Malicious PDF — malware analysis report

Static analysis result for SHA-256 64e0faf077494e14…

MALICIOUS

PDF

73.2 KB Created: 2021-02-11 14:18:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: d2f1c248badbcfa1d79596add64efde3 SHA-1: a83ee4e454e9297d86795910c1f9392acc0a1bde SHA-256: 64e0faf077494e1436e0fd19fd28d8dacbda160a2e4518cd6dd10d0541881274
186 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to disposable domains and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or a scam. Although no scripts were explicitly extracted, the PDF structure and numerous external links suggest it's designed to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/wix?keyword=feeding+racing+pigeons+before+race PDF link annotation
    • http://prognoz-football.club/6722306221mu56b.pdfIn PDF document text
    • https://vonepegoparopew.weebly.com/uploads/1/3/4/3/134352316/f148d.pdfIn PDF document text
    • https://poxejoretojav.weebly.com/uploads/1/3/4/7/134740271/kisefikeloga.pdfIn PDF document text
    • https://cdn.sqhk.co/takularozo/gjdjggc/ringtone_making_app_for_iphone.pdfIn PDF document text
    • https://poxobavu.weebly.com/uploads/1/3/1/4/131453713/sosavedimixizaju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375353/normal_5feaef2d34173.pdfIn PDF document text
    • https://kiparefewegapip.weebly.com/uploads/1/3/2/6/132682538/popuzonegava.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450048/normal_5fe6243cd0c76.pdfIn PDF document text
    • https://jowatewiko.weebly.com/uploads/1/3/1/3/131380225/7036793.pdfIn PDF document text
    • https://poxatekegevu.weebly.com/uploads/1/3/4/7/134753674/0391ca83c651ee.pdfIn PDF document text
    • https://vukojudal.weebly.com/uploads/1/3/5/3/135317211/a0b250844a24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471969/normal_6022ab372bf93.pdfIn PDF document text
    • https://nuxowodevuj.weebly.com/uploads/1/3/4/6/134609076/dokugimuwuloru-jemasivanirax-kunugokuwosulu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464734/normal_5fed567dd3178.pdfIn PDF document text
    • https://dawekemukodo.weebly.com/uploads/1/3/4/4/134491409/762025.pdfIn PDF document text
    • http://fsbsiod.com/61002802525bcvdx.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_off0000e239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE239 5384 bytes
SHA-256: 5f2b62d07036c47782c195804d8d53bd03ca4bd9608ced22e92bceab0480a6c9
font_01_sfnt_off0000f495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF495 10240 bytes
SHA-256: e9d162330f71c853c0e55026db58936bdf3ca9488c51cac8a669aeb54460eca0

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