Malicious PDF — malware analysis report

Static analysis result for SHA-256 296d2bd0eb8c7abb…

MALICIOUS

PDF

91.2 KB Created: 2021-03-20 21:33:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 451732baac5ab7d502ad1a67a4b7d7e0 SHA-1: 7ab4fb6163af6dcf168422366ae6f400927e286f SHA-256: 296d2bd0eb8c7abb566db9db0aca8952c0fc3239bc3bd2013bb7aaec5806b2ea
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 0.9996

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://mezovuduw.ru/strik?utm_term=how+to+buy+just+dance+2020+on+wii+u PDF link annotation
    • http://wipalogazagak.22web.org/14243323366.pdfIn PDF document text
    • https://cdn.sqhk.co/kukisigafumi/j37HHxN/old_fashioned_arcade_games_near_me.pdfIn PDF document text
    • http://viwafuxofiseko.getenjoyment.net/41876729482.pdfIn PDF document text
    • http://vajukadezazi.getenjoyment.net/7293509027.pdfIn PDF document text
    • https://sebupemisopuba.weebly.com/uploads/1/3/4/7/134706320/702727bb3694.pdfIn PDF document text
    • https://zodemabu.weebly.com/uploads/1/3/4/8/134896511/mawepemezakumip.pdfIn PDF document text
    • https://xifexovajebim.weebly.com/uploads/1/3/0/7/130740184/vewotabotukirob.pdfIn PDF document text
    • https://cdn.sqhk.co/zozijawutuxu/ljvxzcV/mojivawuwenovofonufo.pdfIn PDF document text
    • https://cdn.sqhk.co/nujodusuwud/ehf6pgj/bcd_to_binary_conversion_in_8085.pdfIn PDF document text
    • https://taponoranasigem.weebly.com/uploads/1/3/4/6/134643922/pisujufakumol-temolakez-febinawuwig-miwet.pdfIn PDF document text
    • http://vovavipegum.getenjoyment.net/24344052477.pdfIn PDF document text
    • https://rusaxexuratibu.weebly.com/uploads/1/3/2/6/132680860/216f905.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zetiragala.epizy.com/top_annotation_apps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ceccc77-5d1d-446d-a595-e9d4bede8413/tipos_de_comunicaciones_escritas_en_la_empresa.pdfIn PDF document text
    • http://komoridetunitiw.epizy.com/siwajoloduxefagaw.pdfIn PDF document text
    • http://pajabajo.rf.gd/vokajari.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b010d69-ec39-4de9-9dfe-75c220afa145/what_the_best_laptop_for_small_business_use.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b57f2b99-9c4b-414b-849d-0651e04a1ee7/how_to_workout_at_planet_fitness_for_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e828cd1-8b70-4f10-82cf-40fe15ffcafb/dell_inspiron_6400_charger.pdfIn PDF document text
    • http://koxaxinum.epizy.com/oxford_dictionary_english_to_bangla_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc40a3ae-f083-4e4f-bd2b-79c19983d19c/lateral_thinking_questions.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC61 11892 bytes
SHA-256: 4475a1464c7c3257f64ecefc13b08b14b32bd3abf16ba79ac20e8ca0a6380227
font_01_sfnt_off00012319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12319 5452 bytes
SHA-256: 14f8f02eb0dc98e04e4aa2d8f324ee866b3830977fc224da9094b92cac535f5e
font_02_sfnt_off000135ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135CA 12480 bytes
SHA-256: 874635b8fc3ec8d0619e92da4e0f97325903e610d68ea55aac6b066803929a46

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