Malicious PDF — malware analysis report

Static analysis result for SHA-256 6adeebfaa91c6ec8…

MALICIOUS

PDF

76.6 KB Created: 2021-03-27 19:02:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0058816ec7b130f0810ed65e61e49040 SHA-1: 78dc30f89714dfe5a25af751264cdea9e2026ece SHA-256: 6adeebfaa91c6ec83c59286cd4075cbfb9d3a139885754893396bf048fbbed34
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'https://seumenha.ru/wix?keyword=model+yth22v46+manual', which is likely used for phishing or to serve a second-stage payload. The document body, though heavily obfuscated, suggests a lure related to a product manual. The presence of multiple unknown and potentially malicious URLs further supports a phishing or malware distribution attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/wix?keyword=model+yth22v46+manual
    • http://wownatural.fun/33242995188ozsih.pdf
    • http://peramabejakes.sportsontheweb.net/work_breakdown_structure_example_software_project.pdf
    • http://avit0.cc/examen_de_biologia_secundaria_1_gradoaow8h.pdf
    • http://ninotekega.mygamesonline.org/18535440095.pdf
    • http://poruzotosiku.getenjoyment.net/golijera.pdf
    • http://vegifeda.mypressonline.com/adventures_of_ibn_battuta_summary.pdf
    • http://jilavixit.medianewsonline.com/27777099788.pdf
    • http://kellys.space/kabixewewarufuc9s0e.pdf
    • http://lawobulobatidu.22web.org/successful_interview_tips.pdf
    • http://italywom.space/advance_directive_form_njuzjym.pdf
    • http://jigunemav.22web.org/criminal_background_check_form_virginia.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vugugemo.atwebpages.com/53990553634.pdf
    • https://s3.amazonaws.com/remuv/68830725298.pdf
    • http://loturorilod.rf.gd/femebogegopigesedozu.pdf
    • http://siduxosezuk.rf.gd/dedereberi.pdf
    • http://kawerulim.onlinewebshop.net/do_plants_need_cool_or_warm_humidifier.pdf
    • http://bugenerefajujus.atwebpages.com/barbarians_of_lemuria_legends_of_steel.pdf
    • https://s3.amazonaws.com/woxewiwupir/afmc_admission_form_last_date.pdf
    • https://s3.amazonaws.com/liwara/kovimiritepesud.pdf
    • http://bukepajusoka.rf.gd/8504773193.pdf
    • http://wuwuxatedi.epizy.com/davebom.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_off0000eab8.bin
de32e8651ae41b20f91b9b2af50812d584be2a82ff7129fe1c872ac06a32ec2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB8 5332 bytes
font_01_sfnt_off0000fcd7.bin
dd7b1483d693531f9c9bef375cacc3378f76a187e29156f4b4775c039ecfb36e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD7 11836 bytes

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