Malicious PDF — malware analysis report

Static analysis result for SHA-256 000d1a18fdde00f2…

MALICIOUS

PDF

76.8 KB Created: 2021-03-12 17:48:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: c606f0a93bf868b54964bad59a424c37 SHA-1: a7f9dad3a58d8444ff9be9efb3df05ce44339f7b SHA-256: 000d1a18fdde00f2b8edd0f8e835b672ed4e20de4490fd8cb4bf0115b2e86af4
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to disposable domains and are likely part of a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of a URL with a search query strongly suggest a phishing or scam attempt. ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/strik?utm_term=how+long+does+landlord+have+to+do+final+inspection PDF link annotation
    • http://fodefon.getenjoyment.net/types_of_analysis_in_fea.pdfIn PDF document text
    • http://smm-target.ru/where_to_find_neurodese0e63.pdfIn PDF document text
    • http://organicsss.space/thermo_king_alarm_codes_102y4bn.pdfIn PDF document text
    • http://vizit.store/plastic_deformation_definition_bone7um2p.pdfIn PDF document text
    • http://neroveruturom.iblogger.org/12087610912.pdfIn PDF document text
    • http://zegiwire.sportsontheweb.net/rufevosiposorusexufimom.pdfIn PDF document text
    • http://wacc-cat.org/dorezatesifipemizactxal.pdfIn PDF document text
    • http://world-wild-shop.com/serveur_minecraft_pe_pvp_faction9g6y5.pdfIn PDF document text
    • http://afracheat9.xyz/rufibinuripileruwinatarvvq1r.pdfIn PDF document text
    • http://keep-travel.com/najegolikobezolurx43nk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/39dc0bc7-5152-4d78-a8e7-b7c27834bc3a/45875444032.pdfIn PDF document text
    • http://xosumuzav.epizy.com/nebinumujunininaki.pdfIn PDF document text
    • http://fitoripuxixanax.epizy.com/formation_of_internal_arcuate_fibers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ee544b3-d1fd-4f18-be0d-267feb5785cd/kovorote.pdfIn PDF document text
    • https://8d537faf-e869-4ed9-a29f-988560fab1dc.filesusr.com/ugd/0cce51_dc9b6d2cc1af492196959811e1ce34f1.pdf?index=trueIn PDF document text
    • https://8cff94d3-ecab-4ea5-ad27-d3e67d02fd32.filesusr.com/ugd/2813e2_d3948826f26841cd872c9e3c4fb6a4de.pdf?index=trueIn PDF document text
    • http://favilogas.rf.gd/16032468802.pdfIn PDF document text
    • https://cceb078e-1df6-42b0-9e12-359f30e42f1d.filesusr.com/ugd/e8506d_bebf4d61bdbb4efea899c30005912477.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/03203ba9-3a3e-4a7c-b927-c86f8c4b00ff/fedders_air_conditioner_control_panel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a1acb5b-9063-473c-bab9-ab5654a7678c/can_you_get_a_flip_phone_from_verizon.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_off0000ef55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF55 5532 bytes
SHA-256: 2cd56cfadd97aeff9fa8d0cf9386fcaed565533108cbdec989d2d36ab8bfc228
font_01_sfnt_off0001023b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1023B 10380 bytes
SHA-256: 7c21742c29960abc69f5343b481ba1ffb42f7059a94a76807f5e7e33cbdb95ba

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