Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bc9fdc2a0cf49a3…

MALICIOUS

PDF

69.3 KB Created: 2021-03-17 05:18:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 38f56076197ea9148ca3be08a6096b92 SHA-1: 75fd7e57098bd5dddc840d0de46dc078c91db941 SHA-256: 2bc9fdc2a0cf49a3767ab921a5815d6290ec6ae17eb03bfe211af872f5489880
186 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. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially harmful websites. The presence of a URL with a 'utm_term' parameter related to product searches further supports the phishing or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://soxebez.ru/strik?utm_term=philips+50+inch+smart+tv+price+in+philippines PDF link annotation
    • https://cdn.sqhk.co/boxadiweteve/pjaIjeg/baana_kaathadi_tamil_film_songs.pdfIn PDF document text
    • https://tivepikilusu.weebly.com/uploads/1/3/4/7/134759048/1b07fe19c14ada.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411683/normal_5fd783204615d.pdfIn PDF document text
    • https://vuwuzujos.weebly.com/uploads/1/3/2/7/132712237/vifusirubi_lanad_lobarigab_rexalisibexezit.pdfIn PDF document text
    • https://kenuzoba.weebly.com/uploads/1/3/4/0/134017938/db08e2545c.pdfIn PDF document text
    • https://cdn.sqhk.co/baxoladipezu/4RjeWje/se_dice_in_spanish.pdfIn PDF document text
    • https://cdn.sqhk.co/sewadokoka/aeifhdE/80396389525.pdfIn PDF document text
    • https://cdn.sqhk.co/miloxuso/r6hjkLy/jebaxenutigopero.pdfIn PDF document text
    • https://cdn.sqhk.co/sadetujadufi/hcGhghc/9274123581.pdfIn PDF document text
    • https://vovowiki.weebly.com/uploads/1/3/2/3/132303124/c5a35f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460045/normal_5fd1c0ffa6224.pdfIn PDF document text
    • https://xelegiri.weebly.com/uploads/1/3/4/4/134435730/popida_megexezu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376088/normal_6015c4fc23342.pdfIn PDF document text
    • https://cdn.sqhk.co/nidebuwe/jeifBhe/52760988375.pdfIn PDF document text
    • https://cdn.sqhk.co/vetelovube/jfifria/kazixupelewezarizobili.pdfIn PDF document text
    • https://cdn.sqhk.co/lifudidu/1h9Ihby/pisavisokox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420260/normal_600a26d7f1f28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475863/normal_602a1d641ab03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379498/normal_5fd0b98c3d563.pdfIn PDF document text
    • https://cdn.sqhk.co/pevelefotuve/5hbWjaM/8578059608.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496824/normal_604e3b2e18064.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d29b41e-6006-4e3a-b8c5-fa389527fb0c/ruger_sr9c_size_comparison.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7889a53b-e50f-4fb9-b218-322ca1a84af1/30932993343.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/264d1b4f-97b5-4a17-ac7b-0ee22b773882/how_to_find_the_margin_of_safety_in_dollars.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD283 5500 bytes
SHA-256: ab0c855efa6376ef59d5bc7058c9fd16b02ad4e7059f1e537adc6cef602fc970
font_01_sfnt_off0000e516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE516 10440 bytes
SHA-256: 12971e9e24c73262fce7b686c76c061545d468673f9e4d710e4c2aba75d56a40