Malicious PDF — malware analysis report

Static analysis result for SHA-256 9436e14ca5ec4b0a…

MALICIOUS

PDF

102.6 KB Created: 2021-03-06 06:54:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 0096bded5facdf7c1746e68c5d8a9e2f SHA-1: 8f418f84f6af7a671605df928d308d5560cd052c SHA-256: 9436e14ca5ec4b0a8cb66ec8ae8a2b5e7909d1247f85c8a43ccc632fc0902291
186 Risk Score

Malware Insights

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

The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a significant number of external links, many pointing to disposable hosting, suggesting a link farm or SEO manipulation tactic. The presence of embedded URLs and the overall structure strongly suggest this document is designed to redirect users to potentially harmful websites, possibly for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://seumenha.ru/123?utm_term=instrument+used+to+measure+weight PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404733/normal_6037ff381154c.pdfIn PDF document text
    • https://modisogisutoval.weebly.com/uploads/1/3/5/3/135390942/7516739.pdfIn PDF document text
    • http://jushq.pro/34391162345cafop.pdfIn PDF document text
    • http://sparzha.club/cisco_nexus_9500_data_sheeti7d2g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489983/normal_603a1605a2756.pdfIn PDF document text
    • http://pedron.fun/you_are_beautiful_video_song_freedmbio.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446923/normal_6043036a58be7.pdfIn PDF document text
    • https://bivofeneduwid.weebly.com/uploads/1/3/1/1/131163561/98593.pdfIn PDF document text
    • https://bazofaxeretaw.weebly.com/uploads/1/3/4/8/134868688/e70d9f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460706/normal_5fc72c4345eb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422914/normal_601cf89acf6be.pdfIn PDF document text
    • https://tamoniwezetiro.weebly.com/uploads/1/3/5/9/135961995/8358412.pdfIn PDF document text
    • https://vobasonuniba.weebly.com/uploads/1/3/4/6/134668907/109d20e241a11fe.pdfIn PDF document text
    • http://vemasujananexu.22web.org/animate_cgaffinetransform_translation.pdfIn PDF document text
    • http://musabonuluza.22web.org/99005974797.pdfIn PDF document text
    • http://zootime.store/harry_potter_y_las_reliquias_de_la_muerte_resumen_del_libro_de_danielq123r.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://e06e8306-d71e-4c92-aa1b-e8c52eeb44cb.filesusr.com/ugd/bc4951_05d8b0561bfc4b51ac5c64bbdc328dac.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/metakibeme/17716044887.pdfIn PDF document text
    • http://jedabotuz.epizy.com/dugewepenekisukaxiroz.pdfIn PDF document text
    • http://vefibuvusesusu.rf.gd/notefebemezagevi.pdfIn PDF document text
    • https://627f215e-41ba-4aa4-9906-5f9f9d117739.filesusr.com/ugd/8ab72e_63ff46e5546043878839391060cfe656.pdf?index=trueIn PDF document text
    • https://305aa2e3-e1d2-413d-aa2e-f1bb83d03ded.filesusr.com/ugd/92ee2b_a5f8f3437cff469bb21386d7cd9d0313.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/new_information_about_neet_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/enteric_fever_ppt.pdfIn PDF document text
    • http://koxikid.epizy.com/happy_birthday_song_video_for_mobile.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014846.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14846 5116 bytes
SHA-256: 7b8e840f86695546c383823d0ab471ddb135ca4d5e61bd7d1edd3bb6c9a94551
font_01_sfnt_off00015980.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15980 10924 bytes
SHA-256: 5ca8295efb8a2142f06d1c6d0d7ec96e45f3805b5a620a1491a51c94c4ea8abe
font_02_sfnt_off00017ead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17EAD 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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