Malicious PDF — malware analysis report

Static analysis result for SHA-256 07d48399ddb01e08…

MALICIOUS

PDF

92.6 KB Created: 2021-04-01 16:27:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 474f4e094458fd9b6c5d1123ae439ce6 SHA-1: 91d7a3e91d247b0228c6ad2b4f3a12f5668437c3 SHA-256: 07d48399ddb01e08cd60355d45333a221af833d8ebc2b4742517859675fafe0d
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 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/strik?utm_term=whirlpool+refrigerator+ice+maker+not+making+ice+youtube PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366042/normal_6006c8db7c343.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421200/normal_60650b85d6a42.pdfIn PDF document text
    • http://rupazaduxil.mywebcommunity.org/fun_multiplication_worksheets_grade_4.pdfIn PDF document text
    • http://fitademaluj.iblogger.org/citation_harvard_style.pdfIn PDF document text
    • http://fuzubijixulux.mygamesonline.org/angaaray_book.pdfIn PDF document text
    • http://duvejiwuxikon.getenjoyment.net/82835801110.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447916/normal_5fd7115636164.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/integral_de_x_arcsin_x2_dx.pdfIn PDF document text
    • http://forovasax.medianewsonline.com/35421491691.pdfIn PDF document text
    • http://kunepuvobimamin.medianewsonline.com/how_to_import_java_swing_project_in_eclipse.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://dc6b22d1-fd3c-476a-b8f1-b0505981f591.filesusr.com/ugd/ab5adf_271cc319bda04942ab0c6183c488218f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kujesulad/9243965102.pdfIn PDF document text
    • https://s3.amazonaws.com/tumuzu/three_paragraph_paper_outline_3_grade.pdfIn PDF document text
    • https://78bdfa25-736e-4945-a764-db21511aacb9.filesusr.com/ugd/9bd82e_02c23067431041a5aa785a17efd3d8c5.pdf?index=trueIn PDF document text
    • http://bupebubu.epizy.com/business_model_you_free.pdfIn PDF document text
    • http://mivazofirogo.epizy.com/simplification_questions_for_ibps_clerk_2020.pdfIn PDF document text
    • https://d451e762-8e00-4155-9971-9512d28d2528.filesusr.com/ugd/b52961_6de9ef904989463f9d4297a886819743.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/afro_beats_instrumentals_free.pdfIn PDF document text
    • http://sasuwirakib.rf.gd/stable_and_unstable_angina.pdfIn PDF document text
    • https://90ff81fc-98d9-4e53-96a3-aaa5c1c2042e.filesusr.com/ugd/bb5aff_da87dc4c92284f498d53ed0b7e33b4ef.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/21190339268.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/21606933599.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011c2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C2E 5452 bytes
SHA-256: d73fe5400ba534b8d0ae5f62a6d71b4d05e753d91dcda9adb5dbc299fff74b4e
font_01_sfnt_off00012ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EA3 11628 bytes
SHA-256: 77621dc4b6b400ff962be73e8abf5d3e1a93ff60a8b10ab63e700b7508b4b847
font_02_sfnt_off00015649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15649 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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