Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5ce3965f2f75cdf…

MALICIOUS

PDF

76.5 KB Created: 2021-02-18 14:17:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d10ebf319c89656d891237da2184f0cd SHA-1: 207c48cc1bac2928139787d4e2529fd85af1e71e SHA-256: d5ce3965f2f75cdf75004eaa98c7a6be2f5ffde0595c283d030242025f249e6d
154 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 routes users through malicious redirector infrastructure. 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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/wix?keyword=can+we+justify+the+implied+powers+of+congress+worksheet+answers In PDF document text
    • https://cdn.sqhk.co/kimefutif/ifygdie/nibugowibi.pdfIn PDF document text
    • https://cdn.sqhk.co/fokofike/4A22rie/dell_power_media_player_download.pdfIn PDF document text
    • https://cdn.sqhk.co/merabuvi/DBiddlg/merge_racer_mod_apk_terbaru.pdfIn PDF document text
    • http://therarbooks.com/pin_diode_based_fire_sensor_downloadz5zta.pdfIn PDF document text
    • https://vobinuxidixuf.weebly.com/uploads/1/3/4/4/134471365/bibuzufid_vugebevefunasa.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/jaggnDw/c_tutorial_point_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/lidumezuvir/ogczmvk/car_battery_jump_start_power_pack.pdfIn PDF document text
    • https://jerolukemotib.weebly.com/uploads/1/3/0/8/130874115/6891437.pdfIn PDF document text
    • https://tukuboxux.weebly.com/uploads/1/3/4/5/134510407/3521753.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://s3.amazonaws.com/zusevamasor/53507222248.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/freenas_ftp_setup_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/what_are_some_would_you_rather_questions_dirty.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_off0000e083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE083 5808 bytes
SHA-256: fcc95b06dea00d77024f65777a466f2495a7c495408293a76c66fb39b9910dba
font_01_sfnt_off0000f43d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF43D 10024 bytes
SHA-256: 5234e38e0502d6ec0792d7b21d8990f7a32935e7f6818758cb153a548548269e
font_02_sfnt_off0001169d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1169D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

Open this report in the interactive analyzer, or submit your own file for analysis.