538387a9351a5c37a841455c562483fc97
126 Risk Score

Malware Insights

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

The PDF document contains an embedded URI that redirects to a malicious domain, identified by heuristics as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were extracted, the presence of external links and the overall detection profile suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://jacksth.ru/strik?utm_term=kenmore+12+stitch+sewing+machine+manual PDF link annotation
    • http://nuturejedekaw.22web.org/avengers_endgame_full_movie_online_leaked.pdfIn PDF document text
    • https://cdn.sqhk.co/gawukale/HXihCbM/68164916365.pdfIn PDF document text
    • http://jelabenix.22web.org/25895894410.pdfIn PDF document text
    • https://latowinu.weebly.com/uploads/1/3/4/5/134508675/2420406.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/zedilegol/1954611920.pdfIn PDF document text
    • http://nanomupoveten.epizy.com/pleco_chinese_dictionary_pro_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/jitutaluwikimibi.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/17704418663.pdfIn PDF document text
    • http://xepivuze.rf.gd/makufusatovaga.pdfIn PDF document text
    • http://najorenowodume.epizy.com/foundations_digital_post_test_answers_chapter_13.pdfIn PDF document text
    • http://sotatelovutegep.epizy.com/bovogupapibuxabebobap.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/assistant_loco_pilot_exam_papers.pdfIn PDF document text
    • http://magotabitujotu.rf.gd/walirazibir.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_off0000c702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC702 5456 bytes
SHA-256: 8e0fe7017a82d4c5f00cceb4dbf147839726cd4f9a47273ba317d2a2a5d50a89
font_01_sfnt_off0000d986.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD986 9452 bytes
SHA-256: ca0a2d0973ead9c8a157ad21c0c6c7fd1e5e391ff500368156235038b5a3587d

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