Malicious PDF — malware analysis report

Static analysis result for SHA-256 cde86cdfa9cfa679…

MALICIOUS

PDF

38.0 KB Created: 2020-04-17 15:04:00 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 1904dc1697f3f15293c1f7dbfe5dd4b0 SHA-1: 898c89dedaeda52e8c4ad4ee9a65a93dc75a401b SHA-256: cde86cdfa9cfa679f651128bc752658c1b6f8a685d527a9812fb28f16a377f77
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which are structured as SEO-friendly URLs pointing to PDF documents. The heuristic 'SE_INVOICE_LURE' suggests a fake invoice or payment lure. The presence of numerous external links, combined with the lure, indicates a likely attempt to redirect users to malicious content or phishing pages. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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 http://capefearforge.com/uploads/1/3/0/6/130620637/130620637.html#2016+auditor+general+report+ghana PDF link annotation
    • http://beaufortvacationrental.com/uploads/1/3/1/4/131407021/goxusowob_kinuk.pdfIn PDF document text
    • http://woutervandermaden.nl/uploads/1/3/0/6/130605217/tutokejo-vodosiduzu.pdfIn PDF document text
    • http://aguayoperformance.com/uploads/1/3/1/1/131164081/985895.pdfIn PDF document text
    • http://incomparablelove.com/uploads/1/3/0/5/130589381/8617022.pdfIn PDF document text
    • http://theyvibe.com/uploads/1/3/0/6/130603942/ef05d3a30251e.pdfIn PDF document text
    • http://keywordsmostsearched.com/uploads/1/3/0/7/130738704/lixatejogosowu-vusigodofogazub-tetali.pdfIn PDF document text
    • http://jtscleaningservices.com/uploads/1/3/0/3/130379133/ac12d5b.pdfIn PDF document text
    • http://guerssports.com/uploads/1/3/1/4/131455543/07719f9bd.pdfIn PDF document text
    • http://artisanduluxe.com/uploads/1/3/0/5/130550789/kidak-mubazajes-gerilovonofab-vegatuz.pdfIn PDF document text
    • http://51startnew.com/uploads/1/3/0/9/130969639/4493899.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn 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_off000061c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C1 7964 bytes
SHA-256: a6b931b81d0e33fa0b2ba9e13a206ddcfe362280ecd02b0877f3ce006acf8b0f
font_01_sfnt_off000080a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80A7 2652 bytes
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea

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