Malicious PDF — malware analysis report

Static analysis result for SHA-256 48ca32b1ef91ac88…

MALICIOUS

PDF

79.0 KB Created: 2021-03-13 19:40:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 074621348eb7848d338f4b8ccd4c297b SHA-1: 7aaa43983cf09f603e7c8eccd8c8831d265c6732 SHA-256: 48ca32b1ef91ac886c6464af15742be4dbf9c3292f1a4939933e666f3c2d810d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a resource hosted on 'lozipotod.ru', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains keywords related to 'answer key', indicating a lure. The presence of multiple unknown URLs further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lozipotod.ru/wix?keyword=kamico+reading+7th+grade+answer+key PDF link annotation
    • http://tapasin.sportsontheweb.net/apprendre_l_italien.pdfIn PDF document text
    • http://store50off.info/pechos_de_palomawzrc1.pdfIn PDF document text
    • http://wikotimu.scienceontheweb.net/4874569941.pdfIn PDF document text
    • http://bixaxivajujojar.mypressonline.com/45502841908.pdfIn PDF document text
    • http://just-gopro.com/melis1oojk.pdfIn PDF document text
    • http://zexejodubaxiku.mygamesonline.org/example_of_accident_report_in_technical_writing.pdfIn PDF document text
    • http://mpvideo.org/12882362349yh77p.pdfIn PDF document text
    • http://tonedomopoja.scienceontheweb.net/best_algebraic_number_theory_book.pdfIn PDF document text
    • http://ingmijn.com/interior_design_degrees_in_michigan22uhb.pdfIn PDF document text
    • http://sweetygirl.club/fukepobovokuxebefabjy4s3.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/godoremitiwuja/nebal.pdfIn PDF document text
    • https://6478d21b-237c-41b5-add8-96d7b9819624.filesusr.com/ugd/c7ef1a_e9c16ea5b2ec415ab74442641211e0a9.pdf?index=trueIn PDF document text
    • https://4c5ad993-366d-4b3a-aa99-9b6f56583180.filesusr.com/ugd/01e791_fa2a29a3626846e6a4e7751651ff8edd.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jupudizadid/wallpaper_spongebob_untuk_android.pdfIn PDF document text
    • http://tulajadulixo.myartsonline.com/pasozujudovisesofipafod.pdfIn PDF document text
    • https://1a441fb4-51dd-4528-a053-eb59ff664e18.filesusr.com/ugd/43d9d5_311ca4d95dd34c7d9926371662e5b1e8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/luxelula/22204404747.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/ar_rahman_music.pdfIn PDF document text
    • https://ff743420-c5e2-4527-a456-70ddb2a1abd8.filesusr.com/ugd/5178f2_87079a892eb546bf821667d907510ac7.pdf?index=trueIn 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_off0000f442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF442 5628 bytes
SHA-256: 2e3dbe7c116aceb968aac91e97cb4bc300c0bd284e831f602135d288f7bdc2b8
font_01_sfnt_off0001075f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1075F 11008 bytes
SHA-256: 3aeeab1891b03b5b492bbcb3e858a7c6bb93794a4f8beea26fb1fe7cc465a711

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