Malicious PDF — malware analysis report

Static analysis result for SHA-256 aabb6c2c542bf6c5…

MALICIOUS

PDF

62.7 KB Created: 2020-04-24 08:13:04 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: b177c08bfb04c2abca2ae9d1492e9bd5 SHA-1: e6cb5290230bf5f062348e914571accfc112d9e1 SHA-256: aabb6c2c542bf6c510a3741093feccc042fd566833ed9197a347f2b5eb74cf0f
104 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many pointing to PDF files on various domains. This pattern is indicative of SEO poisoning or a link farm designed to host malicious content. The presence of a 'download button' heuristic further supports the idea that the document is intended to trick the user into downloading a file. No scripts were extracted, limiting the ability to determine the exact payload or execution method.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maeganprovan.com/uploads/1/3/0/6/130621462/130621462.html#dionysus+bts+mp4 PDF link annotation
    • http://deserteaglehousewatching.com/uploads/1/3/1/4/131413275/e0d0d3.pdfIn PDF document text
    • http://demasidomestic.com/uploads/1/3/0/7/130776420/saxitazakojunowo.pdfIn PDF document text
    • http://simixlaundry.com/uploads/1/3/0/3/130323928/ed16f.pdfIn PDF document text
    • http://www.goldencrownrealty.com/uploads/1/3/0/8/130874077/risitexu.pdfIn PDF document text
    • http://thekamancompany.com/uploads/1/3/0/7/130775268/tosevudimegawe.pdfIn PDF document text
    • http://vapeeco.com/uploads/1/3/0/6/130621715/raxafasowibozamas.pdfIn PDF document text
    • http://leisatimms.com/uploads/1/3/0/2/130291971/takaxojafujol_xobumedese_vazojepe_wovepab.pdfIn PDF document text
    • http://tenminuteinspection.com/uploads/1/3/0/5/130588333/7dbf7281fb4.pdfIn PDF document text
    • http://anon-gaza.com/uploads/1/3/0/2/130289638/povonuwamujet.pdfIn PDF document text
    • http://directors-collective-international.com/uploads/1/3/0/9/130969154/d10e5e40e42f9a.pdfIn PDF document text
    • http://rajadiveisland.com/uploads/1/3/1/6/131607477/0b4cee.pdfIn PDF document text
    • http://myspartansaver.com/uploads/1/3/0/4/130483348/759fe9b5a64de.pdfIn PDF document text
    • http://mathsme.com/uploads/1/3/1/4/131407514/2b0be8.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://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text

Related samples 1

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_off00008682.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8682 8396 bytes
SHA-256: 34e6d9b291ab79f6851cad4c58995ba6fcbe0c5aad4cba190e283d7cd1f5170e
font_01_sfnt_off0000a6e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6E8 24896 bytes
SHA-256: 5bb5c913b4f0067ad9f423267997d20e132815004f5b6b6a4aa5d21b661d740d

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