Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f3f6029008ab958…

MALICIOUS

PDF

70.7 KB Created: 2021-04-02 09:00:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 50571ed3a1ca57ada514e0c8891524fa SHA-1: 1e46b4ec5e0b64bd79714ccc694432679539b09e SHA-256: 3f3f6029008ab9581ebfde8e2da0c298a35531b5284963b1112d6f59b7b79b52
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ponafet.ru/wix?keyword=handless+millionaire+2+hacked+unblocked PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381320/normal_605d758e68054.pdfIn PDF document text
    • https://cdn.sqhk.co/bataseset/vfHQzhb/gukugudadoxadimin.pdfIn PDF document text
    • https://cdn.sqhk.co/dukosisevu/igjgBid/minecraft_mods_1._16._1_mac.pdfIn PDF document text
    • https://vunisanege.weebly.com/uploads/1/3/0/8/130813420/kunawivorit_guzuworod_kuzozil.pdfIn PDF document text
    • https://cdn.sqhk.co/dumotometapo/3KhaOjd/expanse_book_series_reading_order.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412377/normal_604cd5eb18166.pdfIn PDF document text
    • http://lnstagramsecurity.net/rikejamotegulugulavakedepl83b9.pdfIn PDF document text
    • https://zabagazepag.weebly.com/uploads/1/3/4/4/134498959/5955102.pdfIn PDF document text
    • https://cdn.sqhk.co/weruvewo/e6MAgiT/fojupugogige.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390057/normal_6017775b49698.pdfIn PDF document text
    • https://luwimaxilonava.weebly.com/uploads/1/3/4/7/134772317/lijojaxafupo-mabezeno-xotubelusut-pokuz.pdfIn PDF document text
    • http://haustova.com/my_boo_virtual_pet_apk_downloadkbhpw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421466/normal_5fccf78eca482.pdfIn PDF document text
    • http://kwini-fini.online/aixa_vazquez_edad_biografia_de_seana7dxn.pdfIn PDF document text
    • http://agreevudb.rest/arbys_menu_prices_fish_sandwichcvnjh.pdfIn PDF document text
    • http://dostafood.xyz/555153318050t2qq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e216d865-ddc7-438b-99b2-64609380b1bb.filesusr.com/ugd/7ae8b3_01e1f82ee1c1467eb95d0e7eb5d12cc3.pdf?index=trueIn PDF document text
    • http://mezifaxura.rf.gd/logic_and_boolean_algebra.pdfIn PDF document text
    • https://b1c30c75-ab46-439a-884d-3836ae4b8a49.filesusr.com/ugd/2d1648_cc24cc2e1eea478b94d7a377984bb99f.pdf?index=trueIn PDF document text
    • http://zelibigevuloxuj.epizy.com/american_english_file_4.pdfIn PDF document text
    • https://efa91360-7c21-416c-9d60-3189e0beb381.filesusr.com/ugd/42ffc7_411b6b1d23a54650b14e3719876c4897.pdf?index=trueIn PDF document text
    • http://nezenomawaza.epizy.com/wuwejuvizodujotexaxe.pdfIn PDF document text
    • https://8ca15cf9-c5bf-4329-906a-32df3c7b5ab7.filesusr.com/ugd/4ca7f5_6805401437f748d495c8e3dc57a442a5.pdf?index=trueIn 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_off0000d6f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F9 5476 bytes
SHA-256: d8f2bb2bf0f28282bb5b66dc684127ed621b2a0de24fd6e772f476b544760944
font_01_sfnt_off0000e967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE967 10468 bytes
SHA-256: f31f2b584c2ef6a231b7c5057c581cc73c10e85ace83b2c34ed3bf800878bc4b

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