Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f8f749748e5afda…

MALICIOUS

PDF

79.8 KB Created: 2021-03-13 23:59:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: f91d183ed1f3414d7e26864c09d6a0b7 SHA-1: 87aff3d52b2e2c78fc09c7bb3d6e2c588b4f086b SHA-256: 6f8f749748e5afda9c38f6c46b3324927d71d0af4cf5baf974e9c2c0a6adec02
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many pointing to disposable hosting services, suggesting a link farm designed to redirect users to malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags the document's structure as a link farm on disposable hosting, reinforcing the phishing or malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/strik?utm_term=trane+xl80+furnace+manual PDF link annotation
    • https://xerazagas.weebly.com/uploads/1/3/0/8/130813913/025590.pdfIn PDF document text
    • http://tejowigasinafu.getenjoyment.net/ver_pelicula_doa_barbara_con_maria_felix.pdfIn PDF document text
    • https://mebusogaduvorit.weebly.com/uploads/1/3/0/9/130969439/0729a844c11193.pdfIn PDF document text
    • http://webpost.pro/web_design_templatesjsszh.pdfIn PDF document text
    • https://jomupalekiloja.weebly.com/uploads/1/3/4/3/134310494/f0802f3a56f.pdfIn PDF document text
    • https://jowamevo.weebly.com/uploads/1/3/4/5/134511132/vakibajen-vefitowolafew.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403418/normal_60020d77346c2.pdfIn PDF document text
    • http://wowogobofomufu.mygamesonline.org/what_can_co_teachers_do_on_class_dojo.pdfIn PDF document text
    • http://rewita.fun/como_atualizar_o_android_tv_box_mxq09h88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369794/normal_6042009d7bf13.pdfIn PDF document text
    • http://makelemeg.mygamesonline.org/how_to_use_a_convection_oven_microwave_combo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403266/normal_5ffc39ab33248.pdfIn PDF document text
    • https://tefawizudarezuf.weebly.com/uploads/1/3/4/6/134640126/540833.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409827/normal_604156dfa3958.pdfIn PDF document text
    • http://technodom11.com/washing_machine_repair_in_sharjah_al_nahda221uj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481154/normal_600b7681d9e0d.pdfIn PDF document text
    • http://xexapitanegis.getenjoyment.net/bharatanatyam_mudras_with_meanings.pdfIn PDF document text
    • http://lolkek.xyz/menojamomeuub.pdfIn PDF document text
    • http://salebox.shop/www_k12reader_com_answersgnvkl.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/nutanigonu/marotunalovomakuxutotad.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/bible_gateway_plus_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/dna_and_genes_worksheet_11._1.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/vidmate_old_version_app_for_android.pdfIn PDF document text
    • http://gapoxuvopa.onlinewebshop.net/xazasaf.pdfIn PDF document text
    • http://makakanow.onlinewebshop.net/61967298120.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_off0000f83d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83D 5200 bytes
SHA-256: 2dcc90b30d5ca33f4561fac0fa0b163af7dac9290df062f88e67f545802d9c91
font_01_sfnt_off000109df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109DF 11980 bytes
SHA-256: 1ff811f972249be3b3fea89e407b4bacd8d183452d5097ab38b9cad9deccd1c0

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