Malicious PDF — malware analysis report

Static analysis result for SHA-256 0768d7b4618eec0f…

MALICIOUS

PDF

78.9 KB Created: 2021-03-24 08:09:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 29ed55c0d140ba1d12295fd180f75538 SHA-1: 33ec7f0f2890f0bfe06b9199e9d3f814958e483e SHA-256: 0768d7b4618eec0f5d11f018b5949d0b6ef43c13ea7a615ac0fe36e3805c3fdc
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as a search result for educational materials. This URL is likely intended to host a malicious payload or lead to a phishing page. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://jacksth.ru/wix?keyword=kuta+software+infinite+algebra+1+graphing+lines+answers+with+work PDF link annotation
    • http://nemafivuduwidob.iblogger.org/47265180912.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492892/normal_6010c4b3db367.pdfIn PDF document text
    • https://cdn.sqhk.co/xotosobupis/jhh13jb/wofefi.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/jdAghmC/sixotizogilotivo.pdfIn PDF document text
    • https://cdn.sqhk.co/pesegozod/LAhgZjc/27947126366.pdfIn PDF document text
    • http://gachihyper.xyz/calisthenics_movement_programpmh3l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368997/normal_5ff4014e51c91.pdfIn PDF document text
    • http://witaseru.iblogger.org/kanibose.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421207/normal_604cb0ffcca4e.pdfIn PDF document text
    • http://melodabogaso.66ghz.com/govaporakuv.pdfIn PDF document text
    • http://vir-tus.com/ford_ranger_suspensions11ocr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367940/normal_5fd2507f9aa87.pdfIn PDF document text
    • https://lapadodipelij.weebly.com/uploads/1/3/1/1/131164402/venivukidiloxed-vatuzu-vidinafero-panogux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472491/normal_6058b5bf0ab37.pdfIn PDF document text
    • https://zarojapejafaro.weebly.com/uploads/1/3/5/3/135347044/4376743.pdfIn PDF document text
    • https://cdn.sqhk.co/rujamuzizogo/4DMjjfs/maplestory_sheet_music.pdfIn PDF document text
    • http://wspring.space/directv_genie_remote_control_not_workingg08e2.pdfIn PDF document text
    • http://filanion.online/abecedario_para_colorear_mayusculas_y_minusculaszwo1x.pdfIn PDF document text
    • https://xamikike.weebly.com/uploads/1/3/1/4/131406211/2515708.pdfIn PDF document text
    • https://cdn.sqhk.co/jumunuji/1Vjcigf/68157869577.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/zifilobesumafi/juralidevati.pdfIn PDF document text
    • https://s3.amazonaws.com/vesubodufisi/maxuporujuwobamoxomili.pdfIn PDF document text
    • http://sabinozugi.epizy.com/genativedutibexejuj.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/winexanaxed.pdfIn PDF document text
    • https://s3.amazonaws.com/firudegix/jafuzezise.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/yaesu_ft2dr_vs_ft3dr.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF924 5480 bytes
SHA-256: 6cb434f9ab65966eeb0a4c76afe4aa4a5b8d6bdcf2f5ef5916ff2c321b1bfa23
font_01_sfnt_off00010bdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BDD 9844 bytes
SHA-256: fd3c3f7f1dbf2cd49deff6141fc03f428069d82053a232f789b77be633c8c062

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