Malicious PDF — malware analysis report

Static analysis result for SHA-256 427104b620162aaa…

MALICIOUS

PDF

69.9 KB Created: 2020-11-14 03:52:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 511b1e99ecb7a94437f269c5baf09323 SHA-1: 1c03a5215ed23fa8591d58b05344ebc08c9e8e63 SHA-256: 427104b620162aaae404961c5e114f01208b0382377b8ddfe8d158a7a5c60040
162 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, traffmen.ru, which is disguised as a travel expenses form template. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded link suggest it's designed to redirect users to malicious infrastructure, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • 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://traffmen.ru/aws?utm_term=travel+expenses+form+template
    • https://cdn-cms.f-static.net/uploads/4373778/normal_5f95198e9bd9a.pdf
    • https://cdn-cms.f-static.net/uploads/4426820/normal_5fa34b13afe21.pdf
    • https://cdn-cms.f-static.net/uploads/4408881/normal_5f98ce623a8c7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/ruzaganog/costco_desks_home_office_furniture.pdf
    • https://s3.amazonaws.com/setaxilitozuko/storytelling_books_for_kids.pdf
    • https://s3.amazonaws.com/xukonakefules/nixesusoninaro.pdf
    • https://s3.amazonaws.com/gaxuremewuger/wancle_sous_vide_cooking_guide.pdf
    • https://s3.amazonaws.com/pazerogasarinu/bts_songs_lyrics.pdf
    • https://s3.amazonaws.com/bupijila/rekanokenojeperapinobo.pdf
    • https://uploads.strikinglycdn.com/files/9e0d1c79-30fd-4b70-9a0e-847645432fba/neoliberalismo_breve_historia_del_infierno.pdf
    • https://s3.amazonaws.com/vekodupiwarobi/23832460071.pdf
    • https://s3.amazonaws.com/xopugup/49995813930.pdf
    • https://s3.amazonaws.com/toliwudalamem/mokinekitawunowoziwesila.pdf
    • https://s3.amazonaws.com/donarepemi/78647969830.pdf
    • https://s3.amazonaws.com/tapexiw/adding_fractions_unlike_denominators_worksheet.pdf
    • https://uploads.strikinglycdn.com/files/b743aa9f-0adf-41b7-bf0d-511fe7420ca7/54408255405.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d67a.bin
ebaa4a27754a176386c999e0a8f1f103d0e7f6859a8597856bad3d04a78c45e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD67A 5124 bytes
font_01_sfnt_off0000e7da.bin
6dc863286981b2f24f9ac03bfc955755fecc94e9342bd9b40ae5c672f8d3fe34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DA 10108 bytes

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