Malicious PDF — malware analysis report

Static analysis result for SHA-256 369eee42b2d0f341…

MALICIOUS

PDF

65.9 KB Created: 2020-11-22 07:29:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5937074a359f6675a1c58266ab25289a SHA-1: dfb9635e44ec90791fe383c8b64c0a7450938aff SHA-256: 369eee42b2d0f3415e6557891978129e068abcd28b66c24f07065ba817308ee4
186 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9998

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://trafftec.ru/123?utm_term=evergreen+lawn+service+duluth+mn PDF link annotation
    • https://viziwebaf.weebly.com/uploads/1/3/3/9/133999863/3109693.pdfIn PDF document text
    • https://rarikomedos.weebly.com/uploads/1/3/4/6/134616559/baseg_gavudepuxenowib_riloparatezi.pdfIn PDF document text
    • https://sibojigejediwij.weebly.com/uploads/1/3/4/6/134606131/3417030.pdfIn PDF document text
    • https://lowizozexide.weebly.com/uploads/1/3/0/7/130776176/juwol.pdfIn PDF document text
    • https://zulatikuwa.weebly.com/uploads/1/3/0/7/130776211/namozofe-mokedupuzujemag-rapazuxig-gemolidade.pdfIn PDF document text
    • https://dagigokes.weebly.com/uploads/1/3/0/7/130739756/2278369.pdfIn PDF document text
    • https://wefekexuse.weebly.com/uploads/1/3/4/6/134685634/popafizozesatin-zigumum-meriza-pedagedu.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/685990f0-de95-4dee-93c5-930f600c748a/waxonanolapakufezis.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/8991957246.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/binomial_distribution_table_full.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed20d7c5-8172-437e-b66e-069a7cd88dd9/6794922484.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb873b11-896c-4bd7-a40f-34ec1d227e30/vidulirugasuzonu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11733082-2ee5-4889-85a8-65c1e9e45371/gimogutadotegerunulewowek.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE12 5460 bytes
SHA-256: ffe1f17bc3abfa5efbf633feb8ce95ea5130faee2af4a178600b8bfd3e408ea8
font_01_sfnt_off0000c097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC097 10864 bytes
SHA-256: 0253faa8bf5115b5f30e048037ac71a636b0e0901314d868a156291fcd619cdc
font_02_sfnt_off0000e570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE570 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15

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