Malicious PDF — malware analysis report

Static analysis result for SHA-256 83736aef80320dcc…

MALICIOUS

PDF

79.0 KB Created: 2021-03-22 06:07:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: f79e2ad4e67dbe5b3afe28644285e17c SHA-1: 0b5be83969445fcc579833fdacb6c678acd7ebb1 SHA-256: 83736aef80320dccf46f8f0b8ff82f33a52aade2d5ffb40bfdd30d28473f3d81
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, with one prominent URL pointing to 'ponafet.ru', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to be a lure related to a game guide, indicating a social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/wix?keyword=arcane+archer+build+pathfinder+kingmaker PDF link annotation
    • https://liwitozawaben.weebly.com/uploads/1/3/4/0/134042828/kadevomupaki.pdfIn PDF document text
    • https://lelebozo.weebly.com/uploads/1/3/4/5/134578107/wibaf.pdfIn PDF document text
    • http://lajalura.22web.org/what_is_wd_tv_live_media_player.pdfIn PDF document text
    • http://zuregazezoral.mygamesonline.org/andrew_clements_things_not_seen_series.pdfIn PDF document text
    • https://tusezewepoxir.weebly.com/uploads/1/3/4/3/134339989/joxagorawugodozibelo.pdfIn PDF document text
    • http://wimuzawoxi.getenjoyment.net/22415068469.pdfIn PDF document text
    • http://fevinoreniwelik.sportsontheweb.net/bozekowuzozotidefadafew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bubewap.rf.gd/tinajuwan.pdfIn PDF document text
    • http://visiporogid.epizy.com/asahi_pentax_sp500_manual.pdfIn PDF document text
    • http://vepitejususas.atwebpages.com/binoxogoja.pdfIn PDF document text
    • http://vokesakogo.onlinewebshop.net/fobalokuzodafevu.pdfIn PDF document text
    • http://gusufarafedi.epizy.com/database_administrator_exam_questions_and_answers.pdfIn PDF document text
    • http://widusop.atwebpages.com/arbeitsvertrag_aushilfe.pdfIn PDF document text
    • http://sudexixurijaxoz.atwebpages.com/list_of_all_trigonometric_formulas_and_identities.pdfIn PDF document text
    • https://03386fec-e341-46be-bf9f-2f2bd19f9bfe.filesusr.com/ugd/bf57b5_ad2eeef5aca94f63a21e19ac07fc587d.pdf?index=trueIn PDF document text
    • https://85ed388a-52e0-4e79-9737-9d4b769dda71.filesusr.com/ugd/bb10c5_6c1e23528f3f4c219930b043a6bf4bad.pdf?index=trueIn PDF document text
    • https://550dfcec-0280-4316-a0d5-68b74a7a20b9.filesusr.com/ugd/f59309_3173c547010d4a168b92bda73509aa23.pdf?index=trueIn PDF document text
    • https://b00f38ea-0d13-4519-ab0f-1253f0d03ca0.filesusr.com/ugd/289c5e_2d604abca3c744dd977b060cfb43dc0a.pdf?index=trueIn PDF document text
    • https://83372c7a-1065-4b07-8284-b64562b46e84.filesusr.com/ugd/035489_987dbafb1de04c9f92167d5692e8654b.pdf?index=trueIn PDF document text
    • http://lijowavatajo.myartsonline.com/charles_bukowski_post_office.pdfIn PDF document text
    • http://namewel.rf.gd/nizelitufifubud.pdfIn PDF document text
    • http://tiwojojerat.rf.gd/meveba.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_off0000f737.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF737 5584 bytes
SHA-256: e1427bb59b53abce268330bef89dd3ac77a14e71b9c138e07ccf43587453ac39
font_01_sfnt_off00010a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A0B 10604 bytes
SHA-256: 7e07a50ecd3c3c72694dee76d8058186e8153cc7406ef64050a5aa87d0f4db86

Open this report in the interactive analyzer, or submit your own file for analysis.