Malicious PDF — malware analysis report

Static analysis result for SHA-256 17ea8c6ea00ef9e4…

MALICIOUS

PDF

40.2 KB Created: 2020-11-06 06:03:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 39d202885d1202e9ef9cdf7974560835 SHA-1: e8a913cefc46db9fea41a0fb8976b898490d240c SHA-256: 17ea8c6ea00ef9e4aa19075054ac402e764e970a5e43efed645a1efb0944aef4
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous external links, with one identified as a potential SEO link farm. The primary malicious URL, 'https://traffnew.ru/123?keyword=stream+avatars+streamlabs+obs', suggests a redirection or phishing attempt. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious intent to direct users to external, potentially harmful, content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://traffnew.ru/123?keyword=stream+avatars+streamlabs+obs PDF link annotation
    • https://sizojupitad.weebly.com/uploads/1/3/4/3/134332657/f2533b98fbbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384633/normal_5f92ed3de7c55.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/4e0d994f.pdfIn PDF document text
    • https://folemazilepi.weebly.com/uploads/1/3/1/1/131164248/begijof_puwefoluxib_rinutolij.pdfIn PDF document text
    • https://bawujepal.weebly.com/uploads/1/3/4/5/134515469/surosibozomofebol.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/8ef36525-844c-4c24-bc15-a881cce81734/gargoyle_dnd_5e.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9e3fd17-6480-4267-83b8-337c8303db44/adobe_premiere_rush_android_apk_cracked.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/waninugarezek.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/ffxiv_hud_layout_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/88815879098.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/jelly_truck_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/cinema_hd_movies_apk_ad_free.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_off00005ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECC 5132 bytes
SHA-256: 8df0a1d124cd1c61f3eb6a085bcbc6a455eaef3d87227aa533e4a6bb316ba894
font_01_sfnt_off0000702a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702A 10604 bytes
SHA-256: 2e2be18618e78debf0788e3ccd04f413be20c76bb9f87855dea11c165b94db1f