Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f8886bfb70029b…

MALICIOUS

PDF

84.8 KB Created: 2021-03-11 21:50:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ecda27b9d52ae299c95bde31bafa089 SHA-1: e7d74bcd484d6a4dadec08bf417f845326aaf03a SHA-256: e1f8886bfb70029b3039b11b853f08ae82c148603a0ee3a2556c5a90b3351d3d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a malicious domain, likely intended to deliver a phishing lure or malware. The ML classifier and ClamAV detection strongly indicate malicious intent, with the primary attack vector appearing to be social engineering via a deceptive document body. No scripts were extracted, but the presence of numerous external URLs suggests a downloader or redirector functionality.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • 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/wix?keyword=jennifer+jareau+gif
    • http://mibilivo.scienceontheweb.net/handbook_of_swarm_intelligence.pdf
    • http://stankoff.org/67859742379be22v.pdf
    • https://cdn.sqhk.co/vatukaso/ajaiacz/events_this_weekend_in_lansing_michigan.pdf
    • http://xsale.trade/pukusovevuqftc1.pdf
    • http://moxilekulina.getenjoyment.net/addition_table_1_100.pdf
    • https://konezevebul.weebly.com/uploads/1/3/1/3/131381420/86ad8530a944f76.pdf
    • http://nefusetas.iblogger.org/3rd_class_maths_textbook_download.pdf
    • https://tozadifoxu.weebly.com/uploads/1/3/4/9/134904498/6393743.pdf
    • http://nanamojuvimujo.medianewsonline.com/70744556989.pdf
    • https://sovajavab.weebly.com/uploads/1/3/4/0/134041947/8701333.pdf
    • http://puwuditufu.22web.org/tunoxumepofedavekusobe.pdf
    • https://cdn.sqhk.co/pananumujo/bEjcZl0/simple_online_to_do_list_free.pdf
    • https://cdn.sqhk.co/xagaxubibiz/MfTiehg/top_war_battle_game_mod_apk_hack.pdf
    • https://cdn.sqhk.co/moxinivo/eghhhgi/nodukekonij.pdf
    • https://vajepagipe.weebly.com/uploads/1/3/4/0/134000011/xozas-xigowakilos-biloxegu-pedevajuz.pdf
    • http://muzidos.iblogger.org/gexefukapekoposu.pdf
    • https://cdn.sqhk.co/wuvukidovime/cMRAhfE/jozomakofabewaba.pdf
    • http://wovolutoxali.iblogger.org/breathing_colours_guided_meditation_script.pdf
    • https://fixuvanexe.weebly.com/uploads/1/3/4/3/134359444/810fef31e01.pdf
    • http://gatorama.site/is_salems_lot_available_on_netflix6sx56.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zinamasab.epizy.com/going_concern_issues_in_financial_reporting.pdf
    • http://tojederetesez.epizy.com/90477089581.pdf
    • http://vowatul.rf.gd/senior_administrative_officer_interview_questions_and_answers.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_off00011325.bin
ab6f5ac4f77e4bb607f5a7a43b0ba9a4f696d4c8fdbd4a0b96422a6cb6c983e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x11325 4788 bytes
font_01_sfnt_off0001238a.bin
0a40a1f1d27933a90938aa50f2229248348b2808f1b655f7f3be04fd202b075b
pdf-font-stream PDF embedded font (sfnt) at offset 0x1238A 10132 bytes