Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e1007fce6dd38e2…

MALICIOUS

PDF

92.5 KB Created: 2021-03-19 00:42:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 54bbfe75ae83c562c844faacdd695a2f SHA-1: 1a0debdaa2b4a65e9b8c225e9d0cac888130d39f SHA-256: 0e1007fce6dd38e264cd2ba64f21f32832cfa60d8cc4a00b86a8bf3f9a00bf27
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 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

  • 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://xezojetit.ru/wix?keyword=unblocked+games+77+gunblood+western+shootout PDF link annotation
    • https://tuvopezape.weebly.com/uploads/1/3/4/7/134712323/7972239.pdfIn PDF document text
    • https://simebofes.weebly.com/uploads/1/3/1/4/131438459/gelepafi_nusarezunena.pdfIn PDF document text
    • http://tuwosip.iblogger.org/nitracion_de_acetanilida.pdfIn PDF document text
    • https://dalosetog.weebly.com/uploads/1/3/1/4/131412235/lesakujejilavanosole.pdfIn PDF document text
    • https://gakefutafo.weebly.com/uploads/1/3/0/7/130739004/4480696.pdfIn PDF document text
    • https://dunegigamirusa.weebly.com/uploads/1/3/1/4/131437715/4973837.pdfIn PDF document text
    • https://xoxigukot.weebly.com/uploads/1/3/4/8/134861038/subajop.pdfIn PDF document text
    • https://tupakebu.weebly.com/uploads/1/3/5/3/135308645/4887253.pdfIn PDF document text
    • https://jerijumewatopod.weebly.com/uploads/1/3/5/3/135330781/6b61bca3.pdfIn PDF document text
    • https://xuzubakew.weebly.com/uploads/1/3/0/9/130969304/jusenoxuleloxa.pdfIn PDF document text
    • https://zaloposigino.weebly.com/uploads/1/3/0/7/130739621/898e93c71327833.pdfIn PDF document text
    • http://pexijub.iblogger.org/koxaruzepakok.pdfIn PDF document text
    • https://fevufimekosiso.weebly.com/uploads/1/3/1/1/131164497/turosuta-jodubab.pdfIn PDF document text
    • https://soxajerufoxizas.weebly.com/uploads/1/3/4/8/134880654/6d9df37e6314.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e0d8ad0-629a-4c4b-961a-6772ba7c5c08/fusuwe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16b8c985-49ce-489b-8009-0a4d895f9107/jegudebezenine.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/xoxekiza.pdfIn PDF document text
    • http://kavakino.epizy.com/bissell_steam_cleaner_model_1383.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/sony_xplod_500w_4_channel_amp.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/how_to_wash_sunbeam_electric_throw.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012b10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B10 5720 bytes
SHA-256: e4854db55f85ae46f4a5b68359ba5dcf2a639d54bda75236f18a85b445707878
font_01_sfnt_off00013e78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E78 11208 bytes
SHA-256: 32c2147987f7f190a4ff3321652af4c8ff1f6c8050ce16f87128a8493f2a35d1

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