Malicious PDF — malware analysis report

Static analysis result for SHA-256 c82dc4857f01de30…

MALICIOUS

PDF

76.1 KB Created: 2021-03-20 23:04:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: c30f94b0866a86a605e4772f81e6ff6d SHA-1: 16916cededb23adff066030f8dc3f3e35a520fc0 SHA-256: c82dc4857f01de3001fffec5b058681c2d902b8862018587e7991309860a603d
126 Risk Score

Malware Insights

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

The PDF contains numerous links to external domains, with one prominent URL being `https://ponafet.ru/123?utm_term=bose+soundlink+mini+ii+bluetooth+manual`. The heuristic `PDF_SEO_DISPOSABLE_LINK_FARM` indicates a high number of distinct hosts and links, suggesting a coordinated effort for malicious purposes. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

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://ponafet.ru/123?utm_term=bose+soundlink+mini+ii+bluetooth+manual PDF link annotation
    • http://kimidenexikox.getenjoyment.net/5609432187.pdfIn PDF document text
    • http://titoto.xyz/434490446469ycq0.pdfIn PDF document text
    • http://dkshlyap.ru/simple_past_affirmative_form_of_regular_verbszhnl1.pdfIn PDF document text
    • http://jarobadut.22web.org/cambridge_primary_checkpoint_past_papers_2020_english.pdfIn PDF document text
    • http://temppicture.xyz/vb6_date_format_checkgi6f0.pdfIn PDF document text
    • http://simcars.ru/sonixowm6aw4.pdfIn PDF document text
    • http://padapup.iblogger.org/tuvazatesibinogilil.pdfIn PDF document text
    • http://ourfanz.com/72281132798nyq0u.pdfIn PDF document text
    • http://zijafanovidiz.sportsontheweb.net/dijonifewosapu.pdfIn PDF document text
    • http://nomenowunesazoz.scienceontheweb.net/what_does_christianity_say_about_divorce_and_remarriage.pdfIn PDF document text
    • http://napodosawukezob.getenjoyment.net/how_to_use_lg_inverter_direct_drive_dishwasher.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/statistical_models_in_s_chambers.pdfIn PDF document text
    • https://878ee1be-828d-48b9-a24a-84283cf66a1c.filesusr.com/ugd/86936c_5ba0d5e1091d43e4acd1da3f40260233.pdf?index=trueIn PDF document text
    • https://ad843f61-c544-48d7-8cfb-3c048b9edb46.filesusr.com/ugd/0dd9ed_f78c9e1fb9354379afab4df9374192c2.pdf?index=trueIn PDF document text
    • https://32b33340-d9da-4ef7-b3bd-a0ac5134eb71.filesusr.com/ugd/adfa6f_3d925e22c5a5418bb9a0d16e2ffed927.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/paropabaru/chaupai_sahib_path.pdfIn PDF document text
    • https://69669160-cc20-42a3-bfef-e1e1fd1f8163.filesusr.com/ugd/8094a4_cbf66ab32ae7471da4860b8e5d193c05.pdf?index=trueIn PDF document text
    • https://98350ace-7ac4-4f38-a9d9-579fdad8050b.filesusr.com/ugd/9b2d9b_74893b2987fb4ed59dbff6f39e2fc2d0.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gusule/pokemon_black_and_white_2_guide_book.pdfIn PDF document text
    • http://dalotidel.epizy.com/dirk_gently_season_1_episode_guide.pdfIn PDF document text
    • https://3f46bf15-0a8c-4e80-b3e5-a2e3bf90e008.filesusr.com/ugd/8e6e76_38bad1b4aa86405cb0ee1388960f9553.pdf?index=trueIn 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_off0000e9ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9AB 5224 bytes
SHA-256: f1319b6c53bc48ad7b128f75cf2599b4ba73a25df46803e80f5f9ac715a358fc
font_01_sfnt_off0000fb43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB43 11188 bytes
SHA-256: 6f939967878e758fdfa030084cf92198a7174c86a45c8fe07f6e513c1a55653e

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