Malicious PDF — malware analysis report

Static analysis result for SHA-256 46a0239a52d887e5…

MALICIOUS

PDF

86.6 KB Created: 2021-04-15 03:00:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9df7d4fd99c79634874d7eb8c52fe8df SHA-1: 9f7d938737c5d9bda94e7c3f3e041cde758e6328 SHA-256: 46a0239a52d887e54d9186d6b98e10a4e665af35754bfd45c86f65d547b1f400
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 0.9997

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://xezojetit.ru/strik?utm_term=chrono+trigger+snes+cartridge+ebay PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384295/normal_606452463fc47.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451352/normal_5fef1746daa4a.pdfIn PDF document text
    • http://insurancesouk.com/husky_2_gallon_air_compressor_home_depot0fybe.pdfIn PDF document text
    • http://invitesistem.ru/katibemululoluxajamexbliya.pdfIn PDF document text
    • http://tohld.in/damibiviwa5dssb.pdfIn PDF document text
    • http://wowitaly.pro/zombie_mode_pubg_mobile_gonea2vgn.pdfIn PDF document text
    • http://azorocheat1.xyz/english_grammar_exercises_bookdw326.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462344/normal_6057ab85614ab.pdfIn PDF document text
    • https://cdn.sqhk.co/foropogajag/cfhjijg/pioneer_arc_app_ios.pdfIn PDF document text
    • http://sberpodarok2020.online/what_is_a_normal_crp_blood_test_readingr82xr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448744/normal_5fc7408bbb544.pdfIn PDF document text
    • http://opit.space/homedics_clock_radio_sound_machine_manualiloxl.pdfIn PDF document text
    • https://cdn.sqhk.co/felodunom/yshefie/xipusi.pdfIn PDF document text
    • http://cetly.xyz/wikenewekefesuo5be.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wasalesex.epizy.com/sheet_metal_joggle_tool.pdfIn PDF document text
    • http://tamefizorala.epizy.com/emulator_android_untuk_pc_ringan_pubg.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE8D 5316 bytes
SHA-256: e7ad5c056323aa51fd8df36ae0f55f529eb615061e700dc6330188d01f7ae934
font_01_sfnt_off0001109e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1109E 11600 bytes
SHA-256: 9fd6b983eaa4ae5023124ae42f597bb2d44a9d12d78c0a05be6564f207d6c10f
font_02_sfnt_off00013866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13866 16076 bytes
SHA-256: acee84d401d99fa9e67e096d8f575b11785273ecb6d8cf1d3ded70165e385fb0

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