Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba11054c22ae7ec…

MALICIOUS

PDF

67.3 KB Created: 2021-02-21 02:37:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5aa9191a52bf2c95bd721dbba576391f SHA-1: 6909b7ea2dd9e88734be7bd8b5c20b4ee6901bb5 SHA-256: 2ba11054c22ae7ece9d63262d40bf14eb3762d91518761d4278e8d552c6bd537
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=kimi+wa+raw PDF link annotation
    • https://cdn.sqhk.co/leporolino/gejbgdX/dodirub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384650/normal_5fe632b147561.pdfIn PDF document text
    • https://kirorasonosa.weebly.com/uploads/1/3/4/7/134743937/5609343.pdfIn PDF document text
    • https://bikigevoxepasi.weebly.com/uploads/1/3/4/7/134716722/vegak.pdfIn PDF document text
    • https://jurozujuzofu.weebly.com/uploads/1/3/4/8/134875655/1957169.pdfIn PDF document text
    • http://dogosufomume.iblogger.org/rent_agreement_online_delhi.pdfIn PDF document text
    • https://cdn.sqhk.co/fosigigamef/hiifVii/no7_light_up_mirror_amazon.pdfIn PDF document text
    • https://lixumubol.weebly.com/uploads/1/3/1/3/131384516/3716164.pdfIn PDF document text
    • https://levapexufusetij.weebly.com/uploads/1/3/4/9/134904519/fagavisumufetug_tubara.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/i9gedie/nanul.pdfIn PDF document text
    • http://nukowivoxom.iblogger.org/landline_phone_with_answering_machine_best.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zesodowiponuse.epizy.com/bengali_song_video.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC309 4684 bytes
SHA-256: e1a8b3cfef8c4d9f334a3bf322d82883a14958b68cb92306a21d806e91e74353
font_01_sfnt_off0000d2e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2E8 2616 bytes
SHA-256: 73d6f54f81ee2987ae7745a2d17e5d3e290553cccf4c37eadb28701b2e23e8f6
font_02_sfnt_off0000de11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE11 9948 bytes
SHA-256: 906f1a55db4dfee88197c6a6ad0b9bfa68218e56395d3ab73491bb0c7e825167