Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff3990a21d98fc3c…

MALICIOUS

PDF

72.2 KB Created: 2021-03-01 10:15:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fc200cbc054e8646cb98eb5d927a64b1 SHA-1: 7fc85f81967bf4d6300d20ba6c85f5a1d0e47809 SHA-256: ff3990a21d98fc3cf9fde0c97fb320ab0c127abcac366d644a16295d8a4da93e
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

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 0.9596

Heuristics 4

  • 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
  • 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/award?keyword=fe+exam+study+material PDF link annotation
    • http://lapitubemexidi.mywebcommunity.org/the_singer_2017_ep_10_eng_sub.pdfIn PDF document text
    • https://cdn.sqhk.co/tizesefetus/gicia8s/49742184347.pdfIn PDF document text
    • http://gajaxujifusokul.mygamesonline.org/naxezenalipoxamum.pdfIn PDF document text
    • https://cdn.sqhk.co/definuseju/haighj0/89166357582.pdfIn PDF document text
    • http://hdsamara.ru/algebraic_fractions_adding_and_subtracting_worksheets6bxo7.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/ghyDMZK/hustle_castle_cheats_android.pdfIn PDF document text
    • https://cdn.sqhk.co/xovinexesun/gjGHhiq/zadixawofogutozadogosi.pdfIn PDF document text
    • https://cdn.sqhk.co/nadipozow/fgfkier/36785778735.pdfIn PDF document text
    • http://magnifioco.site/3149564502mscm8.pdfIn PDF document text
    • http://jugezew.22web.org/minions_banana_remix_ringtone_pagalworld.pdfIn PDF document text
    • http://timecodes.net/evidence_of_evolution_worksheet_middle_schoollofio.pdfIn PDF document text
    • https://cdn.sqhk.co/leruwexikud/gchaC4y/movie_prime_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/nosilaxuziz/pCiePjb/vojepisifotifanaruwive.pdfIn PDF document text
    • http://safijejog.mygamesonline.org/how_to_use_ridgid_wet_dry_vacuum.pdfIn PDF document text
    • https://cdn.sqhk.co/nilesatu/hf2xhgI/simon_the_sorcerer_2_25th_anniversary_edition_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/xopuxuvop/hM4RUE6/microsoft_office_365_sharepoint_online_certification.pdfIn PDF document text
    • https://cdn.sqhk.co/tamaladafa/eLohcK1/retroarch_android_cores_location.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dogirajuwuxo.epizy.com/ford_mustang_mach_e_price_list.pdfIn PDF document text
    • http://jitawidavez.atwebpages.com/18561719458.pdfIn PDF document text
    • http://kurivixudenetiw.epizy.com/nutozubixizitix.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF446 5096 bytes
SHA-256: 8e0c6a0de27e8284528efce81aa7f51de9cac16e45a9f08fed32404c758a3bac

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