Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d5af1a3bd428c04…

MALICIOUS

PDF

181.9 KB Created: 2021-03-20 14:02:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 33ca343bdd997759c4921896174ebb62 SHA-1: 4190c9bf3257a90c2d9e13e430cb9c8bf82b5f74 SHA-256: 1d5af1a3bd428c04d8516e1be4fae72e9bee1643894a31ddf7bae824eac86b83
152 Risk Score

Malware Insights

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

This PDF document was flagged by a machine learning classifier and ClamAV as malicious. Heuristics indicate it uses an advance-fee scam lure, referencing a 'new jersey medicaid provider manual' to encourage users to click on embedded URLs. The primary URL, https://vilenefex.ru/wix?keyword=new+jersey+medicaid+provider+manual+2020, likely leads to a phishing page or a further stage of malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://vilenefex.ru/wix?keyword=new+jersey+medicaid+provider+manual+2020
    • http://the-english-temple.com/4390849673k3q67.pdf
    • https://nawajutexi.weebly.com/uploads/1/3/4/1/134108687/foxazoveketemaleripa.pdf
    • https://fudanologakobur.weebly.com/uploads/1/3/5/3/135394175/a1e7a90cf.pdf
    • https://kibanelamuvudu.weebly.com/uploads/1/3/0/9/130969844/4533710.pdf
    • https://jinugavov.weebly.com/uploads/1/3/4/4/134438703/7720299.pdf
    • https://duvozogol.weebly.com/uploads/1/3/5/3/135314926/f0d6fe7ab62.pdf
    • http://lozhobelir.space/kuwedaserij1rjhh.pdf
    • https://tegedibinatamam.weebly.com/uploads/1/3/5/3/135350324/devibuwoxewi_ralejedilowu_xunurofotel.pdf
    • https://kasikijafeke.weebly.com/uploads/1/3/1/4/131406722/620385.pdf
    • https://zenamuvevabun.weebly.com/uploads/1/3/1/4/131453902/9839545.pdf
    • http://maxobujixeweden.sportsontheweb.net/gun_island_amitav_ghosh_download.pdf
    • https://mosuvixixe.weebly.com/uploads/1/3/0/9/130969854/6177834.pdf
    • http://serdyukov.pro/89802389050bam9o.pdf
    • http://newoxoxi.mywebcommunity.org/67609771986.pdf
    • https://sitasujo.weebly.com/uploads/1/3/4/8/134876827/bd157f44d5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://xazomagojuwa.epizy.com/zarule.pdf
    • http://puwojewemuxa.epizy.com/gigeluwe.pdf
    • http://senajukuwizef.epizy.com/ledibipabexemuberaz.pdf
    • http://kasesapat.rf.gd/building_construction_details_book.pdf
    • http://rubijisezet.epizy.com/frozen_flower_google_drive.pdf
    • http://xixovunutev.epizy.com/govetabonobolon.pdf
    • http://fizifar.epizy.com/bahubali_tamil_film_full_movie.pdf
    • http://vidarixek.rf.gd/radial_engine_project.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000283aa.bin
1bec010df866bd511ce2042092fe9bfe42035893c69fb025e1ca55078b9eb4bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x283AA 5596 bytes
font_01_sfnt_off000296ad.bin
48036f53acbbae1289f0a27647bc76aa73303b2c8ac8e3c41b261e912adb10a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x296AD 10632 bytes
font_02_sfnt_off0002baef.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAEF 4324 bytes

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