Malicious PDF — malware analysis report

Static analysis result for SHA-256 db0ce87cde5a2f6d…

MALICIOUS

PDF

74.1 KB Created: 2021-03-30 05:18:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0afe77b529f2224f5ae08989570804fb SHA-1: 5718816efacb0672233ebebf5d618fd045db5d33 SHA-256: db0ce87cde5a2f6d06b032fd492746b31063934092de38882e88c94fa1a1efef
96 Risk Score

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 0.9998

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://dafemum.ru/wix?keyword=roblox+exploit+gui+script+pastebin+2020 PDF link annotation
    • http://difanitukovu.mywebcommunity.org/low_calcium_foods.pdfIn PDF document text
    • http://gagivukamuw.getenjoyment.net/baxekeg.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nununad.myartsonline.com/bless_the_lord_chords_g.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/pakukatuvovuwomises.pdfIn PDF document text
    • http://kesolimasakifi.myartsonline.com/detowime.pdfIn PDF document text
    • http://wepikupovug.myartsonline.com/kevoduzoporodifavenuwa.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/bowflex_xtl_assembly_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/10474593553.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a133302-6a05-49f7-9a8f-1a39ac885663/guitar_barre_chords_chart.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7276fb1-c405-43b1-82ca-74759e5afe83/1623467949.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/sample_accomplishment_report_in_math.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/47156475455.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/jijaneboluwikolanawole.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/35968557836.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86f60fa1-73d3-4bcd-9a7b-4dedf8286d86/reziwesoxow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24d9a437-2897-4b9a-8135-473ffebf0b2e/38885561046.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/vomexena.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_off0000e58f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE58F 5588 bytes
SHA-256: 1034c3819cf670d6c063e3255efc87808deef685ee92e78773eb41731924d8cc
font_01_sfnt_off0000f8ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8AB 10264 bytes
SHA-256: 2e4ff9f62be802a8a563baf49b09f3524d5dd8c50ca8431a3a75075e569ca78e