Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac65506d892cacc3…

MALICIOUS

PDF

85.3 KB Created: 2021-03-17 18:39:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6fd2d1a67b97f1ecf1f3f88eebfb248b SHA-1: b2c3a557cf3f146a9435372a4abf3b8caeecccae SHA-256: ac65506d892cacc3ef66b20755694ed86936c4f2c5a1a6f55a6455ab3927cd3a
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://vilenefex.ru/wix?keyword=google+digital+portfolios PDF link annotation
    • http://zuzatew.medianewsonline.com/nadoxodekutu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492574/normal_5fe0cf00b3886.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474739/normal_5ffa77e240b5f.pdfIn PDF document text
    • http://setokanekema.mygamesonline.org/cracker_barrel_nutrition_breakfast.pdfIn PDF document text
    • https://zedumolubu.weebly.com/uploads/1/3/4/8/134862080/3546782.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479705/normal_5ff2ccfcbb523.pdfIn PDF document text
    • http://toxipoxekej.medianewsonline.com/is_tomtom_go_app_free.pdfIn PDF document text
    • https://wutosalix.weebly.com/uploads/1/3/4/6/134635680/07ffd023a36421.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495551/normal_604425923cfa9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469105/normal_60005c254f7c5.pdfIn PDF document text
    • https://fulojexerewo.weebly.com/uploads/1/3/5/3/135345176/ebd4201aad3d52a.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/tawovojo/xugupepenenaza.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/ripagukulakugikovuz.pdfIn PDF document text
    • http://niwimugosaz.onlinewebshop.net/big_fish_games_pc_download_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/gagotaniwipure/magisterium_the_golden_tower.pdfIn PDF document text
    • http://kikanelomer.onlinewebshop.net/wetibe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be4c2309-6be9-46a8-ae96-ebee16078237/buwedesonaramavujod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/625c477b-0f85-4d83-8558-ae23e88e3297/45249422944.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79d7ace6-34b5-419d-a292-623992b2c112/vapufufiwekepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76e5565f-4d2c-4aa0-a709-57da09fd613f/what_size_in_inches_is_ho_scale.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/prepositional_phrase_worksheet_7th_grade_with_answers.pdfIn PDF document text
    • http://mifojizu.myartsonline.com/ruger_p95_tactical_accessories.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_off00010ee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE9 5240 bytes
SHA-256: 5ac564c78d7cd6d4fd1c9a0c2eae67328b21418b4693a28de728fde1b57c82d9
font_01_sfnt_off000120d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120D0 11504 bytes
SHA-256: ead4f7306086914bba6e2aeba95deb71082d18483e432932ca87e9e5bfa6f1a1

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