Malicious PDF — malware analysis report

Static analysis result for SHA-256 359a625fc6ec695a…

MALICIOUS

PDF

121.9 KB Created: 2021-03-22 13:32:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 16cd0113082df412288085d234fd6ddb SHA-1: 71b48dd6ad1001db8614d72e781eb63abc591a49 SHA-256: 359a625fc6ec695a7c4fb7bb4a46e2e27392da2e132b5367c675b0e62a575a42
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'jottigo.ru', which is likely a malicious domain used to host phishing content or distribute further malware. The document body, though heavily obfuscated, contains text related to 'revelation' and the wkhtmltopdf tool, suggesting a lure to a website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/aws?utm_term=what+are+the+symbols+in+revelation
    • http://help-copyrighteamservice.com/how_long_does_a_pressure_cooker_take_to_cook_a_roastmp80y.pdf
    • http://drive4mclaneeffingham.com/samsung_xpress_m2825dw_laser_printerfcbw7.pdf
    • http://giwitijudaleka.mygamesonline.org/bhagwat_geeta_in_hindi_chapter_11.pdf
    • http://wepilulejupikok.22web.org/90896076998.pdf
    • https://cdn.sqhk.co/xolokenuw/hg72jgd/zelugebelebavowepafaxe.pdf
    • http://belplitka.ru/what_is_the_best_trigger_weight_for_hunting4mj73.pdf
    • http://espaceabone.com/7849966620221h9x.pdf
    • https://cdn.sqhk.co/wogefosa/5Jkgdhf/fofinuletuwalemawesejiker.pdf
    • http://bibopasaxuvibu.mypressonline.com/barnett_vortex_youth_compound_bow_specs.pdf
    • http://bukenisefino.mygamesonline.org/logunemexepodadevel.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/744b428f-1060-49dc-856a-e998941d429e/85963477215.pdf
    • http://detuzojezil.rf.gd/pawugalederutoborof.pdf
    • https://uploads.strikinglycdn.com/files/b8aa5dc1-c99a-4eda-9098-a1cc87a2c072/el_coronado_ranch_az.pdf
    • https://uploads.strikinglycdn.com/files/91987903-a3be-4b5e-bdc9-bf518cfca4ab/bifakafuparot.pdf
    • http://pomewiwap.rf.gd/xilagonomanibofe.pdf
    • http://vuxujakovonad.epizy.com/ruvanaxipup.pdf
    • http://vilulew.rf.gd/adaminaby_weather_report.pdf
    • https://uploads.strikinglycdn.com/files/f26b384a-a32a-4d1b-a2bb-4fe274635274/the_adventures_of_tom_sawyer_chapter_24_summary.pdf
    • https://uploads.strikinglycdn.com/files/44c9421d-ef53-4457-8b62-de88c7c303b1/94912230374.pdf
    • https://uploads.strikinglycdn.com/files/376e0e86-efe2-45bc-a9ef-ff72e6f46920/zadiromigusobiti.pdf
    • https://uploads.strikinglycdn.com/files/f50f8b6b-ba3d-4c63-aa1c-5702c8786a93/91340668192.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00019fc5.bin
36f48699929b9bc3e821f7c775e322691f2e03f39edf4cd107076bcc34c83a4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19FC5 5240 bytes
font_01_sfnt_off0001b17e.bin
ffae1f462a7a7105d2940beb9b483914119558f1ae3e7288f5cbe162f8566386		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B17E 11144 bytes

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