Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee693813f8def905…

MALICIOUS

PDF

76.3 KB Created: 2021-01-23 09:29:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 104dfcd9947b81622b6158e965d4fff6 SHA-1: abf2a4b80ade59ea0998e61a378434cae85d6d3b SHA-256: ee693813f8def905255d7acf2dd6eac4a11647fa407fbb38680123fbc37bbbac
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://leonvi.ru/aws?utm_term=free+jigsaw+powerpoint+presentation+template PDF link annotation
    • http://kelirajisob.66ghz.com/20168246437.pdfIn PDF document text
    • https://ratopavitakam.weebly.com/uploads/1/3/4/4/134460251/dagejewebef_furozegegu_burona.pdfIn PDF document text
    • https://cdn.sqhk.co/luxanimev/fgwakge/59133161365.pdfIn PDF document text
    • https://site-1191940.mozfiles.com/files/1191940/deductive_reasoning_examples_with_answers.pdfIn PDF document text
    • https://repotadidutu.weebly.com/uploads/1/3/4/3/134310826/mesefumovufare-rumupen.pdfIn PDF document text
    • http://kewavixim.22web.org/42924417384.pdfIn PDF document text
    • https://cdn.sqhk.co/josurowelimu/fA4kVih/twitter_dm_video_downloader_chrome.pdfIn PDF document text
    • http://lodixewovufosa.iblogger.org/gonokazurobokuze.pdfIn PDF document text
    • https://cdn.sqhk.co/tuledapozato/Bighfw3/railroad_crossing_2_apk_games.pdfIn PDF document text
    • https://cdn.sqhk.co/folamudoj/JGhbPib/baked_cod_lemon_pepper.pdfIn PDF document text
    • https://relodigiluburem.weebly.com/uploads/1/3/2/6/132681887/7930216.pdfIn PDF document text
    • https://kivalake.weebly.com/uploads/1/3/4/8/134885121/c3d08e7.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/rivazixexuguri/87060303888.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/87891371679.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/pearson_correlation_excel_template.pdfIn PDF document text
    • http://xotepugiz.rf.gd/minecraft_dry_hands_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/namitewodedij.pdfIn PDF document text
    • http://kopuperoki.epizy.com/wuguzanud.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_off0000ebbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBBE 5260 bytes
SHA-256: 606185c276155bf3e99067624ecf10e3a3c3895b0a5eace06ddf712ffa2fc9f3
font_01_sfnt_off0000fda9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA9 11172 bytes
SHA-256: 68b634154b909ac32a62a4ddb308069bbb411afcc6046c82502c6345e6b6129a