Malicious PDF — malware analysis report

Static analysis result for SHA-256 07f96aa9b39ab03d…

MALICIOUS

PDF

82.1 KB Created: 2021-03-25 15:11:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: a3acc17e34a34b7c269598442c23583f SHA-1: 5698a50b1d1dee94d8952f199b1a912db739b51b SHA-256: 07f96aa9b39ab03d686e21ef533fcf83c046674da41ca2344b92dd7fecdda9bb
126 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, and contains numerous external URIs. One prominent URI, 'https://dugedepap.ru/wix?keyword=what+i+know+for+sure+pdf+free', suggests a lure to download content, likely for phishing or malware distribution. The PDF structure also exhibits characteristics of a link farm, further supporting a malicious intent to redirect users to potentially harmful sites.

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://dugedepap.ru/wix?keyword=what+i+know+for+sure+pdf+free PDF link annotation
    • http://urro-hu.com/samsung_security_camera_wiring_diagr6jiy5.pdfIn PDF document text
    • https://cdn.sqhk.co/kisunika/Phavgjk/daytona_beach_racing_and_card_club_hours.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/jhdCAjh/product_marketing_manager_jobs_near_me.pdfIn PDF document text
    • http://nikibolerobika.getenjoyment.net/balewugisibolomen.pdfIn PDF document text
    • http://yatvoyya.fun/witexaravopojajzdv37.pdfIn PDF document text
    • https://cdn.sqhk.co/modesarox/gfhgTdm/project_drift_cars_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/retugatodof/gOighhy/48136900779.pdfIn PDF document text
    • http://tronreserve.online/masixupivodepejeteurrw7.pdfIn PDF document text
    • http://pek-24.cc/37259841604np3d8.pdfIn PDF document text
    • http://jejunobu.iblogger.org/ragotopo.pdfIn PDF document text
    • http://pugorot.mygamesonline.org/avoir_et_etre_au_present.pdfIn PDF document text
    • http://rexonina.medianewsonline.com/big_boss_oil-less_air_fryer_recipes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1c4d8cc-2f06-4fcf-92c1-f23dc2180362/john_g_lake_teaching_on_healing.pdfIn PDF document text
    • http://wumupufavagavoz.epizy.com/dokovuzaboxakiburap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3427949-9c5e-444c-bfa8-fcbb2adc9e77/liwaginatigipem.pdfIn PDF document text
    • http://begupegag.epizy.com/fixox.pdfIn PDF document text
    • http://wivowutone.epizy.com/nalomosavokanubusugodef.pdfIn PDF document text
    • http://ziwivazud.onlinewebshop.net/2017_can_am_outlander_570_service_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7682bfc0-473a-416a-9825-7317fb0f9eda/66277055108.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/bedusineve.pdfIn PDF document text
    • http://gezixus.myartsonline.com/wotis.pdfIn PDF document text
    • http://zekubegem.epizy.com/begotu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be3f908f-4c89-40ba-9f9b-8d281764f234/jewimimukifidomiboluza.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/4993858817.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d78d153c-8702-47d7-b652-8f22014a030e/west_bend_bread_maker_recipes.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_off0001041b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1041B 5264 bytes
SHA-256: 4397476a14eb8cf1ef040b5accc88eb88dbaef681b4debb43cc784aa7947ef11
font_01_sfnt_off00011619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11619 11004 bytes
SHA-256: 62c5e08e6d05481d41ef321802a0abff86619758d3cad15e814a5b4c4d6ecb1e

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