Malicious PDF — malware analysis report

Static analysis result for SHA-256 467195afca5643f0…

MALICIOUS

PDF

65.1 KB Created: 2021-01-13 22:49:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 36b30ecfd1c48290537680658f234c2f SHA-1: 0b9c0796b00fb378656cce5ad6f03c1148b90f2f SHA-256: 467195afca5643f0b5843758d8b42e5f2f1f8f5e1b5f2d578e1f048de1ec207b
164 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, suggesting a link farm or phishing campaign. The presence of a 'download button' lure further supports a malicious workflow, likely involving the distribution of further malware or phishing content via the embedded URLs.

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.
  • 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 https://trafftec.ru/123?utm_term=everett+housing+authority+change+of+circumstances PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365575/normal_5f87099ad4f4c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410722/normal_5f95a378e0b5c.pdfIn PDF document text
    • https://mikudone.weebly.com/uploads/1/3/4/3/134370159/1b7758a.pdfIn PDF document text
    • https://gesefamuredoxuk.weebly.com/uploads/1/3/4/6/134631359/jirazo.pdfIn PDF document text
    • https://pivozedotafi.weebly.com/uploads/1/3/1/0/131070355/25bc0524621.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458404/normal_5fad747d35033.pdfIn PDF document text
    • https://cdn.sqhk.co/mikevoponage/jdNThfj/modern_warfare_season_6_subway_map.pdfIn PDF document text
    • https://cdn.sqhk.co/fukefipemuw/iidjaem/missiles_in_cuba_problem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448328/normal_5fb780e0e6116.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446937/normal_5fff1045bbfce.pdfIn PDF document text
    • https://vesukinixemijuw.weebly.com/uploads/1/3/2/6/132696016/xozejabis-sofiro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460042/normal_5fbd83e459732.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2EA 5384 bytes
SHA-256: b3e375300b3cf995c4162065dd6a569b46f5d5e7b301a2106df04924a5ecc40e
font_01_sfnt_off0000d52a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52A 10112 bytes
SHA-256: 53fba58e63d6a13ed3dd4a1114d603adfb17937daf63fc41782c25f51d447302

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