Malicious PDF — malware analysis report

Static analysis result for SHA-256 04284b0ed3afa036…

MALICIOUS

PDF

75.0 KB Created: 2021-03-14 19:51:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 021821f6d0d40eea122eb816379d8f6d SHA-1: 724d3a064ea6b792c8b51ad1ca7f82b2eb15f3bf SHA-256: 04284b0ed3afa0362b901cc3690153d1046bc2b2e4aac39f8152b63cf11cbdae
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

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 0.9800

Heuristics 4

  • 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
  • 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://lozipotod.ru/strik?utm_term=flower+of+life+mandala+tattoo+meaning PDF link annotation
    • http://voztrans.ru/646603354912oyyg.pdfIn PDF document text
    • https://penopamez.weebly.com/uploads/1/3/4/4/134496097/pimona.pdfIn PDF document text
    • https://zukigepuzena.weebly.com/uploads/1/3/4/5/134593101/rijinoko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377935/normal_60055dfe23114.pdfIn PDF document text
    • http://bcpreactiva-enlinea.com/xeliwawajujoxiqfjwa.pdfIn PDF document text
    • http://trysalon.xyz/redhead_safes_for_sale5ndm4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389090/normal_5ff46ce066095.pdfIn PDF document text
    • http://madamzero.com/neufert_16_edicion_descargar_gratiswhdq2.pdfIn PDF document text
    • https://bafuzonexive.weebly.com/uploads/1/3/0/7/130739369/lesukewuwaso-pajex-bufodevakamufu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450434/normal_60384b7992eeb.pdfIn PDF document text
    • http://nudazemuxebabu.22web.org/73053198965.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451556/normal_5fccf4f965b06.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://d525ee04-2a40-494f-8ba9-fee52f7b18ee.filesusr.com/ugd/8b8e24_a688ba0a7e374b7dba8a94548732da77.pdf?index=trueIn PDF document text
    • https://f74ea38a-ab8d-49a0-8d31-9a1d7ce64423.filesusr.com/ugd/5ceade_e3fd08d18a53444b8e1ea8150c1ce6fa.pdf?index=trueIn PDF document text
    • https://b5d51143-f34a-4a4f-9265-6917490cb775.filesusr.com/ugd/9f69bd_cf0515b453d4414e9f49c2982e3f5f4f.pdf?index=trueIn PDF document text
    • http://fobiwuna.epizy.com/pudumozuzarimeziludo.pdfIn PDF document text
    • http://pixuxurarosu.epizy.com/ieee_software_requirements_specification.pdfIn PDF document text
    • https://436c154b-1c2d-4c60-9768-ed3a268ef5e1.filesusr.com/ugd/e8e253_bfa8989620644bd2b390514155ce78af.pdf?index=trueIn 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_off0000fe3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE3D 5096 bytes
SHA-256: b9a487e66a7ca492d04310a347e095497c0ab29b65c29f9abbeec3131e23e520

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