Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b2d382f857cb830…

MALICIOUS

PDF

68.9 KB Created: 2021-01-18 12:52:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: eb84ba97046438f4b0124a8331a5ca95 SHA-1: f9fec1424e0a07ab7d519d097ccfc65b8d70638f SHA-256: 5b2d382f857cb830406243e682255a8be4198066f4630e0c2b8b98d1123e0829
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
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://jottigo.ru/aws?utm_term=assassin%2527+s+creed+3+remastered+pc PDF link annotation
    • https://cdn.sqhk.co/xovujiroveg/igijegg/crystals_guide_book.pdfIn PDF document text
    • https://cdn.sqhk.co/motuvitewodi/aggigii/teamviewer_quicksupport_mac_os_catalina.pdfIn PDF document text
    • https://cdn.sqhk.co/gisusisabez/eBifhix/lamawanuxasasoma.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419623/normal_5fa3464fe046e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461509/normal_5fbb4b271dece.pdfIn PDF document text
    • https://site-1173944.mozfiles.com/files/1173944/51632828689.pdfIn PDF document text
    • https://site-1168153.mozfiles.com/files/1168153/events_this_weekend_in_atlanta_georgia.pdfIn PDF document text
    • https://site-1225804.mozfiles.com/files/1225804/the_mooseman_platinum_walkthrough.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416504/normal_5fae568189497.pdfIn PDF document text
    • https://site-1167947.mozfiles.com/files/1167947/cricket_world_cup_all_time_stats.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/gjIEhhb/death_park_scary_clown_survival_horror_game_mod.pdfIn PDF document text
    • https://site-1168006.mozfiles.com/files/1168006/world_war_3_movies_on_netflix.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/vovopafubipu/8_ball_game_for_mobile.pdfIn PDF document text
    • http://jiporiri.rf.gd/vascular_malformation_leg_treatment.pdfIn PDF document text
    • http://bunakakivukutus.epizy.com/show_action_sheet_ios_objective_c.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_off0000d0f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0F8 5372 bytes
SHA-256: b743e08e3eb7003769bb1e89b1f2b74bfa8422091b102b8d8bf288a0b402ae0d
font_01_sfnt_off0000e32d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE32D 10388 bytes
SHA-256: fa797baee2bbe38026c66a3f78fef08888b5a64bcf8b1f2c4d6aa3e00fcdb2c2