Malicious PDF — malware analysis report

Static analysis result for SHA-256 c864f3244efa3249…

MALICIOUS

PDF

76.6 KB Created: 2021-04-02 02:52:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0747de39b1eebc30f4a3100bb7a8b323 SHA-1: b08dea32396ddbbb95461eaa11aa3febabf93e17 SHA-256: c864f3244efa32499a3ac259405489d21346b04709b0a2336a9c7955db7f2433
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 0.9998

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://soxebez.ru/strik?utm_term=how+to+reset+a+panasonic+home+phone PDF link annotation
    • http://daburus.iblogger.org/lutosometepom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486051/normal_5fda8253520f7.pdfIn PDF document text
    • http://pexawegowe.mywebcommunity.org/57477510407.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458390/normal_6031b5f545ba0.pdfIn PDF document text
    • http://mibilivo.scienceontheweb.net/5621333235.pdfIn PDF document text
    • https://ximafirufiwazi.weebly.com/uploads/1/3/4/7/134755441/dd61a07df31c.pdfIn PDF document text
    • https://nasoluludeg.weebly.com/uploads/1/3/4/4/134435301/xuwerivewavu_kimidubajozu.pdfIn PDF document text
    • http://bafiselavanebep.mywebcommunity.org/53323297642.pdfIn PDF document text
    • https://naloxepakore.weebly.com/uploads/1/3/5/3/135391327/d913132.pdfIn PDF document text
    • https://rugibabolunape.weebly.com/uploads/1/3/1/4/131454120/sotaziximejox_giditekek.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472488/normal_5fc591e5d9b61.pdfIn PDF document text
    • http://dojijoxekomutax.iblogger.org/jibiselixarajosu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413590/normal_600fa7ebb25fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476436/normal_603e6ae5d80e9.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/eb638913-d03d-4c18-a3cd-7fc60ddc25e5/integration_of_cos_x_log_tanx_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03fe4677-6165-42ae-9f02-fb0a67411b00/budizifapixowul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f12f5d5-d6ce-4971-b0b9-9bbe245858a0/83167746580.pdfIn PDF document text
    • http://mabobubokinevo.epizy.com/musculos_agonistas_antagonistas_sinergistas_y_estabilizadores.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1eafdec5-7558-4859-8117-9e1af780c341/pve_sorcerer_build_dark_souls.pdfIn PDF document text
    • http://sijadogif.atwebpages.com/magazine_online.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_off0000ef1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF1D 5196 bytes
SHA-256: 63f61dbdb8bd00a43e106da75be87e7c52bb9e55194980396c0c182906e4e02e
font_01_sfnt_off000100ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100AB 10584 bytes
SHA-256: e0b25f5382ff021e97bbe33aff4aa1374204807f15dc2cee4194d13e25ac15e2

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