Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb84e0369b9ddf8f…

MALICIOUS

PDF

80.3 KB Created: 2021-06-01 19:53:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 3aa98cb7f3c8e463bf871010d55b547e SHA-1: 547c2d4b32340238f54fa715ecc404a094e14593 SHA-256: eb84e0369b9ddf8fd47c87b84ffcdfe0c8a7144f7d991deb19bf54681144d9c6
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://cructi.ru/pbw?utm_term=antony+beevor+stalingrad+pdf+chomikuj PDF link annotation
    • https://narodejezagog.weebly.com/uploads/1/3/3/9/133988416/vamadirafakemem.pdfIn PDF document text
    • https://tesitibu.weebly.com/uploads/1/3/4/7/134712385/8618825.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484635/normal_601c7c3b16ee9.pdfIn PDF document text
    • https://lotagixowila.weebly.com/uploads/1/3/1/1/131164100/xenuteb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496372/normal_604494b55aa50.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sizolasipape.pbworks.com/f/42246010898.pdfIn PDF document text
    • http://xojifot.pbworks.com/f/borneo_motors_accident_reporting_centre.pdfIn PDF document text
    • http://gatasulupu.pbworks.com/w/file/fetch/144411927/google_scholar_profile_criticism.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67450508-45b3-4e4b-abb0-b62c1f537bde/el_sueo_de_una_noche_de_verano_resumen_corto.pdfIn PDF document text
    • http://moxulolo.pbworks.com/w/file/fetch/144452151/28468917345.pdfIn PDF document text
    • http://finebov.pbworks.com/f/53397127162.pdfIn PDF document text
    • http://jajafad.pbworks.com/w/file/fetch/144427800/xakazep.pdfIn PDF document text
    • http://xutosop.pbworks.com/w/file/fetch/144440031/technic_launcher_cracked_download_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5aff6d0a-d48a-4376-ae16-ba5efd457cc8/what_was_the_iron_curtain_and_how_was_it_a_factor_of_the_cold_war.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cba1e1cb-f5d9-43c3-b281-ca890306e144/58440499163.pdfIn PDF document text
    • http://buvavipoluvu.pbworks.com/w/file/fetch/144424446/41790920659.pdfIn PDF document text
    • http://wejojixi.pbworks.com/w/file/fetch/144423687/fidelity_net_benefits_phone_number.pdfIn PDF document text
    • http://fevawigo.pbworks.com/w/file/fetch/144420627/pitch_perfect_2_full_movie_free_download_for_mobile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ccb7b50-2f9d-42bf-8929-7278d08fcf04/binitafowabonisafutif.pdfIn PDF document text
    • http://jijagenaneke.pbworks.com/f/55533794414.pdfIn PDF document text
    • http://kufujibumufa.pbworks.com/w/file/fetch/144413937/how_to_write_a_30_day_notice_to_vacate_property.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_off0000eec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC4 6000 bytes
SHA-256: 5dea6fd86e571411caf7ee0dc87b47dd8c74f6d755860fef1776212f73efb4f4
font_01_sfnt_off0001030d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1030D 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off00010b9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B9A 13092 bytes
SHA-256: 8ffa02280a8a2530f654237a86215a1403504d1c7e09088ffb020698cbb586be

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