Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb6033b9106202cd…

MALICIOUS

PDF

80.6 KB Created: 2021-02-24 07:29:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 809e183110d6395f9221561a5ed9bc39 SHA-1: edb34076c333bb75cb4f134c59a1e5ff2b2f2a37 SHA-256: eb6033b9106202cdb58d804503f068dbe194735b5c73bbfb8979141d4a830d28
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/123?utm_term=dark+souls+3+best+pvp+builds+2019 PDF link annotation
    • https://cdn.sqhk.co/fajoliteve/wukhbif/29522366900.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488130/normal_600b3b4f19c50.pdfIn PDF document text
    • https://cdn.sqhk.co/japexexuko/c7iaThj/become_a_successful_game_developer.pdfIn PDF document text
    • https://bogonifad.weebly.com/uploads/1/3/4/1/134108647/rojubesijuwenaki.pdfIn PDF document text
    • https://lefafikof.weebly.com/uploads/1/3/0/9/130969708/682586.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412894/normal_6030013d51c7f.pdfIn PDF document text
    • https://gifimaxenewurup.weebly.com/uploads/1/3/4/4/134458705/0f33c5feb88abc5.pdfIn PDF document text
    • https://cdn.sqhk.co/naliwanik/igYLt48/wedding_salon_2_libii_games.pdfIn PDF document text
    • https://cdn.sqhk.co/terasovo/hRiTOgb/popeyes_biscuit_meme_end_it_all.pdfIn PDF document text
    • https://jorazejub.weebly.com/uploads/1/3/2/6/132695428/5105552.pdfIn PDF document text
    • https://rijojuno.weebly.com/uploads/1/3/5/3/135310883/soviwepitukami_lipusowis.pdfIn PDF document text
    • https://cdn.sqhk.co/vanatuwo/Jjbp7ds/20129661050.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459326/normal_5fff32a44ccc9.pdfIn PDF document text
    • https://fegojobakib.weebly.com/uploads/1/3/1/1/131163858/jokodejurumoba-wineso-kalapelabixek-nowaseje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479715/normal_60355fcd04c4b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000fba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBA6 5864 bytes
SHA-256: 304505620ab140f5bd23de0cf2086b2ef26fa79adbb08f524a980bc1f7c0c79b
font_01_sfnt_off00010faf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FAF 11292 bytes
SHA-256: 6f859b30bf8807bd7a20db384161121495c0447fd75c230ee340d8c640262825