Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca7067a6d8395384…

MALICIOUS

PDF

75.0 KB Created: 2021-03-11 00:46:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 09c1668bf0d30237822492930a2b7e3c SHA-1: f192526d959d03d08fd010a4da4f8d4d0e5f0a9f SHA-256: ca7067a6d8395384aec372bd555bad0c3eaec75319f7f61303ed9c7379b3fd00
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8479

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://dugedepap.ru/award?keyword=alimenta%25C3%25A7%25C3%25A3o+saudavel+idosos+pdf PDF link annotation
    • http://waliduv.mypressonline.com/ncert_maths_book_class_8_free_download.pdfIn PDF document text
    • http://gawudubigojan.getenjoyment.net/tugofixoja.pdfIn PDF document text
    • https://zewekoli.weebly.com/uploads/1/3/5/9/135966642/bazewemipidojul.pdfIn PDF document text
    • http://saxobupazes.sportsontheweb.net/nofesosonele.pdfIn PDF document text
    • https://fikakexuk.weebly.com/uploads/1/3/0/7/130775276/xosaxukibapodin_senopiliviruxoj_jexizajisora.pdfIn PDF document text
    • http://kokulotasuz.mygamesonline.org/hero_much_ado_about_nothing_character_analysis.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/zobumodozoxegukud.pdfIn PDF document text
    • https://bozuluxowefag.weebly.com/uploads/1/3/5/3/135349757/fofifobeteje.pdfIn PDF document text
    • https://dojepojejexun.weebly.com/uploads/1/3/4/6/134668276/dozigipi.pdfIn PDF document text
    • https://nalokulomegeze.weebly.com/uploads/1/3/4/7/134758193/zabati.pdfIn PDF document text
    • https://nolulanulupu.weebly.com/uploads/1/3/1/3/131379612/7f5bdf870d5ce.pdfIn PDF document text
    • https://kurebefa.weebly.com/uploads/1/3/1/1/131164205/717400.pdfIn PDF document text
    • http://xejepurefe.scienceontheweb.net/panasonic_sr-3nal_1.5-cup_automatic_rice_cooker.pdfIn PDF document text
    • https://bugemojumowos.weebly.com/uploads/1/3/5/3/135346690/3d96522e4a2087.pdfIn PDF document text
    • https://natesikapepik.weebly.com/uploads/1/3/4/7/134750077/riresiparevuko_kulezove_sakem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://650c977b-0274-48a2-8498-43c0efc39f4e.filesusr.com/ugd/dbad32_de2646ceeb8242c28739b8e094290cec.pdf?index=trueIn PDF document text
    • http://gozuketitara.onlinewebshop.net/mejalaboworok.pdfIn PDF document text
    • https://36535336-4f9e-4c0a-b1ad-3385cb5d4299.filesusr.com/ugd/15ebe2_83fb309a78264a538f4e3e4f29536fb0.pdf?index=trueIn PDF document text
    • http://kutijizon.epizy.com/aaqa_ka_milad_aaya_audio.pdfIn PDF document text
    • http://gifasovu.epizy.com/kabali_full_movie_2017.pdfIn PDF document text
    • http://fuxivupinamipi.rf.gd/filum_anelidos.pdfIn PDF document text
    • https://dc383e6d-b7a3-4e67-a88a-227fa542b6c3.filesusr.com/ugd/72b0e7_b5fb9fa1696e46808083ce59614b6b7a.pdf?index=trueIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4B 5640 bytes
SHA-256: c15971e5d173f801a2481447d6773772faa9129fe7881bf962b23d9f3677b24f

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