Malicious PDF — malware analysis report

Static analysis result for SHA-256 b04926d6b4e9b8fd…

MALICIOUS

PDF

85.3 KB Created: 2021-03-03 01:57:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0eb2a550999320093514c5be3338c330 SHA-1: edaa88f0504613d0cb8e33607c1871723f79211d SHA-256: b04926d6b4e9b8fd5e1da895ae804ef271327ba7fd885ed5922278b5a5751fce
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/wix?keyword=atomic+structure+unit+review+answers PDF link annotation
    • http://xawegap.mywebcommunity.org/juzobawepodogivemometuxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375515/normal_5fe6cc9a3911f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401697/normal_6038bd97c9367.pdfIn PDF document text
    • http://jivavesomuviz.getenjoyment.net/rikebupavoxudalegunemediv.pdfIn PDF document text
    • https://dubibezu.weebly.com/uploads/1/3/1/4/131453247/nonavalarekatu.pdfIn PDF document text
    • https://ruxodinari.weebly.com/uploads/1/3/4/3/134377607/4112892.pdfIn PDF document text
    • https://lavovozanu.weebly.com/uploads/1/3/0/7/130739022/4314997a60.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456999/normal_601548ff9ae04.pdfIn PDF document text
    • https://xivunububan.weebly.com/uploads/1/3/0/9/130969166/9021568.pdfIn PDF document text
    • https://velonifiwivuli.weebly.com/uploads/1/3/0/7/130739758/ca323ee811c2.pdfIn PDF document text
    • https://bewirupudafa.weebly.com/uploads/1/3/1/6/131607000/ff47b0.pdfIn PDF document text
    • https://sipexagugiresu.weebly.com/uploads/1/3/4/6/134607427/4404848.pdfIn PDF document text
    • http://lidlid.xyz/3859114286l9uln.pdfIn PDF document text
    • http://perfectiona.online/honeywell_programmable_thermostat_manual_rth230bcaai2.pdfIn PDF document text
    • https://xikewewojan.weebly.com/uploads/1/3/4/0/134095915/zuketeg_tiviluxokituj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/97901893410.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/you_don_t_know_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/zukeledu.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_off000113bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113BB 5052 bytes
SHA-256: 611c4bef48a39edccf8739e4af61384474a4d1d0ab9450f22af5ca5832dc6726
font_01_sfnt_off000124e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124E4 10300 bytes
SHA-256: 04b0de19fed516618b5b72afc648d15eabe5dcef38360e7bfa41e639084e3b00