Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d9e86b24093cd68…

MALICIOUS

PDF

75.1 KB Created: 2021-04-02 06:40:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 3f46eddaae06d4884db7cebecfe52504 SHA-1: 2329314f0a71f57f1c07a408ec2a02b8247fb3de SHA-256: 2d9e86b24093cd68c1fab3108c7f35286cc1d0bd323a68bad5b42bd6dd0a1795
184 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to external websites, one of which is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to be a lure for a Tony Robbins PDF, suggesting a phishing or scam attempt. The presence of multiple disposable domains and link farms further supports a malicious intent to distribute malware or phish for information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/award?keyword=awaken+the+giant+within+tony+robbins+pdf+download In PDF document text
    • http://snt-br.ru/sibigofepizawuvi5v1t5.pdfIn PDF document text
    • http://save50it.info/xubiwibisejinixijuzarqpftz.pdfIn PDF document text
    • https://cdn.sqhk.co/bitowiso/hgjigfg/wofowe.pdfIn PDF document text
    • http://dosubodanes.mypressonline.com/93356830476.pdfIn PDF document text
    • http://wodedutipif.medianewsonline.com/personalpronomen_im_akkusativ_und_dativ_bungen.pdfIn PDF document text
    • https://cdn.sqhk.co/numisezopo/3dhhNcu/rokiboteduvozupulabo.pdfIn PDF document text
    • http://constructionhouse.info/xarawovenezidibeveledefelbgrvo.pdfIn PDF document text
    • http://borejukeluteva.mygamesonline.org/how_to_get_a_fine_dining_server_job.pdfIn PDF document text
    • http://lotukaguw.sportsontheweb.net/57923063667.pdfIn PDF document text
    • http://ijmalan.xyz/39195269998ab41v.pdfIn PDF document text
    • http://jidokove.scienceontheweb.net/brother_hl_2040_paper_reset.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/jSYaMLu/79338328322.pdfIn PDF document text
    • http://metalllift.ru/nurejese8gnz.pdfIn PDF document text
    • https://cdn.sqhk.co/bikawegaj/gc2jahb/piviru.pdfIn PDF document text
    • http://letinebab.mywebcommunity.org/8510766014.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://2b12d24f-0c9a-4a32-b427-430aba395f0c.filesusr.com/ugd/6cfe90_42baa2f425e14179af062bbfd4091568.pdf?index=trueIn PDF document text
    • https://41be308f-8a64-4dec-8b30-4937605be974.filesusr.com/ugd/f042fe_c99eae92289a4a02ae2590cee42b9245.pdf?index=trueIn PDF document text
    • https://aa4de0c4-a7fb-47f6-97fe-5721705e71c1.filesusr.com/ugd/824332_25cff7bda0be41509e4146082818ce29.pdf?index=trueIn PDF document text
    • http://wilaroxu.atwebpages.com/wild_animals_name_list_with_picture.pdfIn PDF document text
    • https://e5058785-d3d1-442e-b0ad-d0045053dde7.filesusr.com/ugd/17c622_76ba483c50394bb4a777d0cc20d3b75b.pdf?index=trueIn PDF document text
    • https://627ea4a7-3f28-4bf3-8c99-6a9da7dacf48.filesusr.com/ugd/1970e2_23e867798e074418b9a2b3154f3b7e38.pdf?index=trueIn PDF document text
    • http://luzojora.atwebpages.com/copenhagen_burnout_inventory_questionnaire.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_off0000e7a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7A6 5688 bytes
SHA-256: 77d8f79d3ce255c1284d2185641a0903902bfc5ab48808df09e380ae0082fe7f
font_01_sfnt_off0000fb12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB12 10812 bytes
SHA-256: a82e88578a47960b577f1801b3f52020b23baba472effd980265c191120c9554

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