Malicious PDF — malware analysis report

Static analysis result for SHA-256 147add6125633662…

MALICIOUS

PDF

73.8 KB Created: 2021-03-17 06:26:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 5adee6f5d355fc42bf2894958564feb7 SHA-1: 11ad1484230519e20afe2efdae234e09a9dc1cc3 SHA-256: 147add6125633662417e4e270f6eef9acb873b8926b6afcd4222daf134949ba8
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, characteristic of a link farm or phishing campaign, with one URL specifically mentioning 'bayonetta highly compressed'. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan. Although no scripts were explicitly extracted, the PDF structure and the presence of many external links suggest an attempt to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/123?utm_term=bayonetta+highly+compressed PDF link annotation
    • https://cdn.sqhk.co/putuziboki/ijdcchh/offroad_truck_climb_legends_2.pdfIn PDF document text
    • https://cdn.sqhk.co/jaguwubax/hjgjggg/majijapele.pdfIn PDF document text
    • https://xuremesedadewo.weebly.com/uploads/1/3/4/5/134500919/pirewoli.pdfIn PDF document text
    • https://pefemodadiz.weebly.com/uploads/1/3/4/5/134520562/2543687.pdfIn PDF document text
    • https://jupuwova.weebly.com/uploads/1/3/1/4/131409597/3d84acd9a.pdfIn PDF document text
    • https://wimelavejitovuv.weebly.com/uploads/1/3/4/5/134597731/kuzamilazoxuroguni.pdfIn PDF document text
    • http://forajadafogaxuv.medianewsonline.com/mituzeza.pdfIn PDF document text
    • https://voganesabif.weebly.com/uploads/1/3/1/1/131163538/dapop.pdfIn PDF document text
    • http://narovomesizi.medianewsonline.com/kulimetogixexifozijefu.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/mogedozara/71831731489.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/autoimmune_hepatitis_appraisal_of_current_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/creative_cloud_won_t_photoshop.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/bluetooth_software_for_laptop.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/31321627936.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71b9be05-3db2-4155-b7b8-1cb21bf3d2b6/hp_laserjet_1536dnf_mfp_color_toner.pdfIn PDF document text
    • http://vejegaba.atwebpages.com/temperament_compatibility.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/how_to_make_a_wire_tree_of_life_dreamcatcher_tutorial.pdfIn PDF document text
    • http://jikelaxapexa.onlinewebshop.net/internet_of_things_devices.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b64a901-2536-450f-a67e-62aad75dd555/top_5_penny_stocks_in_india_2021.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f11e5476-64c5-4ef7-bc65-6749075d1246/non_destructive_tester_salary.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_off0000e302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE302 5636 bytes
SHA-256: 3bcbba9b55773ebaa827f460ea7820e1b91ca52ca507626aaae2cc1eb953b60f
font_01_sfnt_off0000f609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF609 10588 bytes
SHA-256: 1132fccff1d798e618445b41958383193ce3acd10d6d89bc80e064713e300a46

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