Malicious PDF — malware analysis report

Static analysis result for SHA-256 03276fde8af4687e…

MALICIOUS

PDF

86.3 KB Created: 2021-03-20 06:10:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: f7a7780653ea5c2b1dfba4dc40cb0284 SHA-1: b6f28d7dfd829dab8c94bc7942606feba5910fc8 SHA-256: 03276fde8af4687e529addf024d032094084bc6eb493006fca24871df409b085
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely used to deliver a payload or conduct phishing. The document body, though heavily obfuscated, suggests a lure related to a 'Sony str-dh810 receiver', aiming to trick users into visiting the malicious URL.

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://dugedepap.ru/strik?utm_term=sony+str-dh810+receiver PDF link annotation
    • https://cdn.sqhk.co/rosisole/gHjcgeI/wuvaminetit.pdfIn PDF document text
    • https://cdn.sqhk.co/jidevumedure/n8gcBst/amazon_fire_stick_mirroring_iphone_without_wifi.pdfIn PDF document text
    • https://cdn.sqhk.co/loberutebe/fidd1Ft/new_york_city_rent_guidelines_board_increases.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369168/normal_601f106d6ff9d.pdfIn PDF document text
    • https://cdn.sqhk.co/wejafivelij/Lidjiji/viniv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496015/normal_60011b0209bc0.pdfIn PDF document text
    • https://cdn.sqhk.co/kafexobesa/0raizDw/movie_theater_taft_st_hollywood_fl.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/jesidofefe/cartoon_video_songs_for_baby_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/indian_movies_2017_punjabi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37bc2dad-fb4d-4815-b4d5-1396c4c37584/asus_router_rt-n12_default_login.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/crontab_day_of_week_format.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/beautify_xml_formatter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddba8c9f-dd34-4344-97d6-17f83e39f192/45059416324.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/vupodupodezudomix.pdfIn PDF document text
    • http://mapiwenasadig.rf.gd/ubuntu_18._04_installation_guide_in_malayalam.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/32761550999.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/12825758061.pdfIn PDF document text
    • https://s3.amazonaws.com/jotogorurekuro/dizuv.pdfIn PDF document text
    • http://vipezexazagi.epizy.com/latex_example_document_report.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_off000107a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107A0 5256 bytes
SHA-256: 3e4290881313a570e59488be6bf2f07f04e8a5ac5d9027bd6b59f298f3ce65f9
font_01_sfnt_off00011988.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11988 10528 bytes
SHA-256: 5bfb50e1a48571ddf62b89e17fdc1d05ea861bca4e9493d66d200d5e8a6bf3a5
font_02_sfnt_off00013db9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13DB9 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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