Malicious PDF — malware analysis report

Static analysis result for SHA-256 182702893ecbde8b…

MALICIOUS

PDF

77.5 KB Created: 2021-03-17 22:21:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: eb24cc5346f92550fb21499c79497d73 SHA-1: 97374a95c9d0c24b29d91c3daa2246c142b52e2e SHA-256: 182702893ecbde8ba6a82ec8c2f21e9092ba47fcd58fa18774b390bdddf1c5df
184 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, many of which point to disposable domains, suggesting a link farm designed for SEO manipulation or phishing. The ClamAV detection and ML classifier indicate malicious intent, likely to redirect users to malicious sites or download further payloads. While no scripts were explicitly extracted, the PDF structure and heuristics strongly suggest it's part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7720

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 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
  • 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/award?keyword=good+architecture+portfolio+examples+pdf PDF link annotation
    • http://wivupivipewezap.mygamesonline.org/biozone_ib_biology_student_workbook.pdfIn PDF document text
    • http://vurejowug.mypressonline.com/my_schlage_lock_stopped_working.pdfIn PDF document text
    • https://xixurisegiwawaz.weebly.com/uploads/1/3/4/0/134012782/xatotetenevulim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502511/normal_6046063446320.pdfIn PDF document text
    • https://nazalufu.weebly.com/uploads/1/3/1/4/131409274/0feb2ba41629980.pdfIn PDF document text
    • https://sojenumodab.weebly.com/uploads/1/3/5/2/135296615/rofekomaziworu_luzeboro_patuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458634/normal_601d010d2f602.pdfIn PDF document text
    • https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/nokive_ginapamoru.pdfIn PDF document text
    • https://meligobuv.weebly.com/uploads/1/3/1/0/131070858/kiwagilu_pusuxeze.pdfIn PDF document text
    • http://logowiwubapokar.iblogger.org/brockton_police_department_police_reports.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e05f3e0d-d97b-463d-b30f-94f87dc83add/getolidavubuguji.pdfIn PDF document text
    • https://de315c38-daa2-4293-b666-e554ba9b7d65.filesusr.com/ugd/564d2e_c1828772a4d04aaf81bfaa4196cb8e11.pdf?index=trueIn PDF document text
    • http://lutaxipokujopej.epizy.com/mark_twain_lake_fishing_guide.pdfIn PDF document text
    • https://cb6d8354-940b-4e05-9f1d-0150973ab277.filesusr.com/ugd/882da0_f5f4cd2e008843b5b7a55f146202f7df.pdf?index=trueIn PDF document text
    • https://d12e84a0-9808-45da-82c6-613dfe540d1b.filesusr.com/ugd/dc8a8e_87a6ab80f6d84a6884619ea8fd9e851a.pdf?index=trueIn PDF document text
    • http://gegilifopom.myartsonline.com/77814305059.pdfIn PDF document text
    • https://f5ab370f-1445-465c-ae0a-adb246d340ff.filesusr.com/ugd/2d95ce_a87c69b195364f258c3bd39c0f852e12.pdf?index=trueIn PDF document text
    • http://merekum.rf.gd/double_sided_adhesive_sheets_south_africa.pdfIn PDF document text
    • https://10bc5e17-7652-4c7e-9b43-999b3eb3b021.filesusr.com/ugd/5edc69_00c39da391d542dab5e47ca3c06f86c4.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9393804f-38f4-4d99-bbca-9e8712fb1006/sunbeam_heated_mattress_pad_p85kqa_manual.pdfIn PDF document text
    • http://vavijirodujozi.rf.gd/78796398407.pdfIn PDF document text
    • http://vofolosozoz.epizy.com/wenesopig.pdfIn PDF document text
    • http://tevefetilojas.atwebpages.com/33119858561.pdfIn PDF document text
    • http://biwosagamivi.myartsonline.com/critical_appraisal_book.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11625 5492 bytes
SHA-256: c3d325f67c3f2fe2518f2b662abb7b40bb6b15e06c51b0a74abf361b0099f65a

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