Malicious PDF — malware analysis report

Static analysis result for SHA-256 3404d0641c04dfe9…

MALICIOUS

PDF

68.0 KB Created: 2021-02-12 06:16:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: db721865c257f1cf71345302ffd54977 SHA-1: 92d1beff7c284cdee592077475362e250c70385a SHA-256: 3404d0641c04dfe97939ec84f6acfa4abd675fbefcd838cc12a0adca26ace566
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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/wb?keyword=bean%201997%20movie%20free PDF link annotation
    • https://cdn.sqhk.co/buwowunuras/bif4Uhb/free_survival_fire_battlegrounds_battle_royale_apk.pdfIn PDF document text
    • https://fezemopozopedet.weebly.com/uploads/1/3/5/3/135326879/taleli.pdfIn PDF document text
    • https://cdn.sqhk.co/xaxovowupofa/LZFPhcq/transference_game_plot.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/iX5bjhd/62477850746.pdfIn PDF document text
    • http://instasale.company/essential_comd1ywr.pdfIn PDF document text
    • https://cdn.sqhk.co/timadupak/9Bqijha/bubble_bobble_game_boy_color_rom.pdfIn PDF document text
    • https://nunevebola.weebly.com/uploads/1/3/4/8/134846747/sigibuzabo_sidefad.pdfIn PDF document text
    • https://sepanafawo.weebly.com/uploads/1/3/4/3/134316973/2208959.pdfIn PDF document text
    • https://cdn.sqhk.co/vulovosovem/ihfwZ8N/outbreak_cast_monkey.pdfIn PDF document text
    • http://fullhp.info/pasefabisuriniforadevoresxy34p.pdfIn PDF document text
    • https://godowipi.weebly.com/uploads/1/3/4/5/134520373/5c7b24a7d36.pdfIn PDF document text
    • http://nubolutlion.xyz/future_tense_english_grammar_worksheetasq94.pdfIn PDF document text
    • https://zagarete.weebly.com/uploads/1/3/4/6/134687236/zuxifolawi-gidizakek.pdfIn PDF document text
    • https://cdn.sqhk.co/netimupoxojo/cSyjfHq/maze_runner_2_trailer_legendado.pdfIn PDF document text
    • https://cdn.sqhk.co/tivinarafuvu/hjiiij4/buzenaxunivomolujovekoxuj.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_off0000cd60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD60 5100 bytes
SHA-256: 3ca428b566a4a8329d85709940edeb5b2dbe56e4f80b1bebcb8827ee912bdb1b
font_01_sfnt_off0000dec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC1 10784 bytes
SHA-256: d8e4bb7c00b58dd9e9643a4d062125c097983e48c932eba59092a905c1667b8e