Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b82d1b7b2b65553…

MALICIOUS

PDF

85.1 KB Created: 2021-03-19 19:22:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a881577403f9b7ae3f4827e180c6b067 SHA-1: 7226be2f69ed1c4b93af7fd5e969136c8fbbdb2e SHA-256: 3b82d1b7b2b65553e3893af272a7ac685e92b99a858921cc08fd37e722434e0e
136 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://jottigo.ru/wix?keyword=group+8+elements+are+unreactive+because PDF link annotation
    • http://hookup157.site/99173679103hou84.pdfIn PDF document text
    • http://goloszauniver.fun/mibulegibeg1jpwj.pdfIn PDF document text
    • http://hookup682.site/tovofebiluxewe30nqq.pdfIn PDF document text
    • https://cdn.sqhk.co/difigobon/cThjLzd/88133947836.pdfIn PDF document text
    • http://pokemonrivals.online/bimasena_sdd_liveryz3mg5.pdfIn PDF document text
    • https://cdn.sqhk.co/madumubo/hemjihj/sprint_customer_service_change_my_number.pdfIn PDF document text
    • http://blubadgehelp.net/17216555077fu5om.pdfIn PDF document text
    • https://cdn.sqhk.co/wavefekus/gckWkic/car_in_traffic_2018_mod_apk.pdfIn PDF document text
    • http://lovemecompletely.com/wood_mizer_lt_40_service_manualp2z61.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/CsqibHb/duzibadufefubonatamarukez.pdfIn PDF document text
    • https://cdn.sqhk.co/vemetafije/hhcuwha/ultimate_lion_simulator_mod_apk_android_1.pdfIn PDF document text
    • http://rimka.xyz/introduction_to_continuum_damage_mechanicse7wk3.pdfIn PDF document text
    • http://com-login8.xyz/xexazulekosewod28a1m.pdfIn PDF document text
    • http://legko.travel/zufogokatuzuwazavusodaliuzu9c.pdfIn PDF document text
    • http://jumbochecker.com/bengali_golpo_boi34bgv.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/welanisowari/mofamapik.pdfIn PDF document text
    • http://lexituvom.epizy.com/kumesixomogo.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/3068780087.pdfIn PDF document text
    • https://s3.amazonaws.com/kubedukowug/jedufalulerirew.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/keguvu.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/corvette_c3_buyers_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/91525429468.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/nefejameziwevomi.pdfIn PDF document text
    • http://kapudezab.rf.gd/keirsey_temperament_sorter_ii_test.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/64904247016.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/wopufupitiben.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_off00010d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D56 5504 bytes
SHA-256: 69cadfb5a49174f3159ca5886f7695bb99cc1b0de8038f85c5e8033d09169ecb
font_01_sfnt_off00011ffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FFD 11212 bytes
SHA-256: 0c6cec916c23af771c83768e90d317f64b39d1a1ac6dc3ba0511fa10d3cb2d2e

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