Malicious PDF — malware analysis report

Static analysis result for SHA-256 65f347ee213da3f8…

MALICIOUS

PDF

79.8 KB Created: 2021-03-19 13:58:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1655919db303569a23252bd01abec8e5 SHA-1: 28ec10ebad936ca1e05f74172c00769ac6af3961 SHA-256: 65f347ee213da3f8f8217e43f67260754cbda5dda1374cf438b3d5208f1aefb5
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many pointing to Weebly-hosted PDFs, suggesting a link farm or redirection mechanism. The primary lure appears to be a broken link related to 'Genie excelerator', likely intended to trick users into visiting malicious sites. No scripts were extracted, but the extensive use of external links is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://resalured.ru/strik?utm_term=genie+excelerator+learn+button+broken
    • https://warenumew.weebly.com/uploads/1/3/4/8/134871813/20314f14749334.pdf
    • https://kedumapeba.weebly.com/uploads/1/3/4/5/134593926/rupobezelitefe.pdf
    • https://giravegide.weebly.com/uploads/1/3/2/6/132681237/sasavapi-zokidixazumolo.pdf
    • https://bawekiseboluxis.weebly.com/uploads/1/3/5/3/135327810/xijizeravugesodopi.pdf
    • https://kumigovujubexug.weebly.com/uploads/1/3/0/7/130776874/fobosodinosapuni.pdf
    • http://ferategaj.scienceontheweb.net/magnavox_dvd_recorder_vcr_zv427mg9.pdf
    • https://juladuwupib.weebly.com/uploads/1/3/4/7/134763366/wizefumoxakiluwek.pdf
    • http://fafabil.getenjoyment.net/financial_analysis_report_template.pdf
    • https://mivagori.weebly.com/uploads/1/3/5/3/135318233/mawezolavatubipi.pdf
    • http://dutarotanazosuv.medianewsonline.com/15210390171.pdf
    • https://rajizoru.weebly.com/uploads/1/3/1/8/131856770/b46563866664.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rovikibixu/51987928727.pdf
    • https://uploads.strikinglycdn.com/files/b2ca1bdc-7144-43d0-a95e-cd590ec5f23e/45123230084.pdf
    • https://s3.amazonaws.com/wudibirewuduto/free_lesson_plan_templates_for_preschool_teachers.pdf
    • https://s3.amazonaws.com/viwoxuz/un_tranva_llamado_deseo_online_latino.pdf
    • https://s3.amazonaws.com/lowuwofuxali/tuxitipiro.pdf
    • https://s3.amazonaws.com/mudurixo/telabapaxamupiweju.pdf
    • https://s3.amazonaws.com/timituvupame/42568170792.pdf
    • https://uploads.strikinglycdn.com/files/357821a6-7aee-4010-9e6c-d68cc9b23223/jensen_vx7020_navigation_manual.pdf
    • https://uploads.strikinglycdn.com/files/cbce740b-23af-410b-a034-c12f8704841b/bivub.pdf
    • https://s3.amazonaws.com/jijumupade/amiga_500_games.pdf
    • https://s3.amazonaws.com/nakuzafol/piwuniromeg.pdf
    • https://uploads.strikinglycdn.com/files/845565c5-9eb1-430b-81d0-8b6676158069/high_dps_hunter_build_destiny_2.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc2b.bin
5fc77842c1eee78e0ccb2fa3dfd762e6578aa96f1ffa15cdb0e2a9b4ed6fa9c5
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC2B 4916 bytes
font_01_sfnt_off00010d01.bin
867c820a0d89e8f71d2e63783be30e5cdadae4f22f0f13f7612f3c088464c0c9
pdf-font-stream PDF embedded font (sfnt) at offset 0x10D01 10704 bytes