Malicious PDF — malware analysis report

Static analysis result for SHA-256 9865734e9b34d63b…

MALICIOUS

PDF

83.1 KB Created: 2021-03-11 05:16:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: ff88176ec7917eeb880ee2974b275f93 SHA-1: 1b5a4ce97e806d06fd8dbcc4fa22228ed92eb044 SHA-256: 9865734e9b34d63b375b4fdf44f5db8ebf5f1f72ebe61bcb4c61e4fe9f24a60c
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to potentially malicious or phishing-related content, as indicated by the 'PDF_SEO_LINK_FARM' and 'PDF_URI' heuristics. The ClamAV detection and ML classifier also strongly suggest malicious intent. The embedded URLs are likely used to redirect users to phishing sites or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://midufefew.ru/wix?keyword=que+es+tener+un+don+de+dios PDF link annotation
    • https://cdn.sqhk.co/wimedizi/jgfhiij/bomb_chicken_wings_near_me_order_online.pdfIn PDF document text
    • http://reduslim-italiaoficial.site/68706081234h9nte.pdfIn PDF document text
    • https://cdn.sqhk.co/gitovera/Q8jfRgg/57351314682.pdfIn PDF document text
    • https://bawilawuvibowe.weebly.com/uploads/1/3/4/4/134401702/vekujagurikegebadaf.pdfIn PDF document text
    • https://nekazexupogufeg.weebly.com/uploads/1/3/1/4/131454238/nulum-tibutoner-nuredulow-fawaga.pdfIn PDF document text
    • https://nedidibizexoba.weebly.com/uploads/1/3/0/9/130969065/poguliz.pdfIn PDF document text
    • http://ionatr.fun/details_of_gstodsxh.pdfIn PDF document text
    • http://wisecredit.info/microsoft_online_cover_letter_templates1h3zm.pdfIn PDF document text
    • https://todukikezigegu.weebly.com/uploads/1/3/4/3/134359798/549a6a3ce7c5.pdfIn PDF document text
    • http://save50it.info/why_doesnt_my_gas_stove_stay_lits3yl4.pdfIn PDF document text
    • https://cdn.sqhk.co/nogawevorus/djhgiBz/pufokila.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/rutufokedizon/august_2019_calendar_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/43182471211.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/babipowuvida.pdfIn PDF document text
    • https://486bfeb6-87d8-40a3-812f-3449909c9139.filesusr.com/ugd/81b904_3b1573f5f65a44be8d8c9bc5c196f6f7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/vakujawijebepozefupevemix.pdfIn PDF document text
    • https://6acf0ca1-aa41-4771-8b91-54baff69ee7f.filesusr.com/ugd/7d1dc9_34d5f6ce3b7f46e9b6d42971c0c81456.pdf?index=trueIn PDF document text
    • https://f579be4a-c2ec-451d-94ee-532237c06880.filesusr.com/ugd/9f6a24_d6da272419be45a9a366653e1c78f7a5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/memobofilenabon/does_adding_crystal_light_to_water.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/the_crown_netflix_season_4_rotten_tomatoes.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/99009095980.pdfIn PDF document text
    • https://441768bb-9839-4df4-8f78-dd1233b527f6.filesusr.com/ugd/7e6080_ff424b5de073469a872141bf98643980.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/33446262976.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/51689289882.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/rawavizexisegaterat.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_off000103ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103EA 4636 bytes
SHA-256: bbc59390142787bf97415c51058b2cae3f5e04fa3e6f677cc113150f62a33818
font_01_sfnt_off000113ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113BA 13220 bytes
SHA-256: 2e5a2dc33c5852025849713ff16c432a68e4244e3ded318d74478437480a1db1

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