Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bee589fc2423983…

MALICIOUS

PDF

75.5 KB Created: 2021-05-07 02:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 833c8d12c76e402db25396706c441bd9 SHA-1: 57154a050cffba7f7ec795354d822a585ee9f6b0 SHA-256: 2bee589fc2423983a72a3544fb8c187981b321ba1f6d39fe2b4f92635e073844
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment 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 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/strik?utm_term=is+ahsoka+in+the+mandalorian+season+2+trailer PDF link annotation
    • http://dietnatur.fun/338335284426ihlu.pdfIn PDF document text
    • https://cdn.sqhk.co/mofokamibe/2jgichf/drum_pad_machine_free_no_download.pdfIn PDF document text
    • https://cdn.sqhk.co/tejilunuf/cjdhcvp/64450815184.pdfIn PDF document text
    • http://meetchambre.xyz/alesis_micron_patches_downloadon3nt.pdfIn PDF document text
    • https://cdn.sqhk.co/lodoseduler/N3tibYY/kajebawadedela.pdfIn PDF document text
    • https://cdn.sqhk.co/detatakev/bX4yiTo/casino_slots_open_near_me.pdfIn PDF document text
    • https://sutikarojujo.weebly.com/uploads/1/3/4/3/134343437/8994098.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/Vgj2Xnd/vogoparamopegujaxi.pdfIn PDF document text
    • https://cdn.sqhk.co/xejexeremiso/tje4hgH/colour_changing_apple_light.pdfIn PDF document text
    • http://magarunu.iblogger.org/43569686676.pdfIn PDF document text
    • https://cdn.sqhk.co/ragejeli/LCgeiji/49992991592.pdfIn PDF document text
    • https://cdn.sqhk.co/wigalefu/hqgefhd/13115834834.pdfIn PDF document text
    • https://cdn.sqhk.co/mukibusu/ejfz5hd/global_smartphone_market_share_2020.pdfIn PDF document text
    • http://flowerport.store/49536813493q6nlu.pdfIn PDF document text
    • https://medadafamu.weebly.com/uploads/1/3/0/7/130775854/zamabiwelu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xisubux.epizy.com/dovafituxovemepibojuluro.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB6F 5196 bytes
SHA-256: a229425c9f8c13b46a7333c7f3afbbe985c3e1a4e726f0ae8c26aa8b653d17ef
font_01_sfnt_off0000fcec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCEC 10660 bytes
SHA-256: f7bab86a42fd52b68a842ac381f3d34d8fa3fd125f958e6511277f61978a76cd

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