Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e0126a0ec97fb57…

MALICIOUS

PDF

70.1 KB Created: 2021-05-02 01:45:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 5cdb9aa046eaa3303c9bf52c45530885 SHA-1: 7af74bb49ec13124109e68b122b833ce233a6dc9 SHA-256: 4e0126a0ec97fb57e64467910e04a24ddbbe1fa0ab748b85f4222af01ce573a3
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one prominent URL pointing to a suspicious domain that appears to be part of a link farm. ClamAV detection and ML classification strongly indicate malicious intent, specifically identified as a phishing trojan. The document's content, though heavily obfuscated, suggests a lure related to a 'Honeywell vision pro 8000 programming manual', likely to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://dugedepap.ru/strik?utm_term=honeywell+vision+pro+8000+programming+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4476288/normal_5fe4629e84895.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478947/normal_5fe7c9dd70105.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461219/normal_602e1fc35d745.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470209/normal_604ec2629613a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367268/normal_5ff283842613e.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/dekogamik/definicion_de_organismos_coliformes_totales.pdfIn PDF document text
    • https://9610c43f-1b2a-4a8a-b660-75aaf3908198.filesusr.com/ugd/286fb8_b51faf47b78c4f5da84cdbee2bb83ddb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/epson_wf_2630_printer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49119fe8-baeb-44fb-a0cf-324a42739ce8/98249211010.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf78b80e-4dbb-4816-ac75-a5dd9414b92b/how_to_learn_to_trade_stock_options.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/muleniradezigizaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1061fcd9-0f13-47d1-b0ee-12dedf3b5da2/78202569557.pdfIn PDF document text
    • https://s3.amazonaws.com/numunenoji/dead_or_alive_5_ultimate_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd2b1e31-5b87-4e28-bb66-1673fd5a8bc8/what_does_unresolved_trauma_look_like.pdfIn PDF document text
    • https://f37c3615-20b0-4e70-b1e7-2acf34113780.filesusr.com/ugd/1e533a_a3bb04f3f5014f1f941b0d5433f0a409.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/7375152975.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/172ca32b-f0d5-4e8e-93b6-2c10dc36a74e/how_to_use_plantronics_voyager_legend.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/is_shadow_and_bone_good.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/dakerifixibudo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d486cbec-024c-4173-aae3-c3dacf5d8d15/singapore_math_dimensions_2a.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/best_file_recovery_software_for_android_phone.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_off0000d16b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD16B 5692 bytes
SHA-256: 8986e09cb16738a95f4fc8a34065718a4da8136914084f93f1083127b7a33ed8
font_01_sfnt_off0000e4cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4CD 10816 bytes
SHA-256: 3e7817fb16bb223090a2fef2f0b05f0b0c66691112b9200a4bd8ed9f547c29f1

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