Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0875f517c241c54…

MALICIOUS

PDF

80.6 KB Created: 2021-03-15 03:43:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e58ebc74cec0a687abda98df6692761 SHA-1: 7fffce1f0d6d442fba7d5940f87da9b6112ee655 SHA-256: d0875f517c241c54ab6f07d91c1dd9f112a1ee2f0f435dc936f80fd9fb898102
156 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to potentially malicious or phishing sites, as indicated by the PDF_SEO_LINK_FARM heuristic and the ClamAV detection. The document body, though heavily obfuscated, appears to contain a lure related to 'pet rock osrs', directing users to a suspicious URL. The presence of multiple external links suggests an attempt to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://golowaki.ru/strik?utm_term=where+to+get+a+pet+rock+osrs
    • http://smotrikino.fun/busiwibimakanawekimakok03b.pdf
    • http://zolomakowifop.iblogger.org/how_many_calories_are_in_one_bean_burrito_from_taco_bell.pdf
    • http://everydayy.fun/playroom_furniture_ikea0r0o0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://12c9c681-cafc-4f88-93da-cb6f471fd49a.filesusr.com/ugd/f09a9d_71e22176310448b78ecf73d7f6ee5cd4.pdf?index=true
    • https://8d2868a3-57b7-484c-81f6-493c1c4f5daa.filesusr.com/ugd/a8ca0f_1db0a99f896c4b34adf9a659c10864d1.pdf?index=true
    • https://uploads.strikinglycdn.com/files/72e07a9f-8310-405f-8d38-afa1fcc0bf41/auto_warranty_forever_reviews.pdf
    • https://uploads.strikinglycdn.com/files/26a914fd-15bc-4a10-b59b-c338f95917fd/how_to_begin_an_aa_meeting.pdf
    • https://uploads.strikinglycdn.com/files/7180298b-a0da-4e76-98d6-828dc42a4736/zaguvibogogonolo.pdf
    • https://c931c956-7f53-4e4e-96dc-27d7f003ba63.filesusr.com/ugd/b80c10_ce68cdc7038c48e1bc0dc0f10b959fb5.pdf?index=true
    • https://2ffa788b-df2f-461f-b9c5-573bec542745.filesusr.com/ugd/374ce0_bf39476036ff4ec1acf788a026b20d87.pdf?index=true
    • https://uploads.strikinglycdn.com/files/d59af427-937f-4e37-ba10-0732870d7d95/what_are_the_samsung_galaxy_models_in_order.pdf
    • https://8d2868a3-57b7-484c-81f6-493c1c4f5daa.filesusr.com/ugd/a8ca0f_b955cea59c1940bd930dc95929e1ec73.pdf?index=true
    • https://uploads.strikinglycdn.com/files/bb68feb1-7843-4fe8-bede-916021cb5aa8/9937036822.pdf
    • https://uploads.strikinglycdn.com/files/35dced38-4255-4741-8960-41df8f3fc632/27390037240.pdf
    • http://famuruvif.epizy.com/carrie_a_estranha_em.pdf
    • https://4123e755-5e7e-4fb8-b167-49ba90d37259.filesusr.com/ugd/fd3290_8cd0fa1ebdf844bdacedf60dca933a17.pdf?index=true
    • https://44879a12-c10a-431c-a98a-7de142752d0f.filesusr.com/ugd/bb4607_c7015cdc5e5748ac85766e2d5fa7e8b3.pdf?index=true
    • https://uploads.strikinglycdn.com/files/574e5783-a285-4a11-b5ba-82402cadee69/how_to_clean_elite_air_fryer.pdf
    • https://7915398d-c9c2-4241-abdb-40cf742e4b8d.filesusr.com/ugd/d4df0f_c8d2489c8b544d02bca15436b0768e80.pdf?index=true
    • https://uploads.strikinglycdn.com/files/665982f8-7971-4d53-8ec1-4a14e6fc9182/farmall_h_for_sale_in_michigan.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efc5.bin
30704b4c15504c21ef0b643434848e032cc5b15865c829a67e3cef763768f34d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC5 4876 bytes
font_01_sfnt_off00010079.bin
b91bba3434fb828eb3380e6b3b8a9c942131c8038fe711aeb8dc24c032797256		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10079 11312 bytes
font_02_sfnt_off000126f6.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126F6 4324 bytes

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