Malicious PDF — malware analysis report

Static analysis result for SHA-256 92844951e267ab53…

MALICIOUS

PDF

206.7 KB Created: 2021-04-02 21:29:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: dcf9926a1e102a2f61d064ea41adab7b SHA-1: ee1a50b90d3a2a5c4b2d2faadd87d98cf8ec64ef SHA-256: 92844951e267ab533e387921fef180f98d7b4c69d7e7773cc280edcd06eb7121
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a URL that suggests a download for 'kingroot 6.0.2 apk', indicating a likely attempt to trick the user into downloading and installing potentially unwanted or malicious software. The PDF structure itself, combined with the embedded URI, strongly suggests a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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://leonvi.ru/wix?keyword=kingroot+6.0.2+apk PDF link annotation
    • https://ribapapa.weebly.com/uploads/1/3/4/4/134479292/2805494.pdfIn PDF document text
    • http://appletopshop.ru/problem_solving_skillq8rfs.pdfIn PDF document text
    • https://lijujizakivim.weebly.com/uploads/1/3/4/6/134634855/6436260.pdfIn PDF document text
    • https://cdn.sqhk.co/tawibonikigo/dv8hcTm/mewuselosisiniruvodo.pdfIn PDF document text
    • http://summ-ita.space/humminbird_fish_finder_transducer_cablekf1wf.pdfIn PDF document text
    • http://xewuxufulizifu.22web.org/grundfos_mq3-45_pressure_booster_pump_parts.pdfIn PDF document text
    • http://mabizevo.22web.org/21358762718.pdfIn PDF document text
    • https://sejumajofejopib.weebly.com/uploads/1/3/2/7/132740214/popevixibuxop-dojevipefa.pdfIn PDF document text
    • http://yarrebitteh.online/keburulazezenovayt87r.pdfIn PDF document text
    • https://cdn.sqhk.co/fisejadiruw/fhjqRhx/8_ball_pool_hack_tool_2020.pdfIn PDF document text
    • http://scotiaenlineape-personas.com/menijipujamogineboxadub1lxvk.pdfIn PDF document text
    • http://rufapemosisubev.22web.org/asoosama_dheeraa_afaan_oromoo.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzosexiwugu/P9tNigb/dead_plague_zombie_outbreak_hack_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/ic2ichh/31194465693.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vuvazapej.rf.gd/gq_fall_style_guide_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53e4b2e2-8f35-4971-afe3-c82b9ac25660/the_things_they_carried_thesis_ideas.pdfIn PDF document text
    • https://e4dd5bf8-bd13-43e3-b37b-9624b2564f03.filesusr.com/ugd/093416_5b75c4fdf8be45a8a0f675dac8e1a57e.pdf?index=trueIn PDF document text
    • https://a19d597f-2220-41b3-9459-688249e8a20b.filesusr.com/ugd/f19f53_3619a12acaf048a089ae80d88100f702.pdf?index=trueIn PDF document text
    • https://835a0401-7144-467e-aacc-710587930ffc.filesusr.com/ugd/432cba_a47d094b430a4842933d44e778fedfaa.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/fea046af-4a76-4bf9-ab23-7f731a21d0e8/bronx_masquerade_nikki_grimes_summary.pdfIn PDF document text
    • https://9fd4a267-a675-4462-b2a8-34848e7262be.filesusr.com/ugd/3835dd_ec848d75ec5e477c8f656f588ec1ded3.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001d956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D956 94040 bytes
SHA-256: 83468c1ef7f64fd6e35e771911bf906392d024417c28dd2ae7bbd92434ffbc5e
font_01_sfnt_off0002f10b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F10B 5268 bytes
SHA-256: d1b146b874822c6603ec1dbafb90eb0da08ef52614c014217a9dc113b0b90a3b
font_02_sfnt_off00030318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30318 12424 bytes
SHA-256: 298cf74c74f98204a4c9e5c0fd6462fc73e06bd6af27edcc3da6bf6d3042c571

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