Malicious PDF — malware analysis report

Static analysis result for SHA-256 4897e46c2e0a7ed9…

MALICIOUS

PDF

70.6 KB Created: 2021-02-13 07:44:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: eb72ec78d27504df6daa295ea5d560e1 SHA-1: 1923721cb1b021431a6a1de791a3d695ddb70039 SHA-256: 4897e46c2e0a7ed94818a0fe1a20e8d7fc62aec8ee7b83273d359ad87d18abd0
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to deliver a malicious payload or redirect the user to a compromised resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=works+cited+example+online+sources PDF link annotation
    • http://golomashvanna.xyz/42435692324d30mi.pdfIn PDF document text
    • https://cdn.sqhk.co/kegufamop/LhaMhfH/get_in_shape_at_home.pdfIn PDF document text
    • https://cdn.sqhk.co/busosuwik/Xgf9t7D/jesasagasexururibid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381531/normal_5ffaeec1f0bf6.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzefoke/hgcT2jd/4345174443.pdfIn PDF document text
    • http://helpforteam.com/ethical_hacking_seminar_ppt_freemeepr.pdfIn PDF document text
    • https://cdn.sqhk.co/bobavijiwoba/fTifChi/22960210318.pdfIn PDF document text
    • http://freshka.fun/zetitufonobuleiiati.pdfIn PDF document text
    • https://cdn.sqhk.co/migazajigum/l2gi1k6/55440769336.pdfIn PDF document text
    • https://cdn.sqhk.co/dasewugiru/1ULwjdz/kovoridikumunelojimixabo.pdfIn PDF document text
    • https://cdn.sqhk.co/lokovipazal/bhfygdF/halloween_nail_art_designs_2019.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/ropidadegaxut/tick_symbol_images.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/corrugated_cardboard_sheets_pretoria.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/fibre_cement_sheet_cladding_installation.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/87126174770.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/44379888766.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_off0000d887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD887 5364 bytes
SHA-256: cdd7beaea962607a8ba61977e3b8f1a76f04ad6d8407c1a40ccc5fc1462ceae3
font_01_sfnt_off0000eac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC3 10016 bytes
SHA-256: 97129c810e479d1818958f2e5bf00e8802d52a9d5ef3f439a7c0a185f01fcf1e

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