Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed073cd2ba9dd362…

MALICIOUS

PDF

74.8 KB Created: 2021-03-06 04:57:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: e713ffb1782fbcc7db219cf272ef448a SHA-1: 26208f08a4ff35eda38bc7799c7d15913ca61112 SHA-256: ed073cd2ba9dd362ec367c20fe20a7fd238d4454fb8a457d0e344ef57c72d345
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV, indicating malicious intent. The document body, though partially corrupted, suggests a lure related to a common search query, directing users to external URLs. The presence of numerous external URIs, many hosted on disposable domains, points towards a phishing or link-farming scheme designed to redirect users to malicious content.

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://xajibur.ru/strik?utm_term=where+is+the+reset+button+on+my+logitech+keyboard PDF link annotation
    • https://cdn.sqhk.co/tesikotuk/hb4iege/hot_rod_kit_car_uk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464056/normal_5ff05cee71791.pdfIn PDF document text
    • https://cdn.sqhk.co/bodevoposuji/c8lhgqk/loxulitosupinozixisi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386073/normal_6037f55fb48ee.pdfIn PDF document text
    • https://zabagazepag.weebly.com/uploads/1/3/4/4/134498959/zitam-xolodigafut-dapejunowikalar-lazororisukitaw.pdfIn PDF document text
    • https://bawigadumifop.weebly.com/uploads/1/3/4/4/134494387/punago-wagigupotedo-bakufod-lazomuzol.pdfIn PDF document text
    • http://pumujavebedopa.iblogger.org/career_path_sample.pdfIn PDF document text
    • https://mozipode.weebly.com/uploads/1/3/1/4/131437967/ec8f368a0bc13e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474989/normal_6009db66058cd.pdfIn PDF document text
    • https://cdn.sqhk.co/sesumaku/gjHSIgc/54649537038.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kodosalepixalan.epizy.com/android_file_transfer_windows_8._1_usb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7af60ff7-e7b0-4854-b1ad-b6cb1f899cbf/24744066029.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2896cfac-bee3-4b59-9a32-8f72fe1d8d1b/46906375882.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26acfac6-9347-44af-8449-f5e1de28c574/vitivinogakigenimos.pdfIn PDF document text
    • http://sinamalamukin.epizy.com/avon_anew_lash_transforming_mascara_serum.pdfIn PDF document text
    • http://dofumexuvit.epizy.com/what_are_all_the_animals_that_hibernate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19a744ae-cd9d-4224-b07d-bb9deed5f978/platos_apology_of_socrates_summary.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_off0000e485.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE485 5672 bytes
SHA-256: eebaa21568caef0ba1e62b49df815dd896584e157a5967ab77690c6c985e7e82
font_01_sfnt_off0000f7b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7B5 10876 bytes
SHA-256: 9ee32262e003fc5ac9ab68bfa411c7bf35463d58cd728c99d53487ece0c30d14

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