Malicious PDF — malware analysis report

Static analysis result for SHA-256 433402f7459b94b3…

MALICIOUS

PDF

79.4 KB Created: 2021-03-15 11:05:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ed406bdea6b9231511444b77b16a0bb9 SHA-1: 0c20729bf6bbf61d3abe50717051cd2fb003ca99 SHA-256: 433402f7459b94b3111b0f1ad88a997b39992c18559ff35c7858aa9b5c23dc0e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://midufefew.ru/strik?utm_term=grunch+of+giants+espa%25C3%25B1ol PDF link annotation
    • http://gexopidikimo.mygamesonline.org/23828822765.pdfIn PDF document text
    • https://cdn.sqhk.co/kokojisip/hbI6yii/wrestling_revolution_3d_mod_apk_unlimited_money_download.pdfIn PDF document text
    • http://ruxuzosok.mywebcommunity.org/72155414006.pdfIn PDF document text
    • https://cdn.sqhk.co/datolabevev/biiJdic/dragons_rise_of_berk_cheats_no_download.pdfIn PDF document text
    • https://pemugaladesav.weebly.com/uploads/1/3/5/3/135307247/tivodip.pdfIn PDF document text
    • http://xawegap.mywebcommunity.org/wezalofovikuzirod.pdfIn PDF document text
    • http://xofebuledat.scienceontheweb.net/centos_6_commands_list.pdfIn PDF document text
    • https://mofomajem.weebly.com/uploads/1/3/4/3/134349017/jofifojojazim.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/Qic7ha6/rebel_inc_apk_premium_espanol.pdfIn PDF document text
    • https://cdn.sqhk.co/nemuvefik/et9abig/callaway_preowned_epic_hybrids.pdfIn PDF document text
    • http://zigodijod.iblogger.org/critical_thinking_questions_and_answers.pdfIn PDF document text
    • https://wipasajumavadus.weebly.com/uploads/1/3/4/7/134775966/6843909.pdfIn PDF document text
    • https://jebelobuf.weebly.com/uploads/1/3/1/4/131452997/fuzezowoxetaxetewu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bogalibamadom.myartsonline.com/27567165143.pdfIn PDF document text
    • http://gegivunijivi.rf.gd/wakilifomulezuropa.pdfIn PDF document text
    • http://fapugiv.rf.gd/past_tense_verbs_worksheets.pdfIn PDF document text
    • https://7095e710-59ac-4d27-8a5a-f3bbcaf65deb.filesusr.com/ugd/418e76_d971251a730a4d8980da176650857fa0.pdf?index=trueIn PDF document text
    • http://dowuvoduwitovos.atwebpages.com/does_dish_network_flex_pack_include_local_channels.pdfIn PDF document text
    • https://af431a04-9ebc-4ea4-a98d-45e4ffbfad14.filesusr.com/ugd/485053_9f8fe662602048d082e0818e2d49f4e3.pdf?index=trueIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/10546169397.pdfIn PDF document text
    • http://sagoralezerelo.onlinewebshop.net/canetti_crowds_and_power.pdfIn PDF document text
    • http://ferodokibaw.epizy.com/35603734264.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E7 5520 bytes
SHA-256: 7d748314797a7f88e9e1c343507b6d159a7012bc90102087d26d6daa27815d0f
font_01_sfnt_off00010573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10573 12680 bytes
SHA-256: fb2a085fc0d0d5bd7ac265ee5830257446b4d6f609480410d96ff9cc6cc70a8d

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