Malicious PDF — malware analysis report

Static analysis result for SHA-256 a99f0c7ee9407649…

MALICIOUS

PDF

64.4 KB Created: 2021-02-13 03:00:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3d448ac70d3dca4f200dc06403d7576c SHA-1: 25c3b3f99121433dbe7ec96af5459758dd6d55cb SHA-256: a99f0c7ee94076495f6518ee76a7ab25409635313f5d894cd888f1230bfd04a3
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://druttle.ru/wix?keyword=fish+lake+guntersville+guide+service+scottsboro+al PDF link annotation
    • https://jewakazakiven.weebly.com/uploads/1/3/1/4/131437085/mavamu-gikonulogojabik.pdfIn PDF document text
    • http://bobr.space/598170528814lgj9.pdfIn PDF document text
    • https://jobalexaxikut.weebly.com/uploads/1/3/4/8/134892204/417ca0c935.pdfIn PDF document text
    • http://sokesiket.22web.org/muzupid.pdfIn PDF document text
    • http://astrology-personal.online/appareil_gnital_masculin_anatomiektlnx.pdfIn PDF document text
    • https://falatunasozenu.weebly.com/uploads/1/3/4/7/134762474/kanelalifo.pdfIn PDF document text
    • https://wezenazuzive.weebly.com/uploads/1/3/4/7/134764498/a96b2726f.pdfIn PDF document text
    • http://alkim.xyz/sazoxekxlcnd.pdfIn PDF document text
    • https://jajonugofetafis.weebly.com/uploads/1/3/0/7/130776034/zugekotij-pemaxitiwotun.pdfIn PDF document text
    • http://busforpay.online/anualidades_diferidas_ejemplos9fi6a.pdfIn PDF document text
    • https://tuxativavowaz.weebly.com/uploads/1/3/1/4/131437956/fefikegukamej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wubonaxe.epizy.com/decimal_number_line_worksheet_answers.pdfIn PDF document text
    • http://zajegugolex.epizy.com/astrology_compatibility_report_birth_date.pdfIn PDF document text
    • http://xogegusubo.rf.gd/archeology_magazine.pdfIn PDF document text
    • http://gawuvuv.epizy.com/bhakta_prahlada_telugu_full_movie_free.pdfIn PDF document text
    • http://zutotonez.epizy.com/guxurumebomitumi.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_off0000bfad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFAD 5420 bytes
SHA-256: 7e12839c698be2c6d864dd00624704b8f214a89232c9fb204748be4d82b8a596
font_01_sfnt_off0000d21f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD21F 9936 bytes
SHA-256: bf766f8e074b7dd77584dab8a147335d44306cc0a7b436925f683007982a6a72