Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef674cccceedab6…

MALICIOUS

PDF

69.5 KB Created: 2020-12-23 16:39:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 302308c65cb9f2193ae433948d5e2adf SHA-1: 30415062ce248ec2b5b1a3f40b9689732e706ac4 SHA-256: 0ef674cccceedab6a32ac5e7f0ba5b955a61420757dbba89033350135eb700fc
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains a large number of external links, many pointing to Weebly and other hosting services, suggesting a link farm designed to distribute further malware or phishing content. The embedded URL 'https://traffking.ru/strik?utm_term=planet+pizza+menu' and the document's deceptive "Planet pizza menu" title are likely lures to trick users into visiting these malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://traffking.ru/strik?utm_term=planet+pizza+menu PDF link annotation
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/42600e821e8.pdfIn PDF document text
    • https://luxapojago.weebly.com/uploads/1/3/4/3/134327771/lofugimimu_diwofuvedet_rupuv_zajakewurobug.pdfIn PDF document text
    • https://cdn.sqhk.co/babakobesuxe/y0ibigg/zajunelebamubug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372753/normal_5f9b2e801c399.pdfIn PDF document text
    • https://pevigegokepos.weebly.com/uploads/1/3/4/3/134366184/a651e70f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385020/normal_5f97342b83c2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404723/normal_5fab15a9b000e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gewuwasi/25144584871.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/dudujewu.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/chemical_kinetics_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/senivomiwofafaxuw.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/tavefiziwid.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC633 4512 bytes
SHA-256: cae6ba7f1a528acb2c3fad357e17b38681e843431e51bf7a73f821aac0887bdd
font_01_sfnt_off0000d570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD570 11260 bytes
SHA-256: a9149d3320483211217298fd171270d0d69ddd0de184f4de2ade6857312382d6
font_02_sfnt_off0000fb7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB7B 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378