PDF malware analysis — malicious · d039bd820bd46b61

MALICIOUS

PDF

59.3 KB Created: 2020-11-22 00:13:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: d1bf86a7bb8f7ac08bbaf637042ebef9 SHA-1: 183a8144ab00b79a844cdf5cd7bc81c27fb2258e SHA-256: d039bd820bd46b613c82e388be784a3fc495db8c454077cdbe8fcac3ecb66be6

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9994

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
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.
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://cctraff.ru/aws?utm_term=adp+paycheck+template+free In PDF document text
- https://nodimawajovuri.weebly.com/uploads/1/3/4/4/134431691/tixirukimizu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369164/normal_5faf691ef2f2b.pdfIn PDF document text
- https://wazijewafaset.weebly.com/uploads/1/3/4/4/134437152/lefugapojavug.pdfIn PDF document text
- https://zobuxojakaxux.weebly.com/uploads/1/3/4/6/134690110/aa04e34e.pdfIn PDF document text
- https://ragikigoludu.weebly.com/uploads/1/3/4/8/134849848/govekuxofeze-sukoziguzodevov-waxopi-malokuvul.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386593/normal_5fad3d5bc753b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393904/normal_5f9d71e3b8db8.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/d2ba8c48-4cab-4472-9cfd-04cf1e559f73/nilebidowavikuzimegima.pdfIn PDF document text
- https://s3.amazonaws.com/xazarujokemus/93704004139.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6e221c51-33cc-4122-94f4-6cf70078cade/the_keys_of_the_kingdom.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000aef3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAEF3	5372 bytes
SHA-256: `1623e1940c5d6120d2f689e20dd670a94c42ff6e370682aece2f1cd97007e2a1`
`font_01_sfnt_off0000c11f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC11F	9320 bytes
SHA-256: `0c264e2d3f75c05fec16a7fcfaa6da01dd101129b1fe333004f3126b14810a7b`

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