Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e5963d8f2389578…

MALICIOUS

PDF

85.2 KB Created: 2021-03-07 18:29:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 273641bbbe1ef880c228b5a613be3eaa SHA-1: 9ca0bd2f95816afb32345440742ea048cec4560a SHA-256: 9e5963d8f23895781bd64038eeb6090358e0239557410a4d2c8665f44aa027e5
136 Risk Score
Tags
free-cdn-ebook-manual-lure

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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://dafemum.ru/wix?keyword=shou+apk+download PDF link annotation
    • https://jobadenel.weebly.com/uploads/1/3/1/1/131164033/tuzub_balepimuguw_wokuf.pdfIn PDF document text
    • https://cdn.sqhk.co/bujasugawo/agneXih/world_war_2_history_in_urdu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426942/normal_603c2cd0dfe40.pdfIn PDF document text
    • https://sezebotari.weebly.com/uploads/1/3/1/6/131636698/cd2d38d7efb5ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421471/normal_60366e1657dc6.pdfIn PDF document text
    • http://everydayy.fun/7866422716502b04.pdfIn PDF document text
    • https://kexowepapu.weebly.com/uploads/1/3/2/8/132815076/6334977.pdfIn PDF document text
    • http://instapriz.website/invoice_layout_word_templatejwnq6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446161/normal_6007bc08896b4.pdfIn PDF document text
    • https://cdn.sqhk.co/tufuboloruj/icjerhd/69459315029.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370547/normal_5ff5742046531.pdfIn PDF document text
    • https://voberugupov.weebly.com/uploads/1/3/4/4/134496708/9626586.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374021/normal_6014021f0c8c4.pdfIn PDF document text
    • https://cdn.sqhk.co/dijabidasu/gK22YLv/free_mp3_downloads_for_pc.pdfIn PDF document text
    • http://bestgirl69.com/producer_equilibrium_in_economics1ur0h.pdfIn PDF document text
    • https://pizotiwedif.weebly.com/uploads/1/3/4/8/134868845/pogezat.pdfIn PDF document text
    • http://lidlid.xyz/44555431475ezu1e.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/xuzed/belfairs_academy_sixth_form.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/72896181132.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/sutevasifiragabosakakudo.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/coloring_sheets_paw_patrol.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/82608435021.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE123 6392 bytes
SHA-256: 5fb9d304ba5b003282b84f4ab67186c6af0d1e2b2cfe40cbad36a29dbb3f14c1
font_01_sfnt_off0000f703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF703 5032 bytes
SHA-256: db2ab43497b9a02664c584ff686572c1497b9b46889c8decad68eb75498555f5
font_02_sfnt_off00010836.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10836 14524 bytes
SHA-256: 5aee5d2bccfc203fc4ae20bcf75ab25e0a57b9e60f51b7f3eeb28168ff4ca5e6
font_03_sfnt_off000131e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131E2 16168 bytes
SHA-256: 794d8cc090a449e0d460036171b2d5b2c749cb0dc3f17972c44626ada68ee3d8

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