Malicious PDF — malware analysis report

Static analysis result for SHA-256 e830f8b3313d1bb9…

MALICIOUS

PDF

79.1 KB Created: 2021-04-06 18:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 28685f23991124728db41482334cf2d0 SHA-1: 204193f60fe033cfd3de73b526955f98b37c5954 SHA-256: e830f8b3313d1bb95060d7c367a4a62d8e1754de9f38b4273bcb623412ed85f4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://xajibur.ru/123?utm_term=bible+in+arabic+pdf PDF link annotation
    • http://4bochki.ru/lolemamegirimozijelinozop63n6.pdfIn PDF document text
    • http://blu-ital.space/paxeluw7tqqm.pdfIn PDF document text
    • https://cdn.sqhk.co/tazakabebilo/jiiTcgh/78872007771.pdfIn PDF document text
    • https://cdn.sqhk.co/ferorigife/FjbeYgi/stickman_destruction_5_annihilation_mod_apk_unlimited_money.pdfIn PDF document text
    • https://wonikisemuk.weebly.com/uploads/1/3/4/9/134902350/3646617.pdfIn PDF document text
    • https://xozijelotegog.weebly.com/uploads/1/3/5/3/135327018/najilu.pdfIn PDF document text
    • http://jadebey-x.com/bedugunufp4ss.pdfIn PDF document text
    • http://lnstagramsupportinfo.com/nalitovujezapzct8.pdfIn PDF document text
    • http://santand-es.com/how_to_program_genie_garage_door_opener_in_cardck3l.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwadezab/tgjwWYU/artillery_sidewinder_x1_upgrades.pdfIn PDF document text
    • https://titerafutar.weebly.com/uploads/1/3/0/7/130775646/3594813.pdfIn PDF document text
    • https://relitemora.weebly.com/uploads/1/3/4/3/134352419/geriragatefe.pdfIn PDF document text
    • https://cdn.sqhk.co/xidizizo/yvhdjbi/93885878809.pdfIn PDF document text
    • https://gemiporelowagi.weebly.com/uploads/1/3/0/7/130775846/217707.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f87dad00-abe0-4cb0-8374-a7f4488aff88/yamaha_htr_5730_remote.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/feefc6e7-b94b-456d-9e90-ec16551d9e99/best_bible_quiz_app_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf6c867b-9a44-48b2-a510-2cbda5a96183/watch_the_hunger_games_catching_fire_full_movie_123movies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bd1988f-9918-4852-8a6a-2545215def0a/gusobesilerifuzus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5b0efd0-4a88-40e3-b8fe-878e45d6487f/65291470408.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49b8f299-0e4d-419d-a247-79163b6ec3ce/mosoxajewitepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e200f29d-8fed-43fd-b35a-7346c4212ba3/77788748544.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50ab4a1a-9632-41ed-aa4d-a2c90ec1f779/44204732999.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5520c51-667d-40ab-8d53-55ad7c08d06e/sajimevogusugewisunipopu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56b34e9f-b572-4959-9d7c-ca66fa690519/chevy_malibu_led_tail_lights.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_off0000f7c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7C7 5160 bytes
SHA-256: 3464ea0c917ff29d8def34c9815118f2daa525a7e71ec3834cb8d4c507f43326
font_01_sfnt_off0001095f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1095F 11312 bytes
SHA-256: 7102afb02e4e2a96f4b90587a29b704184d669efcdc740431b1147f58b3e4d6b

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