Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e44be9ef1b4eb12…

MALICIOUS

PDF

67.0 KB Created: 2021-02-25 19:44:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a6dd3ef1ce7eb7b79dd670fc786f31ab SHA-1: eb4ac1363f8000352e386e44405d0193b6462cb5 SHA-256: 6e44be9ef1b4eb12826bd49d96f826b306e4f210440f50e376706e57b6aa56b4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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://druttle.ru/award?keyword=diary+of+a+wimpy+kid+books+amazon+india PDF link annotation
    • https://kuxaxamolexude.weebly.com/uploads/1/3/4/8/134869233/8639605.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467561/normal_601f40c599027.pdfIn PDF document text
    • https://vafarisitoguv.weebly.com/uploads/1/3/0/8/130874489/c4394ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480182/normal_60225a07db4cd.pdfIn PDF document text
    • https://wugarusuxota.weebly.com/uploads/1/3/0/8/130814120/tuzaxojupuxig_jadajiduv.pdfIn PDF document text
    • http://tosefabebiribow.scienceontheweb.net/vajeburagadimenu.pdfIn PDF document text
    • http://pigigozoruda.mypressonline.com/26308417435.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368976/normal_6033914f3e329.pdfIn PDF document text
    • http://vipadobotisituz.mygamesonline.org/the_andromeda_strain_2008_part_2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413975/normal_5fff466507a9c.pdfIn PDF document text
    • https://lanudoda.weebly.com/uploads/1/3/2/3/132303217/4836025.pdfIn PDF document text
    • http://gawuguvososu.iblogger.org/xozivefejetudufizux.pdfIn PDF document text
    • http://ranixora.iblogger.org/63768348871.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407576/normal_6027491feff67.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zarazemudaseri.epizy.com/immunization_exemption_form_ontario_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/wisoxiwojifapis.pdfIn PDF document text
    • http://pujumek.myartsonline.com/62300060765.pdfIn PDF document text
    • http://kalilom.epizy.com/boori_bassinet_sheets.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_off0000c997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC997 5604 bytes
SHA-256: 875ce3f9511bfaa21956bb638a224958b1ded097ca8fd5e849158f98e64f3064
font_01_sfnt_off0000dcb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB3 9996 bytes
SHA-256: e5a198d83614c4abb6d900e5e4ab09f802cd68c159cd6a68fcfc5900c365f4a2