Malicious PDF — malware analysis report

Static analysis result for SHA-256 dee09cf51442383c…

MALICIOUS

PDF

68.3 KB Created: 2021-02-13 08:06:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 56d0d753d3c0c46fa0ad9d3ecc7dc1a5 SHA-1: b44bbfca6fa5abce697419283d9227964414cb5b SHA-256: dee09cf51442383c075262f4353e73160d6b51997a23ad9bff4fa5064f649101
166 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
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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/wix?keyword=eberron+airship+map PDF link annotation
    • https://topalezomezo.weebly.com/uploads/1/3/4/3/134305389/8134407.pdfIn PDF document text
    • https://sivubatololux.weebly.com/uploads/1/3/4/8/134850937/zaputifora.pdfIn macro / runtime command snippet
    • https://sopuduzebuvagaf.weebly.com/uploads/1/3/0/7/130775825/8597201.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454694/normal_5feedbd390da2.pdfIn PDF document text
    • http://pazobano.iblogger.org/62499871440.pdfIn PDF document text
    • http://moshon.space/inconformismo_social_significado57qp8.pdfIn PDF document text
    • https://buwumesuja.weebly.com/uploads/1/3/5/3/135303403/gozifozufipog_jabenejagogilos_wudafov_fivovoporila.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409000/normal_6013400d6dd12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454822/normal_5fcefcc0348ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402481/normal_601055ccf3515.pdfIn PDF document text
    • http://load-bcp.com/storm_silver_ingots_blessedrj6nl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392444/normal_600f0a6194a9d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zisajevejeniw.epizy.com/latest_bollywood_movies_full_hd_1080p.pdfIn PDF document text
    • http://vakabivemu.epizy.com/2d_video_game_character_animation.pdfIn PDF document text
    • http://kekokid.epizy.com/python_print_curly_braces_in_format.pdfIn PDF document text
    • http://vuzoziwulof.epizy.com/new_odia_dhoka_video_song.pdfIn PDF document text
    • http://jijetebum.epizy.com/holly_jolly_christmas_sheet_music_free.pdfIn PDF document text
    • http://fizufanotujo.epizy.com/font_awesome_5_pro_cheatsheet.pdfIn PDF document text
    • http://xupudajiwozov.epizy.com/vafalefuliwasovidotes.pdfIn PDF document text
    • http://xulufavuso.rf.gd/atomic_timeline_reinforcement_worksheet_answers.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://vuzoziwulof.epizy.com/new_In macro / runtime command snippet
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0C7 5124 bytes
SHA-256: b1488dd2ac202fba1bc4bc71a7ca869140ef73d86d295821dd0c4c9ec27b7cae
font_01_sfnt_off0000e203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE203 10128 bytes
SHA-256: dafb0a36d18df1b9daddb819623fb5a5bc98d6d96caa8f07f7c3dcd9a081bdeb