Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce2767983eadf5f6…

MALICIOUS

PDF

76.1 KB Created: 2021-03-20 00:41:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c7709e9804f427466103293e106716eb SHA-1: 22844dcd2034722df4c00d436ce0ef06c89cfa4d SHA-256: ce2767983eadf5f621741e1f056493d0b6ed209b6288e926ce6b45f34cc4c710
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a link farm, which is a common tactic for SEO manipulation or directing users to malicious sites. ClamAV detection and ML classification strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mezovuduw.ru/wix?keyword=bugbear+fighter+build
    • http://price-list.moscow/cinemark_imax_quito_ecuadorohnf0.pdf
    • http://indonesia2health.online/25034626215x2u9g.pdf
    • https://nexuragero.weebly.com/uploads/1/3/4/7/134751893/869706.pdf
    • http://filfex.ru/27822712868ezyms.pdf
    • http://select-get.top/firijofitulebukedezawoxe8qojm.pdf
    • http://summer-italy.fun/the_paper_trip_5f5bsr.pdf
    • https://xozijelotegog.weebly.com/uploads/1/3/5/3/135327018/efe2106.pdf
    • https://futiwetag.weebly.com/uploads/1/3/4/3/134367494/jetemixamamo_gutumadamak.pdf
    • http://pet-guru.shop/sofikaz94va.pdf
    • http://pihodze.com/234753909728i8kw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://2061f665-9309-41a6-981d-137229ee7e60.filesusr.com/ugd/eb2fe6_5181face8cf54cc0b5ec5ca7d08b7ac7.pdf?index=true
    • https://s3.amazonaws.com/zemunomipazikez/find_hidden_objects_app_free.pdf
    • https://3568ea06-17fa-4787-91ae-86b9aa918cbd.filesusr.com/ugd/8ade13_34b4a19917444fe59f2115a34aeeb64f.pdf?index=true
    • https://s3.amazonaws.com/wiremeresegikon/93815131346.pdf
    • https://s3.amazonaws.com/bajuse/zekefokipuji.pdf
    • https://6e37e838-c278-4d46-baa9-25b8497af200.filesusr.com/ugd/fbcb80_3245a92604da413fb05a1822f5826e4a.pdf?index=true
    • https://3e1d1bad-f645-4ebd-ac75-469e7ff7c972.filesusr.com/ugd/e745be_336df6d65849499a93e8d3d6472f18c6.pdf?index=true
    • https://s3.amazonaws.com/jefazaxal/67744980562.pdf
    • https://s3.amazonaws.com/mujesogi/solution_set_of_exponential_equation_calculator.pdf
    • https://s3.amazonaws.com/fizufapu/33237256205.pdf
    • https://s3.amazonaws.com/boxalewijim/ti_nspire_cx_cas_for_sale.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_off0000ed85.bin
5a114312ceb5dd39658d2fae3204e4e241f81ab84e0cde35f0f6b51f0eacd5ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED85 5180 bytes
font_01_sfnt_off0000ff25.bin
83915f9f3d33a3a2206c152268e98899d63310b1a261accadf92af9511b93dc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF25 10620 bytes

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